Merge pull request #113: feat(web): add public master profiles

Add sanitized public GM profiles with publication controls, public /gm/{slug} pages, and links from public game surfaces.

Bump version -> 3.5.0

.gitea/workflows/deploy.yml

@@ -6,7 +6,7 @@ on:
       - main 
 
 env:
-  VERSION: 3.1.1
+  VERSION: 3.5.0
 
 jobs:
   # ЧАСТЬ 1: Собираем образы и кладем в Gitea (чтобы делиться с ребятами)

Directory.Build.props

@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <Version>3.1.1</Version>
+    <Version>3.5.0</Version>
     <TargetFramework>net10.0</TargetFramework>
     <LangVersion>preview</LangVersion>
     <Nullable>enable</Nullable>

README.md

@@ -4,7 +4,7 @@
 
 Проект разработан с упором на производительность, архитектуру Vertical Slice, Native AOT (для бота) и удобство развертывания с использованием .NET Aspire.
 
-**Текущая версия:** `v2.8.0`.
+**Текущая версия:** `v3.5.0`.
 
 ---
 
@@ -37,6 +37,8 @@
 - **📱 Telegram Mini App Dashboard**: Мобильная панель открывается из Telegram, проверяет `initData` на сервере, учитывает safe-area телефона и верхнюю панель Telegram.
 - **✏️ Редактирование**: Детальное изменение дат, названий и статусов сессий.
 - **🤝 Co-GM и делегирование**: Owner назначает помощников по Telegram ID; co-GM управляет расписанием, но **не может назначать других co-GM**.
+- **🌍 Публичные страницы клубов**: Owner и co-GM включают read-only страницу `/club/{slug}` и отдельные ссылки `/s/{sessionId}` только для опубликованных сессий; состав игроков и приватные join-ссылки не показываются.
+- **🧑‍🏫 Публичные профили мастеров**: мастер управляет профилем из `/profile`, публикует описание на `/gm/{slug}`, а публичные клубы, игры и каталог ссылаются на профиль без раскрытия platform identifiers.
 - **📋 Шаблоны кампаний**: Вкладка `Шаблоны` отдельно от страницы группы: сохранение типовых параметров и запуск нового batch из шаблона.
 - **📦 Bulk-операции для Batch Sessions**:
   - обновить общий `title`/`link` у всей пачки;

compose.yaml

@@ -49,7 +49,7 @@ services:
         crond -f
 
   bot:
-    image: git.codeanddice.ru/toutsu/gmrelay-bot:3.1.1
+    image: git.codeanddice.ru/toutsu/gmrelay-bot:3.5.0
     restart: always
     depends_on:
       db:
@@ -67,7 +67,7 @@ services:
       retries: 3
 
   discord:
-    image: git.codeanddice.ru/toutsu/gmrelay-discord-bot:3.1.1
+    image: git.codeanddice.ru/toutsu/gmrelay-discord-bot:3.5.0
     restart: always
     depends_on:
       db:
@@ -84,7 +84,7 @@ services:
       retries: 3
 
   web:
-    image: git.codeanddice.ru/toutsu/gmrelay-web:3.1.1
+    image: git.codeanddice.ru/toutsu/gmrelay-web:3.5.0
     restart: always
     depends_on:
       db:

docs/c4-system-context.md

@@ -8,17 +8,19 @@ C4Context
 
     Person(gm, "Game Master", "Creates sessions and manages schedules")
     Person(player, "Player", "Joins, leaves, confirms, and receives reminders")
+    Person(visitor, "Public visitor", "Views published club schedules, sessions, and GM profiles without private player data")
 
-    System(gmrelay, "GM-Relay", "Telegram bot, Discord worker, web dashboard, and shared scheduling logic")
+    System(gmrelay, "GM-Relay", "Telegram bot, Discord worker, web dashboard, public club/session/GM profile pages, and shared scheduling logic")
 
     System_Ext(telegram, "Telegram Bot API", "Commands, inline keyboards, callback queries, Mini App entry points")
     System_Ext(discord, "Discord Gateway and REST API", "Slash commands, button interactions, message edits, ephemeral replies")
-    SystemDb_Ext(postgres, "PostgreSQL", "Sessions, players, participants, groups, platform identities")
+    SystemDb_Ext(postgres, "PostgreSQL", "Sessions, players, participants, groups, platform identities, sanitized master_profiles")
 
     Rel(gm, telegram, "Creates and manages sessions")
     Rel(gm, discord, "Uses /newsession and /listsessions")
     Rel(player, telegram, "Uses inline buttons")
     Rel(player, discord, "Uses Join/Leave and RSVP buttons")
+    Rel(visitor, gmrelay, "Views public club, session, and GM profile pages")
     Rel(telegram, gmrelay, "Updates via long polling")
     Rel(discord, gmrelay, "Gateway events and component interactions")
     Rel(gmrelay, telegram, "SendMessage, EditMessage, AnswerCallbackQuery")
@@ -34,13 +36,14 @@ C4Container
 
     Person(gm, "Game Master")
     Person(player, "Player")
+    Person(visitor, "Public visitor")
 
     System_Boundary(runtime, "Docker Compose / Aspire runtime") {
         Container(bot, "GmRelay.Bot", "Worker Service, .NET 10 AOT", "Telegram long polling, commands, callback routing, reminders")
         Container(discordBot, "Discord Gateway Worker", "Внутри GmRelay.Bot", "NetCord Gateway, slash commands, scheduler notifications, button interactions, healthcheck :8082")
-        Container(web, "GmRelay.Web", "Blazor Server", "Dashboard, Mini App pages, editing and stats")
+        Container(web, "GmRelay.Web", "Blazor Server", "Dashboard, Mini App pages, public club/session/GM profile pages, editing and stats")
         Container(shared, "GmRelay.Shared", ".NET library", "Shared domain models, rendering, scheduler, and platform-neutral handlers")
-        ContainerDb(db, "PostgreSQL", "Database", "sessions, players, session_participants, game_groups, platform identities")
+        ContainerDb(db, "PostgreSQL", "Database", "sessions, players, session_participants, game_groups, publication settings, master_profiles, platform identities")
     }
 
     System_Ext(telegram, "Telegram Bot API")
@@ -50,6 +53,7 @@ C4Container
     Rel(gm, discord, "Slash commands")
     Rel(player, telegram, "Callback queries")
     Rel(player, discord, "Button interactions")
+    Rel(visitor, web, "Read-only public schedule and sanitized GM profile pages")
     Rel(telegram, bot, "GetUpdates")
     Rel(discord, discordBot, "Gateway events")
     Rel(bot, telegram, "Bot API calls")

docs/superpowers/specs/2026-05-28-game-catalog-showcase-design.md

@@ -0,0 +1,234 @@
+# Game Catalog and One-Shot Showcase — Design Spec
+
+> Issue #39: feat: добавить каталог игр и витрину ваншотов
+
+---
+
+## Goal
+Build a public `/showcase` page that aggregates published sessions from all clubs into a filterable catalog. Users can browse games by system, format, date, and availability. GM controls whether direct registration from the catalog is allowed. The catalog respects existing seat limits and waitlist logic.
+
+---
+
+## Architecture
+Extend the existing public-pages infrastructure (V026) with new session metadata fields, a cross-group query layer in `ISessionStore`, and new Razor pages in `GmRelay.Web`. Bot flows (Telegram + Discord) are updated to collect the new fields during session creation. Fuzzy matching on game system names is performed client-side in the bot UI.
+
+---
+
+## Tech Stack
+- .NET 10, Blazor Server, Dapper.AOT, Npgsql
+- Existing: `PublicLayout`, `ISessionStore`, `SessionService`, `SessionCapacityRules`
+- New: `GameSystem` enum, `ShowcaseFilter` record, `ShowcaseSessionDto`
+
+---
+
+## Data Model
+
+### New Fields on `sessions` (Migration V027)
+
+| Column | Type | Constraints | Description |
+|---|---|---|---|
+| `is_one_shot` | `BOOLEAN` | `NOT NULL DEFAULT false` | One-shot or campaign |
+| `system` | `VARCHAR(50)` | nullable | Game system name (enum value or custom) |
+| `description` | `TEXT` | nullable | Short description for card |
+| `cover_image_url` | `TEXT` | nullable | Cover image URL |
+| `duration_minutes` | `INTEGER` | nullable | Duration in minutes |
+| `format` | `VARCHAR(20)` | `CHECK (format IN ('Online','Offline','Hybrid'))`, nullable | Session format |
+| `allow_direct_registration` | `BOOLEAN` | `NOT NULL DEFAULT false` | Allow direct registration from showcase |
+
+### `GameSystem` Enum
+
+```csharp
+public enum GameSystem
+{
+    Dnd5e, Pathfinder2e, CallOfCthulhu7e, Shadowdark,
+    OldSchoolEssentials, Dragonbane, BladesInTheDark,
+    Daggerheart, CyberpunkRed, Mothership, AlienRpg,
+    WarhammerFantasy, VampireMasquerade5e, StarWarsFfg,
+    Genesys, SavageWorlds, GURPS, Fate, DungeonWorld,
+    Ironsworn, Other
+}
+```
+
+Stored as `VARCHAR(50)` in DB (not native enum) to allow future extension without migration.
+
+### DTOs
+
+```csharp
+public sealed record ShowcaseSessionDto(
+    Guid Id,
+    Guid GroupId,
+    string GroupName,
+    string? GroupSlug,
+    string Title,
+    DateTime ScheduledAt,
+    string Status,
+    string? System,
+    bool IsOneShot,
+    string? Format,
+    int? DurationMinutes,
+    string? CoverImageUrl,
+    int? MaxPlayers,
+    int ActivePlayerCount,
+    int WaitlistedPlayerCount,
+    bool AllowDirectRegistration);
+
+public sealed record ShowcaseFilter(
+    DateFilter Date = DateFilter.All,
+    SeatFilter Seats = SeatFilter.Any,
+    GameSystem? System = null,
+    bool? IsOneShot = null,
+    string? Format = null);
+
+public enum DateFilter { Today, Tomorrow, ThisWeek, All }
+public enum SeatFilter { Available, Waitlist, Any }
+```
+
+---
+
+## UI Design
+
+### `/showcase` — Catalog Page
+
+**Layout:**
+- Hero with title "Каталог игр"
+- Sticky filter bar (horizontal on desktop, collapsible on mobile)
+- Responsive grid of session cards (1 col mobile, 2 col tablet, 3 col desktop)
+- Pagination (page + pageSize = 12)
+
+**Filters:**
+- Date: "Сегодня" | "Завтра" | "На неделю" | "Все"
+- Seats: "Есть места" | "Waitlist" | "Любое"
+- System: dropdown with all `GameSystem` values
+- Type: "Ваншот" | "Кампания" | "Любое"
+- Format: "Онлайн" | "Офлайн" | "Гибрид" | "Любое"
+
+**Card Design:**
+- Cover image (fallback: colored placeholder with initials)
+- Title
+- System badge
+- Date + time (MSK)
+- Duration (e.g. "3 часа")
+- Format badge
+- Seats indicator: "5/6 мест" | "Waitlist (3)" | "Мест нет"
+- Club name (link to `/club/{slug}`)
+- Buttons: "Подробнее" → `/s/{id}`, "Записаться" (if `AllowDirectRegistration`)
+
+### `/s/{id}` — Public Session Detail (Updated)
+
+New fields added to existing page:
+- Cover image (full-width hero)
+- System badge
+- Description block
+- Duration + format
+- GM contact (always visible: Telegram username or Discord tag)
+- If `allow_direct_registration`:
+  - "Записаться" button → Telegram Mini App deeplink or Discord OAuth
+  - Direct registration into `session_participants` via `SessionCapacityRules`
+
+---
+
+## Backend
+
+### ISessionStore Methods
+
+```csharp
+Task<IReadOnlyList<ShowcaseSessionDto>> GetShowcaseSessionsAsync(
+    ShowcaseFilter filter, int page, int pageSize);
+
+Task<ShowcaseSessionDto?> GetShowcaseSessionAsync(Guid sessionId);
+
+Task<bool> RegisterFromShowcaseAsync(Guid sessionId, PlatformUser user);
+```
+
+`GetShowcaseSessionsAsync` query:
+- Cross-group (all clubs with `public_schedule_enabled = true`)
+- Only `is_public = true` sessions
+- `scheduled_at > now() - interval '4 hours'`
+- `status <> 'Cancelled'`
+- Apply filters in SQL WHERE clause
+- Order by `scheduled_at ASC`
+- Offset/limit pagination
+
+`RegisterFromShowcaseAsync`:
+- Check `allow_direct_registration = true`
+- Load session with `FOR UPDATE`
+- Count active + waitlisted participants
+- Use `SessionCapacityRules.DecideJoinStatus`
+- Insert participant with appropriate `registration_status`
+- Return true on success, false if full and no waitlist allowed
+
+---
+
+## Bot Integration
+
+### Telegram Bot
+
+During `CreateSessionCommand` flow, after title/link/time input:
+1. "Выберите систему:" inline keyboard with `GameSystem` values + "Другое"
+2. If text input instead of button: fuzzy match against display names (Levenshtein/Contains/StartsWith)
+3. "Описание игры (краткое):" — text input, optional (skip button)
+4. "Формат:" inline keyboard — "Онлайн" | "Офлайн" | "Гибрид"
+5. "Продолжительность (в часах):" — int input, optional
+6. "Обложка (URL или пропустить):" — text input, optional
+
+During `/publish` flow:
+- "Разрешить прямую запись из каталога?" — yes/no toggle (default: no)
+
+### Discord Bot
+
+Same flow adapted for Discord interactions:
+- Slash command options or button menus for system/format
+- Modal input for description, duration, cover URL
+- Fuzzy matching on free-text system input
+
+---
+
+## Migration V027
+
+```sql
+ALTER TABLE sessions
+    ADD COLUMN is_one_shot BOOLEAN NOT NULL DEFAULT false,
+    ADD COLUMN system VARCHAR(50),
+    ADD COLUMN description TEXT,
+    ADD COLUMN cover_image_url TEXT,
+    ADD COLUMN duration_minutes INTEGER,
+    ADD COLUMN format VARCHAR(20) CHECK (format IN ('Online','Offline','Hybrid')),
+    ADD COLUMN allow_direct_registration BOOLEAN NOT NULL DEFAULT false;
+
+CREATE INDEX ix_sessions_showcase
+    ON sessions (scheduled_at, system, is_one_shot, format)
+    WHERE is_public = true AND status <> 'Cancelled';
+```
+
+---
+
+## Testing Strategy
+
+1. **Unit tests:** `SessionCapacityRules` with showcase registration scenarios
+2. **Integration tests:** `GetShowcaseSessionsAsync` with each filter combination
+3. **UI tests:** `Showcase.razor` rendering with/without cover images, filters applied
+4. **Bot tests:** Fuzzy matching algorithm for `GameSystem` resolution
+
+---
+
+## Version Bump
+
+Issue label: `type:feature` → **minor bump**
+Current: `3.3.0` → Next: `3.4.0`
+
+Files to sync:
+- `Directory.Build.props`
+- `compose.yaml` (bot, discord, web image tags)
+- `.gitea/workflows/deploy.yml` (`VERSION` env)
+- `src/GmRelay.Web/Components/Layout/NavMenu.razor`
+
+---
+
+## Acceptance Criteria (from Issue #39)
+
+- [ ] User can find a published game without accessing a private dashboard
+- [ ] Registration does not bypass existing seat/waitlist limits
+- [ ] Owner/co-GM controls what appears in the showcase via `is_public` + `allow_direct_registration`
+- [ ] Filters work: date, seats, system, type, format
+- [ ] GM contact is always visible on public session detail
+- [ ] Direct registration respects `SessionCapacityRules`

src/GmRelay.Bot/Features/Sessions/CreateSession/CreateSessionHandler.cs

@@ -1,294 +1,178 @@
 using Dapper;
 using GmRelay.Shared.Domain;
-using GmRelay.Shared.Rendering;
+using GmRelay.Shared.Platform;
+using GmRelay.Bot.Infrastructure.Telegram;
 using Npgsql;
 using Telegram.Bot;
 using Telegram.Bot.Types;
-using GmRelay.Bot.Infrastructure.Telegram;
 
 namespace GmRelay.Bot.Features.Sessions.CreateSession;
 
-internal sealed record SessionCreationGroupAccessDto(Guid GroupId, bool CanManage);
-
 public sealed class CreateSessionHandler(
+    GmRelay.Shared.Features.Sessions.CreateSession.CreateSessionHandler sharedHandler,
     NpgsqlDataSource dataSource,
-    ITelegramBotClient botClient,
+    IPlatformMessenger messenger,
     ILogger<CreateSessionHandler> logger)
 {
-    public async Task HandleAsync(Message message, CancellationToken cancellationToken)
+    public async Task HandleAsync(Message message, CancellationToken ct)
     {
         var parseResult = NewSessionCommandParser.Parse(message.Text ?? message.Caption, DateTimeOffset.UtcNow);
 
         foreach (var timeInput in parseResult.PastTimeInputs)
         {
-            await botClient.SendMessage(
-                message.Chat.Id,
+            await messenger.SendGroupMessageAsync(
+                TelegramPlatformIds.Group(message.Chat.Id, null),
                 $"⚠️ Предупреждение: дата {timeInput} находится в прошлом и будет пропущена.",
-                cancellationToken: cancellationToken);
+                ct);
         }
 
         foreach (var timeInput in parseResult.InvalidTimeInputs)
         {
-            await botClient.SendMessage(
-                message.Chat.Id,
+            await messenger.SendGroupMessageAsync(
+                TelegramPlatformIds.Group(message.Chat.Id, null),
                 $"⚠️ Предупреждение: некорректный формат времени '{timeInput}'. Пропущено.",
-                cancellationToken: cancellationToken);
+                ct);
         }
 
         foreach (var seatLimitInput in parseResult.InvalidSeatLimitInputs)
         {
-            await botClient.SendMessage(
-                message.Chat.Id,
+            await messenger.SendGroupMessageAsync(
+                TelegramPlatformIds.Group(message.Chat.Id, null),
                 $"⚠️ Предупреждение: некорректный лимит мест '{seatLimitInput}'. Укажите целое число больше 0.",
-                cancellationToken: cancellationToken);
+                ct);
         }
 
         foreach (var recurringInput in parseResult.InvalidRecurringInputs)
         {
-            await botClient.SendMessage(
-                message.Chat.Id,
+            await messenger.SendGroupMessageAsync(
+                TelegramPlatformIds.Group(message.Chat.Id, null),
                 $"⚠️ Предупреждение: некорректный повтор расписания '{recurringInput}'. Укажите число игр 1-52 и шаг 1-365 дней.",
-                cancellationToken: cancellationToken);
+                ct);
         }
 
         if (!parseResult.IsValid)
         {
-            await botClient.SendMessage(
-                chatId: message.Chat.Id,
-                text: "❌ Не удалось распознать формат. Пожалуйста, используйте шаблон:\n\n/newsession\nНазвание: My Game\nВремя: 15.05.2026 19:30\nВремя: 22.05.2026 19:30\nМест: 4\nСсылка: https://link\nКартинка: https://cover\n\nДля повтора можно указать одну дату и строки:\nИгр: 4\nИнтервал: 7",
-                cancellationToken: cancellationToken);
+            await messenger.SendGroupMessageAsync(
+                TelegramPlatformIds.Group(message.Chat.Id, null),
+                """
+                ❌ Не удалось распознать формат. Пожалуйста, используйте шаблон:
+
+                /newsession
+                Название: My Game
+                Время: 15.05.2026 19:30
+                Время: 22.05.2026 19:30
+                Мест: 4
+                Ссылка: https://link
+                Картинка: https://cover
+
+                Для повтора можно указать одну дату и строки:
+                Игр: 4
+                Интервал: 7
+                """,
+                ct);
             return;
         }
 
-        var title = parseResult.Title!;
-        var link = parseResult.Link!;
         var imageReference = GetBatchImageReference(message, parseResult.ImageUrl);
         var gmId = message.From!.Id;
         var gmName = message.From.FirstName + (string.IsNullOrEmpty(message.From.LastName) ? string.Empty : $" {message.From.LastName}");
         var gmUsername = message.From.Username;
 
-        var chatId = message.Chat.Id;
-        var chatTitle = message.Chat.Title ?? "Private Chat";
+        var topicDestination = TelegramTopicRouting.ResolveNewScheduleDestination(
+            message.Chat.IsForum,
+            message.MessageThreadId);
+        var topicCreatedByBot = topicDestination.TopicCreatedByBot;
+        var messageThreadId = topicDestination.MessageThreadId;
 
-        await using var connection = await dataSource.OpenConnectionAsync(cancellationToken);
-        await using var transaction = await connection.BeginTransactionAsync(cancellationToken);
-
-        try
+        if (topicDestination.ShouldCreateForumTopic)
         {
-            await connection.ExecuteAsync(
-                """
-                INSERT INTO players (display_name, platform, external_user_id, external_username)
-                VALUES (@Name, 'Telegram', @ExternalId, @Username)
-                ON CONFLICT (platform, external_user_id)
-                WHERE platform IS NOT NULL AND external_user_id IS NOT NULL
-                DO UPDATE
-                SET display_name = EXCLUDED.display_name,
-                    external_username = EXCLUDED.external_username;
-                """,
-                new { ExternalId = gmId.ToString(), Name = gmName, Username = gmUsername },
-                transaction);
-
-            var existingGroup = await connection.QuerySingleOrDefaultAsync<SessionCreationGroupAccessDto>(
-                """
-                SELECT g.id AS GroupId,
-                       EXISTS (
-                           SELECT 1
-                           FROM group_managers gm
-                           JOIN players p ON p.id = gm.player_id
-                           WHERE gm.group_id = g.id
-                             AND p.platform = 'Telegram'
-                             AND p.external_user_id = @ExternalGmId
-                       ) AS CanManage
-                FROM game_groups g
-                WHERE g.platform = 'Telegram'
-                  AND g.external_group_id = @ExternalChatId
-                """,
-                new { ExternalChatId = chatId.ToString(), ExternalGmId = gmId.ToString() },
-                transaction);
-
-            Guid groupId;
-            if (existingGroup is null)
-            {
-                groupId = await connection.ExecuteScalarAsync<Guid>(
-                    """
-                    INSERT INTO game_groups (name, platform, external_group_id)
-                    VALUES (@ChatName, 'Telegram', @ExternalChatId)
-                    RETURNING id;
-                    """,
-                    new { ExternalChatId = chatId.ToString(), ChatName = chatTitle },
-                    transaction);
-
-                await connection.ExecuteAsync(
-                    """
-                    INSERT INTO group_managers (group_id, player_id, role)
-                    SELECT @GroupId, p.id, @OwnerRole
-                    FROM players p
-                    WHERE p.platform = 'Telegram'
-                      AND p.external_user_id = @ExternalGmId
-                    ON CONFLICT (group_id, player_id) DO NOTHING
-                    """,
-                    new { GroupId = groupId, ExternalGmId = gmId.ToString(), OwnerRole = GroupManagerRoleExtensions.OwnerValue },
-                    transaction);
-            }
-            else
-            {
-                if (!existingGroup.CanManage)
-                {
-                    await transaction.RollbackAsync(cancellationToken);
-                    await botClient.SendMessage(
-                        chatId,
-                        "⛔ Только owner или co-GM этой группы может создавать игровые сессии.",
-                        cancellationToken: cancellationToken);
-                    return;
-                }
-
-                groupId = existingGroup.GroupId;
-                await connection.ExecuteAsync(
-                    "UPDATE game_groups SET name = @ChatName WHERE id = @GroupId",
-                    new { ChatName = chatTitle, GroupId = groupId },
-                    transaction);
-            }
-
-            var topicDestination = TelegramTopicRouting.ResolveNewScheduleDestination(
-                message.Chat.IsForum,
-                message.MessageThreadId);
-            var messageThreadId = topicDestination.MessageThreadId;
-            var topicCreatedByBot = topicDestination.TopicCreatedByBot;
-            if (topicDestination.ShouldCreateForumTopic)
-            {
-                try
-                {
-                    var topic = await botClient.CreateForumTopic(
-                        chatId: chatId,
-                        name: $"🎲 Игры: {title}",
-                        cancellationToken: cancellationToken);
-                    messageThreadId = topic.MessageThreadId;
-                }
-                catch (Telegram.Bot.Exceptions.ApiRequestException ex)
-                    when (TelegramTopicRouting.IsMissingForumTopicRightsError(ex.Message))
-                {
-                    await transaction.RollbackAsync(cancellationToken);
-                    await botClient.SendMessage(
-                        chatId,
-                        TelegramTopicRouting.MissingForumTopicRightsMessage,
-                        cancellationToken: cancellationToken);
-                    return;
-                }
-            }
-
-            var batchId = Guid.NewGuid();
-            var sessions = new List<SessionBatchDto>();
-
-            foreach (var scheduledAt in parseResult.ScheduledTimes.OrderBy(value => value))
-            {
-                var sessionId = await connection.ExecuteScalarAsync<Guid>(
-                    """
-                    INSERT INTO sessions (batch_id, group_id, title, join_link, scheduled_at, status, thread_id, topic_created_by_bot, max_players)
-                    VALUES (@BatchId, @GroupId, @Title, @Link, @ScheduledAt, @Status, @ThreadId, @TopicCreatedByBot, @MaxPlayers)
-                    RETURNING id;
-                    """,
-                    new
-                    {
-                        BatchId = batchId,
-                        GroupId = groupId,
-                        Title = title,
-                        Link = link,
-                        ScheduledAt = scheduledAt,
-                        ThreadId = messageThreadId,
-                        TopicCreatedByBot = topicCreatedByBot,
-                        MaxPlayers = parseResult.MaxPlayers,
-                        Status = SessionStatus.Planned
-                    },
-                    transaction);
-
-                sessions.Add(new SessionBatchDto(sessionId, scheduledAt.UtcDateTime, SessionStatus.Planned, parseResult.MaxPlayers, link));
-            }
-
-            await transaction.CommitAsync(cancellationToken);
-            logger.LogInformation("Создан батч {BatchId} с {Count} сессиями в группе {GroupId}", batchId, sessions.Count, groupId);
-
-            var view = SessionBatchViewBuilder.Build(title, sessions, Array.Empty<ParticipantBatchDto>());
-            var renderResult = TelegramSessionBatchRenderer.Render(view);
-
-            Message batchMessage;
-
-            if (imageReference is not null && renderResult.Text.Length <= 1024)
-            {
-                // Картинка + расписание умещаются в одном Telegram-фото с подписью
-                try
-                {
-                    batchMessage = await botClient.SendPhoto(
-                        chatId: chatId,
-                        messageThreadId: messageThreadId,
-                        photo: InputFile.FromString(imageReference),
-                        caption: renderResult.Text,
-                        parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
-                        replyMarkup: renderResult.Markup,
-                        cancellationToken: cancellationToken);
-                }
-                catch (Exception ex)
-                {
-                    logger.LogWarning(ex, "Не удалось отправить картинку для батча {BatchId}, отправляем текстом", batchId);
-                    batchMessage = await botClient.SendMessage(
-                        chatId: chatId,
-                        messageThreadId: messageThreadId,
-                        text: renderResult.Text,
-                        parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
-                        replyMarkup: renderResult.Markup,
-                        cancellationToken: cancellationToken);
-                }
-            }
-            else
-            {
-                // Текст слишком длинный для caption — fallback на два сообщения
-                if (imageReference is not null)
-                {
-                    try
-                    {
-                        await botClient.SendPhoto(
-                            chatId: chatId,
-                            messageThreadId: messageThreadId,
-                            photo: InputFile.FromString(imageReference),
-                            caption: $"🎲 {System.Net.WebUtility.HtmlEncode(title)}",
-                            parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
-                            cancellationToken: cancellationToken);
-                    }
-                    catch (Exception ex)
-                    {
-                        logger.LogWarning(ex, "Не удалось отправить картинку для батча {BatchId}", batchId);
-                    }
-                }
-
-                batchMessage = await botClient.SendMessage(
-                    chatId: chatId,
-                    messageThreadId: messageThreadId,
-                    text: renderResult.Text,
-                    parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
-                    replyMarkup: renderResult.Markup,
-                    cancellationToken: cancellationToken);
-            }
-
-            await connection.ExecuteAsync(
-                "UPDATE sessions SET batch_message_id = @MsgId WHERE batch_id = @BatchId",
-                new { MsgId = batchMessage.MessageId, BatchId = batchId });
-
             try
             {
-                await botClient.DeleteMessage(
-                    chatId: chatId,
-                    messageId: message.MessageId,
-                    cancellationToken: cancellationToken);
+                var topicRef = await messenger.CreateThreadAsync(
+                    TelegramPlatformIds.Group(message.Chat.Id, null),
+                    $"🎲 Игры: {parseResult.Title}",
+                    ct);
+                messageThreadId = int.Parse(topicRef.ExternalThreadId!, System.Globalization.CultureInfo.InvariantCulture);
             }
             catch (Exception ex)
+                when (ex.Message.Contains("not enough rights") ||
+                      ex.Message.Contains("CHAT_ADMIN_REQUIRED") ||
+                      ex.Message.Contains("not an administrator"))
             {
-                logger.LogWarning(ex, "Не удалось удалить исходное сообщение {MessageId} в чате {ChatId}", message.MessageId, chatId);
+                await messenger.SendGroupMessageAsync(
+                    TelegramPlatformIds.Group(message.Chat.Id, null),
+                    TelegramTopicRouting.MissingForumTopicRightsMessage,
+                    ct);
+                return;
             }
         }
+
+        var platformGroup = TelegramPlatformIds.Group(message.Chat.Id, messageThreadId, message.Chat.Title ?? "Private Chat");
+        var platformUser = new PlatformUser(
+            PlatformKind.Telegram,
+            gmId.ToString(System.Globalization.CultureInfo.InvariantCulture),
+            gmName,
+            gmUsername);
+
+        var command = new GmRelay.Shared.Features.Sessions.CreateSession.CreateSessionCommand(
+            platformUser,
+            platformGroup,
+            parseResult.Title!,
+            parseResult.Link!,
+            parseResult.ScheduledTimes,
+            parseResult.MaxPlayers,
+            imageReference);
+
+        GmRelay.Shared.Features.Sessions.CreateSession.CreateSessionResult result;
+        try
+        {
+            result = await sharedHandler.HandleAsync(command, ct);
+        }
+        catch
+        {
+            await messenger.SendGroupMessageAsync(
+                TelegramPlatformIds.Group(message.Chat.Id, null),
+                "💥 Произошла ошибка базы данных при создании сессии.",
+                ct);
+            throw;
+        }
+
+        if (!result.Success)
+        {
+            await messenger.SendGroupMessageAsync(
+                TelegramPlatformIds.Group(message.Chat.Id, null),
+                result.ErrorMessage!,
+                ct);
+            return;
+        }
+
+        var scheduleMessage = new PlatformScheduleMessage(
+            platformGroup,
+            result.View!,
+            null,
+            imageReference);
+
+        var sentMessageRef = await messenger.SendScheduleAsync(scheduleMessage, ct);
+
+        // Store batch_message_id
+        if (int.TryParse(sentMessageRef.ExternalMessageId, System.Globalization.NumberStyles.Integer, System.Globalization.CultureInfo.InvariantCulture, out var batchMessageId))
+        {
+            await using var connection = await dataSource.OpenConnectionAsync(ct);
+            await connection.ExecuteAsync(
+                "UPDATE sessions SET batch_message_id = @MsgId WHERE batch_id = @BatchId",
+                new { MsgId = batchMessageId, BatchId = result.BatchId });
+        }
+
+        // Delete original message
+        try
+        {
+            await messenger.DeleteMessageAsync(
+                TelegramPlatformIds.Message(message.Chat.Id, null, message.MessageId),
+                ct);
+        }
         catch (Exception ex)
         {
-            logger.LogError(ex, "Ошибка при создании сессии");
-            await transaction.RollbackAsync(cancellationToken);
-            await botClient.SendMessage(chatId, "💥 Произошла ошибка базы данных при создании сессии.", cancellationToken: cancellationToken);
+            logger.LogWarning(ex, "Не удалось удалить исходное сообщение {MessageId} в чате {ChatId}", message.MessageId, message.Chat.Id);
         }
     }
 

src/GmRelay.Bot/Features/Sessions/ExportCalendar/ExportCalendarHandler.cs

@@ -1,114 +1,25 @@
-using System.Text;
-using Dapper;
-using GmRelay.Bot.Infrastructure.Telegram;
-using GmRelay.Shared.Domain;
 using GmRelay.Shared.Platform;
-using Microsoft.Extensions.Configuration;
-using Npgsql;
 using Telegram.Bot.Types;
 
 namespace GmRelay.Bot.Features.Sessions.ExportCalendar;
 
-internal sealed record CalendarSessionDto(Guid Id, string Title, DateTime ScheduledAt);
-
 public sealed class ExportCalendarHandler(
-    NpgsqlDataSource dataSource,
-    IPlatformMessenger messenger,
-    IConfiguration configuration)
+    GmRelay.Shared.Features.Sessions.ExportCalendar.ExportCalendarHandler sharedHandler)
 {
-    public async Task HandleAsync(Message message, CancellationToken cancellationToken)
+    public Task HandleAsync(Message message, CancellationToken cancellationToken)
     {
-        await using var connection = await dataSource.OpenConnectionAsync(cancellationToken);
+        var command = new GmRelay.Shared.Features.Sessions.ExportCalendar.ExportCalendarCommand(
+            new PlatformGroup(
+                PlatformKind.Telegram,
+                message.Chat.Id.ToString(),
+                message.Chat.Title ?? "Private Chat",
+                message.MessageThreadId?.ToString()),
+            new PlatformUser(
+                PlatformKind.Telegram,
+                message.From?.Id.ToString() ?? string.Empty,
+                message.From?.FirstName ?? string.Empty,
+                message.From?.Username));
 
-        var sessions = await connection.QueryAsync<CalendarSessionDto>(
-            @"SELECT s.id as Id, s.title as Title, s.scheduled_at as ScheduledAt"
-            + " FROM sessions s"
-            + " JOIN game_groups g ON s.group_id = g.id"
-            + " WHERE g.platform = 'Telegram'"
-            + " AND g.external_group_id = @ExternalChatId"
-            + " AND s.status = @Planned"
-            + " AND s.scheduled_at > NOW()"
-            + " ORDER BY s.scheduled_at ASC",
-            new { ExternalChatId = message.Chat.Id.ToString(), Planned = SessionStatus.Planned });
-
-        var sessionsList = sessions.ToList();
-
-        if (sessionsList.Count == 0)
-        {
-            await messenger.SendGroupMessageAsync(
-                TelegramPlatformIds.Group(message.Chat.Id, message.MessageThreadId),
-                "📭 У этой группы нет запланированных сессий для экспорта.",
-                cancellationToken);
-            return;
-        }
-
-        var sb = new StringBuilder();
-        sb.AppendLine("BEGIN:VCALENDAR");
-        sb.AppendLine("VERSION:2.0");
-        sb.AppendLine("PRODID:-//GM-Relay//TTRPG Schedule//EN");
-
-        foreach (var s in sessionsList)
-        {
-            var dtStart = s.ScheduledAt.ToString("yyyyMMddTHHmmssZ");
-            var dtEnd = s.ScheduledAt.AddHours(4).ToString("yyyyMMddTHHmmssZ");
-
-            sb.AppendLine("BEGIN:VEVENT");
-            sb.AppendLine($"UID:{s.Id}@gmrelay");
-            sb.AppendLine($"DTSTAMP:{DateTime.UtcNow:yyyyMMddTHHmmssZ}");
-            sb.AppendLine($"DTSTART:{dtStart}");
-            sb.AppendLine($"DTEND:{dtEnd}");
-            sb.AppendLine($"SUMMARY:{s.Title}");
-            sb.AppendLine("END:VEVENT");
-        }
-
-        sb.AppendLine("END:VCALENDAR");
-
-        var bytes = Encoding.UTF8.GetBytes(sb.ToString());
-
-
-        // Create calendar subscription
-        string? subscriptionUrl = null;
-        var baseUrl = configuration["Web:BaseUrl"];
-        var senderId = message.From?.Id;
-        if (!string.IsNullOrWhiteSpace(baseUrl) && senderId.HasValue)
-        {
-            try
-            {
-                var token = Guid.NewGuid().ToString("N");
-                var groupId = await connection.QueryFirstOrDefaultAsync<Guid?>(
-                    @"SELECT id FROM game_groups WHERE platform = 'Telegram' AND external_group_id = @ExternalChatId",
-                    new { ExternalChatId = message.Chat.Id.ToString() });
-
-                await connection.ExecuteAsync(
-                    @"INSERT INTO calendar_subscriptions (id, token, user_platform, user_external_id, group_id, filter_type, created_at, expires_at)
-                      VALUES (gen_random_uuid(), @token, 'Telegram', @userExternalId, @groupId, @filterType, now(), NULL)",
-                    new { token, userExternalId = senderId.Value.ToString(), groupId, filterType = (int)CalendarSubscriptionFilter.SpecificGroup });
-
-                subscriptionUrl = $"{baseUrl.TrimEnd('/')}/calendar/{token}.ics";
-            }
-            catch
-            {
-                // Non-critical: if subscription creation fails, still send the file
-            }
-        }
-
-        var actions = subscriptionUrl is not null
-            ? new[]
-            {
-                new PlatformMessageAction(
-                    "calendar-subscription",
-                    "🔗 Подписаться на календарь",
-                    subscriptionUrl)
-            }
-            : Array.Empty<PlatformMessageAction>();
-
-        await messenger.SendCalendarFileAsync(
-            new PlatformCalendarFile(
-                TelegramPlatformIds.Group(message.Chat.Id, message.MessageThreadId),
-                "schedule.ics",
-                bytes,
-                "📅 <b>Ваш календарь игр!</b>\nОткройте файл на устройстве, чтобы добавить события в свой календарь.",
-                actions),
-            cancellationToken);
+        return sharedHandler.HandleAsync(command, cancellationToken);
     }
 }

src/GmRelay.Bot/Features/Sessions/ListSessions/DeleteSessionHandler.cs

@@ -1,8 +1,5 @@
-using Dapper;
-using Npgsql;
-using Telegram.Bot;
 using GmRelay.Bot.Infrastructure.Telegram;
-using GmRelay.Shared.Domain;
+using GmRelay.Shared.Platform;
 
 namespace GmRelay.Bot.Features.Sessions.ListSessions;
 
@@ -13,143 +10,88 @@ public sealed record DeleteSessionCommand(
     long ChatId,
     int MessageId);
 
-internal sealed record DeleteSessionInfoDto(
-    string Title,
-    Guid BatchId,
-    Guid GroupId,
-    bool CanManage,
-    int? ThreadId,
-    bool TopicCreatedByBot);
-
 public sealed class DeleteSessionHandler(
-    NpgsqlDataSource dataSource,
-    ITelegramBotClient bot,
+    GmRelay.Shared.Features.Sessions.ListSessions.DeleteSessionHandler sharedHandler,
+    GmRelay.Shared.Features.Sessions.ListSessions.ListSessionsHandler listSessionsHandler,
+    IPlatformMessenger messenger,
     ILogger<DeleteSessionHandler> logger)
 {
     public async Task HandleAsync(DeleteSessionCommand command, CancellationToken ct)
     {
-        await using var connection = await dataSource.OpenConnectionAsync(ct);
-        await using var transaction = await connection.BeginTransactionAsync(ct);
+        var platformUser = new PlatformUser(
+            PlatformKind.Telegram,
+            command.TelegramUserId.ToString(),
+            string.Empty,
+            null);
 
-        // 1. Fetch session and verify group manager.
-        var session = await connection.QuerySingleOrDefaultAsync<DeleteSessionInfoDto>(
-            """
-            SELECT s.title AS Title,
-                   s.batch_id AS BatchId,
-                   s.group_id AS GroupId,
-                   s.thread_id AS ThreadId,
-                   s.topic_created_by_bot AS TopicCreatedByBot,
-                   EXISTS (
-                       SELECT 1
-                       FROM group_managers gm
-                       JOIN players p ON p.id = gm.player_id
-                       WHERE gm.group_id = s.group_id
-                         AND p.platform = 'Telegram'
-                       AND p.external_user_id = @ExternalUserId
-                   ) AS CanManage
-            FROM sessions s
-            WHERE s.id = @SessionId
-            """,
-            new { command.SessionId, ExternalUserId = command.TelegramUserId.ToString() }, transaction);
+        var platformGroup = new PlatformGroup(
+            PlatformKind.Telegram,
+            command.ChatId.ToString(),
+            string.Empty);
 
-        if (session == null)
+        var scheduleMessage = TelegramPlatformIds.Message(command.ChatId, null, command.MessageId);
+
+        var sharedCommand = new GmRelay.Shared.Features.Sessions.ListSessions.DeleteSessionCommand(
+            command.SessionId,
+            platformUser,
+            platformGroup,
+            scheduleMessage);
+
+        var result = await sharedHandler.HandleAsync(sharedCommand, ct);
+
+        if (!result.Success)
         {
-            await bot.AnswerCallbackQuery(command.CallbackQueryId, "Сессия не найдена.", cancellationToken: ct);
+            await messenger.AnswerInteractionAsync(
+                new PlatformInteractionReply(command.CallbackQueryId, result.ReplyText!, result.ReplyText!.Contains("owner")),
+                ct);
             return;
         }
 
-        if (!session.CanManage)
-        {
-            await bot.AnswerCallbackQuery(command.CallbackQueryId, "Только owner или co-GM может удалять сессию.", showAlert: true, cancellationToken: ct);
-            return;
-        }
-
-        // 2. Delete session
-        await connection.ExecuteAsync("DELETE FROM sessions WHERE id = @Id", new { Id = command.SessionId }, transaction);
-
-        var remainingInTopic = session.ThreadId.HasValue
-            ? await connection.ExecuteScalarAsync<int>(
-                """
-                SELECT COUNT(*)
-                FROM sessions
-                WHERE group_id = @GroupId
-                  AND thread_id = @ThreadId
-                """,
-                new { session.GroupId, ThreadId = session.ThreadId.Value },
-                transaction)
-            : 0;
-
-        await transaction.CommitAsync(ct);
-
         // 4. If no sessions are left in a bot-owned forum topic, delete the topic.
-        if (session.ThreadId.HasValue &&
-            TelegramTopicRouting.ShouldDeleteForumTopic(session.TopicCreatedByBot, remainingInTopic))
+        if (result.ThreadId.HasValue &&
+            TelegramTopicRouting.ShouldDeleteForumTopic(result.TopicCreatedByBot, result.RemainingInTopic))
         {
             try
             {
-                await bot.DeleteForumTopic(command.ChatId, session.ThreadId.Value, cancellationToken: ct);
-                logger.LogInformation("Deleted forum topic {ThreadId} for batch {BatchId} as no sessions remained.", session.ThreadId.Value, session.BatchId);
+                await messenger.DeleteThreadAsync(
+                    new PlatformGroup(PlatformKind.Telegram, command.ChatId.ToString(), string.Empty, null, result.ThreadId.Value.ToString(System.Globalization.CultureInfo.InvariantCulture)),
+                    ct);
+                logger.LogInformation("Deleted forum topic {ThreadId} for batch {BatchId} as no sessions remained.", result.ThreadId.Value, result.GroupId);
             }
             catch (Exception ex)
             {
-                logger.LogWarning(ex, "Failed to delete forum topic {ThreadId}", session.ThreadId.Value);
+                logger.LogWarning(ex, "Failed to delete forum topic {ThreadId}", result.ThreadId.Value);
             }
         }
 
-        await bot.AnswerCallbackQuery(command.CallbackQueryId, "Сессия удалена!", cancellationToken: ct);
+        await messenger.AnswerInteractionAsync(
+            new PlatformInteractionReply(command.CallbackQueryId, result.ReplyText!),
+            ct);
 
-        // 5. Update the /listsessions message (we delete the message or edit it to remove the button)
-        // A simple way is to re-render the list:
-        await using var readConnection = await dataSource.OpenConnectionAsync(ct);
-        var sessions = await readConnection.QueryAsync<SessionListItemDto>(
-            @"SELECT s.id as Id, s.title as Title, s.scheduled_at as ScheduledAt, s.status as Status, s.max_players as MaxPlayers,
-                     COUNT(sp.id) FILTER (WHERE sp.is_gm = false AND sp.registration_status = @Active) as PlayerCount,
-                     COUNT(sp.id) FILTER (WHERE sp.is_gm = false AND sp.registration_status = @Waitlisted) as WaitlistCount,
-                     EXISTS (
-                         SELECT 1
-                         FROM group_managers gm
-                         JOIN players manager_player ON manager_player.id = gm.player_id
-                         WHERE gm.group_id = s.group_id
-                           AND manager_player.platform = 'Telegram'
-                           AND manager_player.external_user_id = @ExternalUserId
-                     ) AS CanManage
-              FROM sessions s
-              JOIN game_groups g ON s.group_id = g.id
-              LEFT JOIN session_participants sp ON s.id = sp.session_id
-              WHERE g.platform = 'Telegram'
-                AND g.external_group_id = @ExternalChatId
-                AND s.status != @Cancelled
-                AND s.scheduled_at > NOW()
-              GROUP BY s.id, s.title, s.scheduled_at, s.status, s.max_players, s.group_id
-              ORDER BY s.scheduled_at ASC",
-            new
-            {
-                ExternalChatId = command.ChatId.ToString(),
-                ExternalUserId = command.TelegramUserId.ToString(),
-                Cancelled = SessionStatus.Cancelled,
-                Active = ParticipantRegistrationStatus.Active,
-                Waitlisted = ParticipantRegistrationStatus.Waitlisted
-            });
+        // 5. Update the /listsessions message
+        var listCommand = new GmRelay.Shared.Features.Sessions.ListSessions.ListSessionsCommand(platformGroup, platformUser);
+        var listResult = await listSessionsHandler.HandleAsync(listCommand, ct);
 
-        var sessionsList = sessions.ToList();
-
-        if (sessionsList.Count == 0)
+        if (listResult.Sessions.Count == 0)
         {
-            try { await bot.EditMessageText(command.ChatId, command.MessageId, "📭 В этой группе нет предстоящих игр.", cancellationToken: ct); } catch { }
+            try
+            {
+                await messenger.UpdateGroupMessageAsync(
+                    scheduleMessage,
+                    "📭 В этой группе нет предстоящих игр.",
+                    [],
+                    ct);
+            }
+            catch { }
             return;
         }
 
-        var renderResult = SessionListMessageRenderer.Render(sessionsList);
+        var text = SessionListMessageRenderer.RenderText(listResult.Sessions);
+        var actions = listResult.CanManage ? SessionListMessageRenderer.RenderActions(listResult.Sessions) : [];
 
         try
         {
-            await bot.EditMessageText(
-                command.ChatId,
-                command.MessageId,
-                renderResult.Text,
-                parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
-                replyMarkup: renderResult.Markup,
-                cancellationToken: ct);
+            await messenger.UpdateGroupMessageAsync(scheduleMessage, text, actions, ct);
         }
         catch (Exception ex)
         {

src/GmRelay.Bot/Features/Sessions/ListSessions/ListSessionsHandler.cs

@@ -1,118 +1,37 @@
-using Dapper;
-using GmRelay.Shared.Domain;
-using Npgsql;
-using Telegram.Bot;
+using GmRelay.Shared.Platform;
 using Telegram.Bot.Types;
-using Telegram.Bot.Types.ReplyMarkups;
 
 namespace GmRelay.Bot.Features.Sessions.ListSessions;
 
-internal sealed record SessionListItemDto(Guid Id, string Title, DateTime ScheduledAt, string Status, int? MaxPlayers, int PlayerCount, int WaitlistCount, bool CanManage);
-
-internal static class SessionListMessageRenderer
-{
-    public static (string Text, InlineKeyboardMarkup? Markup) Render(IReadOnlyList<SessionListItemDto> sessions)
-    {
-        var text = "📅 <b>Ближайшие игры:</b>\n\n";
-        foreach (var session in sessions)
-        {
-            var seats = session.MaxPlayers.HasValue
-                ? $"{session.PlayerCount}/{session.MaxPlayers.Value}"
-                : session.PlayerCount.ToString(System.Globalization.CultureInfo.InvariantCulture);
-            var waitlist = session.WaitlistCount > 0 ? $", ожидание: {session.WaitlistCount}" : string.Empty;
-            text += $"🔹 <b>{session.ScheduledAt.FormatMoscow()}</b> — {System.Net.WebUtility.HtmlEncode(session.Title)} (Места: {seats}{waitlist})\n";
-        }
-
-        var canManage = sessions.Count > 0 && sessions.First().CanManage;
-        if (!canManage)
-        {
-            return (text, null);
-        }
-
-        var buttons = new List<InlineKeyboardButton[]>();
-        foreach (var session in sessions)
-        {
-            var dateTitle = session.ScheduledAt.FormatMoscowShort();
-            buttons.Add(
-            [
-                InlineKeyboardButton.WithCallbackData($"❌ {dateTitle}", $"cancel_session:{session.Id}"),
-                InlineKeyboardButton.WithCallbackData($"⏰ {dateTitle}", $"reschedule_session:{session.Id}")
-            ]);
-
-            if (SessionCapacityRules.CanPromoteWaitlistedPlayer(session.MaxPlayers, session.PlayerCount, session.WaitlistCount))
-            {
-                buttons.Add(
-                [
-                    InlineKeyboardButton.WithCallbackData($"⬆️ Из ожидания {dateTitle}", $"promote_waitlist:{session.Id}")
-                ]);
-            }
-
-            buttons.Add(
-            [
-                InlineKeyboardButton.WithCallbackData($"🗑 Удалить {dateTitle}", $"delete_session:{session.Id}")
-            ]);
-        }
-
-        return (text, new InlineKeyboardMarkup(buttons));
-    }
-}
-
 public sealed class ListSessionsHandler(
-    NpgsqlDataSource dataSource,
-    ITelegramBotClient botClient)
+    GmRelay.Shared.Features.Sessions.ListSessions.ListSessionsHandler sharedHandler,
+    IPlatformMessenger messenger)
 {
     public async Task HandleAsync(Message message, CancellationToken cancellationToken)
     {
-        await using var connection = await dataSource.OpenConnectionAsync(cancellationToken);
+        var command = new GmRelay.Shared.Features.Sessions.ListSessions.ListSessionsCommand(
+            new PlatformGroup(
+                PlatformKind.Telegram,
+                message.Chat.Id.ToString(),
+                message.Chat.Title ?? "Private Chat",
+                message.MessageThreadId?.ToString()),
+            new PlatformUser(
+                PlatformKind.Telegram,
+                message.From?.Id.ToString() ?? string.Empty,
+                message.From?.FirstName ?? string.Empty,
+                message.From?.Username));
 
-        var sessions = await connection.QueryAsync<SessionListItemDto>(
-            @"SELECT s.id as Id, s.title as Title, s.scheduled_at as ScheduledAt, s.status as Status, s.max_players as MaxPlayers,
-                     COUNT(sp.id) FILTER (WHERE sp.is_gm = false AND sp.registration_status = @Active) as PlayerCount,
-                     COUNT(sp.id) FILTER (WHERE sp.is_gm = false AND sp.registration_status = @Waitlisted) as WaitlistCount,
-                     EXISTS (
-                         SELECT 1
-                         FROM group_managers gm
-                         JOIN players manager_player ON manager_player.id = gm.player_id
-                         WHERE gm.group_id = s.group_id
-                           AND manager_player.platform = 'Telegram'
-                           AND manager_player.external_user_id = @ExternalUserId
-                     ) AS CanManage
-              FROM sessions s
-              JOIN game_groups g ON s.group_id = g.id
-              LEFT JOIN session_participants sp ON s.id = sp.session_id
-              WHERE g.platform = 'Telegram'
-                AND g.external_group_id = @ExternalChatId
-                AND s.status != @Cancelled
-                AND s.scheduled_at > NOW()
-              GROUP BY s.id, s.title, s.scheduled_at, s.status, s.max_players, s.group_id
-              ORDER BY s.scheduled_at ASC",
-            new
-            {
-                ExternalChatId = message.Chat.Id.ToString(),
-                ExternalUserId = message.From?.Id.ToString(),
-                Cancelled = SessionStatus.Cancelled,
-                Active = ParticipantRegistrationStatus.Active,
-                Waitlisted = ParticipantRegistrationStatus.Waitlisted
-            });
+        var result = await sharedHandler.HandleAsync(command, cancellationToken);
 
-        var sessionsList = sessions.ToList();
-
-        if (sessionsList.Count == 0)
+        if (result.Sessions.Count == 0)
         {
-            await botClient.SendMessage(
-                chatId: message.Chat.Id,
-                text: "📭 В этой группе нет предстоящих игр.",
-                cancellationToken: cancellationToken);
+            await messenger.SendGroupMessageAsync(command.Group, "📭 В этой группе нет предстоящих игр.", cancellationToken);
             return;
         }
 
-        var renderResult = SessionListMessageRenderer.Render(sessionsList);
+        var text = SessionListMessageRenderer.RenderText(result.Sessions);
+        var actions = result.CanManage ? SessionListMessageRenderer.RenderActions(result.Sessions) : [];
 
-        await botClient.SendMessage(
-            chatId: message.Chat.Id,
-            text: renderResult.Text,
-            parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
-            replyMarkup: renderResult.Markup,
-            cancellationToken: cancellationToken);
+        await messenger.SendGroupMessageAsync(command.Group, text, actions, cancellationToken);
     }
 }

src/GmRelay.Bot/Features/Sessions/ListSessions/SessionListMessageRenderer.cs

@@ -0,0 +1,63 @@
+using GmRelay.Shared.Domain;
+using GmRelay.Shared.Platform;
+using GmRelay.Shared.Features.Sessions.ListSessions;
+
+namespace GmRelay.Bot.Features.Sessions.ListSessions;
+
+internal static class SessionListMessageRenderer
+{
+    public static string RenderText(IReadOnlyList<SessionListItemDto> sessions)
+    {
+        var text = "📅 <b>Ближайшие игры:</b>\n\n";
+        foreach (var session in sessions)
+        {
+            var seats = session.MaxPlayers.HasValue
+                ? $"{session.PlayerCount}/{session.MaxPlayers.Value}"
+                : session.PlayerCount.ToString(System.Globalization.CultureInfo.InvariantCulture);
+            var waitlist = session.WaitlistCount > 0 ? $", ожидание: {session.WaitlistCount}" : string.Empty;
+            text += $"🔹 <b>{session.ScheduledAt.FormatMoscow()}</b> — {System.Net.WebUtility.HtmlEncode(session.Title)} (Места: {seats}{waitlist})\n";
+        }
+
+        return text;
+    }
+
+    public static IReadOnlyList<PlatformMessageAction> RenderActions(IReadOnlyList<SessionListItemDto> sessions)
+    {
+        if (sessions.Count == 0 || !sessions.First().CanManage)
+        {
+            return [];
+        }
+
+        var actions = new List<PlatformMessageAction>();
+
+        foreach (var session in sessions)
+        {
+            var dateTitle = session.ScheduledAt.FormatMoscowShort();
+
+            actions.Add(new PlatformMessageAction(
+                $"cancel_session:{session.Id}",
+                $"❌ {dateTitle}",
+                $"cancel_session:{session.Id}"));
+
+            actions.Add(new PlatformMessageAction(
+                $"reschedule_session:{session.Id}",
+                $"⏰ {dateTitle}",
+                $"reschedule_session:{session.Id}"));
+
+            if (SessionCapacityRules.CanPromoteWaitlistedPlayer(session.MaxPlayers, session.PlayerCount, session.WaitlistCount))
+            {
+                actions.Add(new PlatformMessageAction(
+                    $"promote_waitlist:{session.Id}",
+                    $"⬆️ Из ожидания {dateTitle}",
+                    $"promote_waitlist:{session.Id}"));
+            }
+
+            actions.Add(new PlatformMessageAction(
+                $"delete_session:{session.Id}",
+                $"🗑 Удалить {dateTitle}",
+                $"delete_session:{session.Id}"));
+        }
+
+        return actions;
+    }
+}

src/GmRelay.Bot/Features/Sessions/RescheduleSession/HandleRescheduleTimeInputHandler.cs

@@ -12,243 +12,156 @@ using GmRelay.Bot.Infrastructure.Telegram;
 
 namespace GmRelay.Bot.Features.Sessions.RescheduleSession;
 
-// ── DTOs ─────────────────────────────────────────────────────────────
-
-internal sealed record AwaitingProposalDto(
-    Guid Id, Guid SessionId, string Title, DateTime CurrentScheduledAt,
-    Guid BatchId, int? BatchMessageId, long TelegramChatId, int? ThreadId, string NotificationMode);
-
-// ── Handler ──────────────────────────────────────────────────────────
-
 /// <summary>
-/// Handles text input from the GM who has an AwaitingTime proposal.
-/// Parses reschedule options with a voting deadline, creates a voting message,
-/// and tags all participants.
-/// If no participants are registered, reschedules immediately.
+/// Telegram adapter for reschedule time input.
+/// Delegates core logic to the shared handler, then performs Telegram-specific
+/// message sending, DM notifications, vote_message_id storage, and cleanup.
 /// </summary>
 public sealed class HandleRescheduleTimeInputHandler(
+    GmRelay.Shared.Features.Sessions.RescheduleSession.HandleRescheduleTimeInputHandler sharedHandler,
     NpgsqlDataSource dataSource,
     ITelegramBotClient bot,
     IPlatformMessenger messenger,
     DirectSessionNotificationSender directSender,
     ILogger<HandleRescheduleTimeInputHandler> logger)
 {
-    /// <summary>
-    /// Attempts to handle a text message as reschedule time input.
-    /// Returns true if it was handled (i.e. user had an AwaitingTime proposal).
-    /// </summary>
     public async Task<bool> TryHandleAsync(Message message, CancellationToken ct)
     {
         if (message.From is null || string.IsNullOrWhiteSpace(message.Text))
             return false;
 
-        var gmTelegramId = message.From.Id;
-        var chatId = message.Chat.Id;
-        var text = message.Text.Trim();
+        var command = new GmRelay.Shared.Features.Sessions.RescheduleSession.HandleRescheduleTimeInputCommand(
+            new PlatformUser(
+                PlatformKind.Telegram,
+                message.From.Id.ToString(),
+                message.From.FirstName + (string.IsNullOrEmpty(message.From.LastName) ? "" : $" {message.From.LastName}"),
+                message.From.Username),
+            TelegramPlatformIds.Group(message.Chat.Id, message.MessageThreadId, message.Chat.Title),
+            message.Text.Trim());
 
-        await using var connection = await dataSource.OpenConnectionAsync(ct);
-
-        // 1. Check if this GM has an AwaitingTime proposal in this chat
-        var proposal = await connection.QuerySingleOrDefaultAsync<AwaitingProposalDto>(
-            """
-            SELECT rp.id AS Id, rp.session_id AS SessionId, s.title AS Title, s.scheduled_at AS CurrentScheduledAt,
-                   s.batch_id AS BatchId, s.batch_message_id AS BatchMessageId,
-                   g.external_group_id::BIGINT AS TelegramChatId,
-                   s.thread_id AS ThreadId,
-                   s.notification_mode AS NotificationMode
-            FROM reschedule_proposals rp
-            JOIN sessions s ON s.id = rp.session_id
-            JOIN game_groups g ON g.id = s.group_id
-            WHERE rp.proposed_by_external_user_id = @ExternalGmId
-              AND rp.status = 'AwaitingTime'
-              AND g.platform = 'Telegram'
-              AND g.external_group_id = @ExternalChatId
-              AND EXISTS (
-                  SELECT 1
-                  FROM group_managers gm
-                  JOIN players manager_player ON manager_player.id = gm.player_id
-                  WHERE gm.group_id = s.group_id
-                    AND manager_player.platform = 'Telegram'
-                    AND manager_player.external_user_id = @ExternalGmId
-              )
-            ORDER BY rp.created_at DESC
-            LIMIT 1
-            """,
-            new { ExternalGmId = gmTelegramId.ToString(), ExternalChatId = chatId.ToString() });
-
-        if (proposal is null)
+        var result = await sharedHandler.HandleAsync(command, ct);
+        if (!result.Handled)
             return false;
 
-        // 2. Parse voting input
-        if (!RescheduleVotingInput.TryParse(text, DateTimeOffset.UtcNow, out var votingInput, out var parseError))
+        if (!string.IsNullOrEmpty(result.ReplyText) && !result.IsRescheduledImmediately)
         {
             await messenger.SendGroupMessageAsync(
-                TelegramPlatformIds.Group(chatId, proposal.ThreadId),
-                $"⚠️ {parseError}\n\nИспользуйте формат:\n<code>25.04.2026 19:30\n26.04.2026 18:00\nДедлайн: 25.04.2026 12:00</code>",
+                command.Group,
+                $"""⚠️ {result.ReplyText}\n\nИспользуйте формат:\n<code>25.04.2026 19:30\n26.04.2026 18:00\nДедлайн: 25.04.2026 12:00</code>""",
                 ct);
             return true;
         }
 
-        // 3. Load participants (non-GM) signed up for this session
-        var participants = (await connection.QueryAsync<VoteParticipantDto>(
-            """
-            SELECT p.id AS PlayerId,
-                   p.display_name AS DisplayName,
-                   p.external_username AS TelegramUsername,
-                   p.external_user_id::BIGINT AS TelegramId
-            FROM session_participants sp
-            JOIN players p ON p.id = sp.player_id
-            WHERE sp.session_id = @SessionId
-              AND sp.is_gm = false
-              AND sp.registration_status = @Active
-            """,
-            new { proposal.SessionId, Active = ParticipantRegistrationStatus.Active })).ToList();
-
-        // 4. If no participants — reschedule immediately
-        if (participants.Count == 0)
+        if (result.IsRescheduledImmediately)
         {
-            await RescheduleImmediately(connection, proposal, votingInput.Options[0], chatId, ct);
-            await TryDeleteMessage(chatId, message.MessageId, ct);
+            if (result.UpdatedView is not null && result.BatchMessageId.HasValue)
+            {
+                await TryUpdateBatchMessage(
+                    command.Group,
+                    result.UpdatedView,
+                    TelegramPlatformIds.Message(message.Chat.Id, message.MessageThreadId, result.BatchMessageId.Value),
+                    ct);
+            }
+
+            await messenger.SendGroupMessageAsync(command.Group, result.ReplyText!, ct);
+            await TryDeleteMessage(message.Chat.Id, message.MessageId, ct);
             return true;
         }
 
-        // 5. Create voting message
-        await using var transaction = await connection.BeginTransactionAsync(ct);
-        var options = votingInput.Options
-            .Select((proposedAt, index) => new RescheduleOptionDto(
-                Guid.NewGuid(),
-                index + 1,
-                proposedAt))
-            .ToList();
-
-        await connection.ExecuteAsync(
-            """
-            UPDATE reschedule_proposals
-            SET voting_deadline_at = @Deadline, status = 'Voting', vote_chat_id = @ChatId
-            WHERE id = @Id
-            """,
-            new { votingInput.Deadline, ChatId = chatId, Id = proposal.Id },
-            transaction);
-
-        foreach (var option in options)
-        {
-            await connection.ExecuteAsync(
-                """
-                INSERT INTO reschedule_options (id, proposal_id, proposed_at, display_order)
-                VALUES (@OptionId, @ProposalId, @ProposedAt, @DisplayOrder)
-                """,
-                new
-                {
-                    option.OptionId,
-                    ProposalId = proposal.Id,
-                    option.ProposedAt,
-                    option.DisplayOrder
-                },
-                transaction);
-        }
-
-        await transaction.CommitAsync(ct);
-
+        // Voting mode
         var voteText = BuildVotingMessage(
-            proposal.Title,
-            proposal.CurrentScheduledAt,
-            votingInput.Deadline,
-            options,
-            participants,
+            result.Title!,
+            result.CurrentScheduledAt,
+            result.VotingDeadlineAt!.Value,
+            result.Options,
+            result.Participants,
             []);
-        var keyboard = BuildVotingKeyboard(options);
+
+        var keyboard = BuildVotingKeyboard(result.Options);
 
         var voteMsg = await bot.SendMessage(
-            chatId: chatId,
-            messageThreadId: proposal.ThreadId,
+            chatId: message.Chat.Id,
+            messageThreadId: message.MessageThreadId,
             text: voteText,
             parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
             replyMarkup: keyboard,
             cancellationToken: ct);
 
-        var mode = SessionNotificationModeExtensions.FromDatabaseValue(proposal.NotificationMode);
+        var mode = await GetNotificationModeAsync(result.ProposalId!.Value, ct);
         if (mode.ShouldSendDirectMessages())
         {
             var optionsText = string.Join(
                 "\n",
-                options.Select(option => $"{option.DisplayOrder}. <b>{option.ProposedAt.FormatMoscow()}</b> (МСК)"));
+                result.Options.Select(option => $"{option.DisplayOrder}. <b>{option.ProposedAt.FormatMoscow()}</b> (МСК)"));
             var directText = $"""
                 🔄 <b>Голосование за перенос сессии</b>
 
-                📌 <b>{System.Net.WebUtility.HtmlEncode(proposal.Title)}</b>
-                📅 Текущее время: <b>{proposal.CurrentScheduledAt.FormatMoscow()}</b> (МСК)
+                📌 <b>{System.Net.WebUtility.HtmlEncode(result.Title)}</b>
+                📅 Текущее время: <b>{result.CurrentScheduledAt.FormatMoscow()}</b> (МСК)
                 🗳 Варианты:
                 {optionsText}
 
-                ⏳ Дедлайн: <b>{votingInput.Deadline.FormatMoscow()}</b> (МСК)
+                ⏳ Дедлайн: <b>{result.VotingDeadlineAt.Value.FormatMoscow()}</b> (МСК)
 
                 Проголосуйте кнопкой в групповом сообщении.
                 """;
 
             await directSender.SendAsync(
-                participants.Select(p => new DirectNotificationRecipient(
+                result.Participants.Select(p => new DirectNotificationRecipient(
                     p.TelegramId,
                     p.DisplayName)),
                 directText,
                 "reschedule-vote",
-                proposal.SessionId,
+                result.ProposalId.Value,
                 ct);
         }
 
-        // Store vote message ID
+        await using var connection = await dataSource.OpenConnectionAsync(ct);
         await connection.ExecuteAsync(
             "UPDATE reschedule_proposals SET vote_message_id = @MsgId WHERE id = @Id",
-            new { MsgId = voteMsg.MessageId, Id = proposal.Id });
+            new { MsgId = voteMsg.MessageId, Id = result.ProposalId.Value });
 
         logger.LogInformation(
             "Reschedule voting started for session {SessionId}, proposal {ProposalId}, options {OptionCount}, deadline {Deadline}",
-            proposal.SessionId,
-            proposal.Id,
-            options.Count,
-            votingInput.Deadline);
-
-        // Delete GM's time input message
-        await TryDeleteMessage(chatId, message.MessageId, ct);
+            result.ProposalId.Value,
+            result.ProposalId.Value,
+            result.Options.Count,
+            result.VotingDeadlineAt.Value);
 
+        await TryDeleteMessage(message.Chat.Id, message.MessageId, ct);
         return true;
     }
 
-    private async Task RescheduleImmediately(
-        NpgsqlConnection connection, AwaitingProposalDto proposal,
-        DateTimeOffset newTime, long chatId, CancellationToken ct)
+    private async Task<SessionNotificationMode> GetNotificationModeAsync(Guid proposalId, CancellationToken ct)
     {
-        await using var transaction = await connection.BeginTransactionAsync(ct);
-
-        await connection.ExecuteAsync(
+        await using var connection = await dataSource.OpenConnectionAsync(ct);
+        var raw = await connection.QuerySingleOrDefaultAsync<string?>(
             """
-            UPDATE sessions
-            SET scheduled_at = @NewTime,
-                status = @Status,
-                confirmation_message_id = NULL,
-                confirmation_sent_at = NULL,
-                one_hour_reminder_processed_at = NULL,
-                updated_at = now()
-            WHERE id = @SessionId
+            SELECT s.notification_mode
+            FROM sessions s
+            JOIN reschedule_proposals rp ON rp.session_id = s.id
+            WHERE rp.id = @Id
             """,
-            new { NewTime = newTime, proposal.SessionId, Status = SessionStatus.Planned },
-            transaction);
+            new { Id = proposalId });
+        return SessionNotificationModeExtensions.FromDatabaseValue(raw ?? string.Empty);
+    }
 
-        await connection.ExecuteAsync(
-            "UPDATE reschedule_proposals SET proposed_at = @NewTime, status = 'Approved' WHERE id = @Id",
-            new { NewTime = newTime, Id = proposal.Id },
-            transaction);
-
-        await transaction.CommitAsync(ct);
-
-        await messenger.SendGroupMessageAsync(
-            TelegramPlatformIds.Group(chatId, proposal.ThreadId),
-            $"✅ Сессия «{proposal.Title}» перенесена!\n\n📅 Новое время: <b>{newTime.ToOffset(TimeSpan.FromHours(3)).ToString("d MMMM yyyy, HH:mm", System.Globalization.CultureInfo.GetCultureInfo("ru-RU"))}</b> (МСК)\n\n<i>Участников нет — голосование не требуется.</i>",
-            ct);
-
-        // Re-render batch message with updated time
-        await TryUpdateBatchMessage(proposal, ct);
-
-        logger.LogInformation("Session {SessionId} rescheduled immediately (no participants)", proposal.SessionId);
+    private async Task TryUpdateBatchMessage(
+        PlatformGroup group,
+        SessionBatchViewModel view,
+        PlatformMessageRef scheduleMessage,
+        CancellationToken ct)
+    {
+        try
+        {
+            await messenger.UpdateScheduleAsync(
+                new PlatformScheduleMessage(group, view, scheduleMessage),
+                ct);
+        }
+        catch (Exception ex)
+        {
+            logger.LogWarning(ex, "Failed to update batch message after immediate reschedule");
+        }
     }
 
     internal static string BuildVotingMessage(
@@ -270,7 +183,7 @@ public sealed class HandleRescheduleTimeInputHandler(
 
         var lines = new List<string>
         {
-            $"🔄 <b>Перенос сессии «{System.Net.WebUtility.HtmlEncode(title)}»</b>",
+            $"""🔄 <b>Перенос сессии «{System.Net.WebUtility.HtmlEncode(title)}»</b>""",
             "",
             $"📅 Текущее время: <b>{currentTime.FormatMoscow()}</b> (МСК)",
             $"⏳ Дедлайн: <b>{deadline.FormatMoscow()}</b> (МСК)",
@@ -351,52 +264,6 @@ public sealed class HandleRescheduleTimeInputHandler(
             "dd.MM HH:mm",
             System.Globalization.CultureInfo.InvariantCulture);
 
-    private async Task TryUpdateBatchMessage(AwaitingProposalDto proposal, CancellationToken ct)
-    {
-        try
-        {
-            await using var conn = await dataSource.OpenConnectionAsync(ct);
-
-            var batchSessions = (await conn.QueryAsync<SessionBatchDto>(
-                "SELECT id AS SessionId, scheduled_at AS ScheduledAt, status AS Status, max_players AS MaxPlayers, join_link AS JoinLink FROM sessions WHERE batch_id = @BatchId ORDER BY scheduled_at",
-                new { proposal.BatchId })).ToList();
-
-            var batchParticipants = (await conn.QueryAsync<ParticipantBatchDto>(
-                """
-                SELECT sp.session_id AS SessionId,
-                       p.display_name AS DisplayName,
-                       p.external_username AS TelegramUsername,
-                       sp.registration_status AS RegistrationStatus
-                FROM session_participants sp
-                JOIN players p ON sp.player_id = p.id
-                JOIN sessions s ON sp.session_id = s.id
-                WHERE s.batch_id = @BatchId AND sp.is_gm = false
-                ORDER BY sp.registration_status ASC, sp.created_at ASC, sp.responded_at ASC, p.created_at ASC
-                """,
-                new { proposal.BatchId })).ToList();
-
-            if (proposal.BatchMessageId.HasValue)
-            {
-                var view = SessionBatchViewBuilder.Build(proposal.Title, batchSessions, batchParticipants);
-
-                await messenger.UpdateScheduleAsync(
-                    new PlatformScheduleMessage(
-                        TelegramPlatformIds.Group(proposal.TelegramChatId, proposal.ThreadId),
-                        view,
-                        TelegramPlatformIds.Message(proposal.TelegramChatId, proposal.ThreadId, proposal.BatchMessageId.Value)),
-                    ct);
-            }
-            else
-            {
-                logger.LogWarning("No batch_message_id stored for session {SessionId}, cannot edit batch message in-place", proposal.SessionId);
-            }
-        }
-        catch (Exception ex)
-        {
-            logger.LogWarning(ex, "Failed to update batch message after immediate reschedule for session {SessionId}", proposal.SessionId);
-        }
-    }
-
     private async Task TryDeleteMessage(long chatId, int messageId, CancellationToken ct)
     {
         try

src/GmRelay.Bot/Features/Sessions/RescheduleSession/HandleRescheduleVoteHandler.cs

@@ -1,8 +1,7 @@
-using Dapper;
+using GmRelay.Bot.Infrastructure.Telegram;
 using GmRelay.Shared.Domain;
 using GmRelay.Shared.Features.Sessions.RescheduleSession;
 using GmRelay.Shared.Platform;
-using Npgsql;
 using Telegram.Bot;
 
 namespace GmRelay.Bot.Features.Sessions.RescheduleSession;
@@ -15,131 +14,49 @@ public sealed record HandleRescheduleVoteCommand(
     int MessageId);
 
 public sealed class HandleRescheduleVoteHandler(
-    NpgsqlDataSource dataSource,
+    GmRelay.Shared.Features.Sessions.RescheduleSession.HandleRescheduleVoteHandler sharedHandler,
     ITelegramBotClient bot,
     IPlatformMessenger messenger,
     ILogger<HandleRescheduleVoteHandler> logger)
 {
     public async Task HandleAsync(HandleRescheduleVoteCommand command, CancellationToken ct)
     {
-        await using var connection = await dataSource.OpenConnectionAsync(ct);
-        await using var transaction = await connection.BeginTransactionAsync(ct);
+        var platformUser = new PlatformUser(
+            PlatformKind.Telegram,
+            command.TelegramUserId.ToString(),
+            string.Empty,
+            null);
 
-        var proposal = await connection.QuerySingleOrDefaultAsync<VoteProposalDto>(
-            """
-            SELECT rp.id AS Id,
-                   rp.session_id AS SessionId,
-                   rp.voting_deadline_at AS VotingDeadlineAt,
-                   s.title AS Title,
-                   s.scheduled_at AS CurrentScheduledAt
-            FROM reschedule_options ro
-            JOIN reschedule_proposals rp ON rp.id = ro.proposal_id
-            JOIN sessions s ON s.id = rp.session_id
-            WHERE ro.id = @OptionId AND rp.status = 'Voting'
-            """,
-            new { command.OptionId },
-            transaction);
+        var platformGroup = new PlatformGroup(
+            PlatformKind.Telegram,
+            command.ChatId.ToString(),
+            string.Empty);
 
-        if (proposal is null)
+        var sharedCommand = new GmRelay.Shared.Features.Sessions.RescheduleSession.HandleRescheduleVoteCommand(
+            command.OptionId,
+            platformUser,
+            platformGroup,
+            command.CallbackQueryId,
+            TelegramPlatformIds.Message(command.ChatId, null, command.MessageId));
+
+        var result = await sharedHandler.HandleAsync(sharedCommand, ct);
+
+        if (!result.Success)
         {
-            await AnswerAsync(command.CallbackQueryId, "Голосование уже завершено или не найдено.", ct);
+            await messenger.AnswerInteractionAsync(
+                new PlatformInteractionReply(command.CallbackQueryId, result.ReplyText!, result.ReplyText!.Contains("дедлайн")),
+                ct);
             return;
         }
 
-        if (proposal.VotingDeadlineAt <= DateTimeOffset.UtcNow)
-        {
-            await AnswerAsync(command.CallbackQueryId, "Дедлайн уже прошёл. Результаты скоро будут применены.", ct, showAlert: true);
-            return;
-        }
-
-        var playerId = await connection.ExecuteScalarAsync<Guid?>(
-            """
-            SELECT p.id
-            FROM session_participants sp
-            JOIN players p ON p.id = sp.player_id
-            WHERE sp.session_id = @SessionId
-              AND p.platform = 'Telegram'
-              AND p.external_user_id = @ExternalUserId
-              AND sp.is_gm = false
-              AND sp.registration_status = @Active
-            """,
-            new { proposal.SessionId, ExternalUserId = command.TelegramUserId.ToString(), Active = ParticipantRegistrationStatus.Active },
-            transaction);
-
-        if (playerId is null)
-        {
-            await AnswerAsync(command.CallbackQueryId, "Вы не являетесь участником этой сессии.", ct);
-            return;
-        }
-
-        await connection.ExecuteAsync(
-            """
-            INSERT INTO reschedule_option_votes (proposal_id, player_id, option_id)
-            VALUES (@ProposalId, @PlayerId, @OptionId)
-            ON CONFLICT (proposal_id, player_id) DO UPDATE
-            SET option_id = EXCLUDED.option_id,
-                voted_at = now()
-            """,
-            new
-            {
-                ProposalId = proposal.Id,
-                PlayerId = playerId.Value,
-                command.OptionId
-            },
-            transaction);
-
-        var participants = (await connection.QueryAsync<VoteParticipantDto>(
-            """
-            SELECT p.id AS PlayerId,
-                   p.display_name AS DisplayName,
-                   p.external_username AS TelegramUsername,
-                   p.external_user_id::BIGINT AS TelegramId
-            FROM session_participants sp
-            JOIN players p ON p.id = sp.player_id
-            WHERE sp.session_id = @SessionId
-              AND sp.is_gm = false
-              AND sp.registration_status = @Active
-            ORDER BY p.display_name
-            """,
-            new { proposal.SessionId, Active = ParticipantRegistrationStatus.Active },
-            transaction)).ToList();
-
-        var options = (await connection.QueryAsync<RescheduleOptionDto>(
-            """
-            SELECT id AS OptionId,
-                   display_order AS DisplayOrder,
-                   proposed_at AS ProposedAt
-            FROM reschedule_options
-            WHERE proposal_id = @ProposalId
-            ORDER BY display_order
-            """,
-            new { ProposalId = proposal.Id },
-            transaction)).ToList();
-
-        var votes = (await connection.QueryAsync<RescheduleOptionVoteDto>(
-            """
-            SELECT rov.option_id AS OptionId,
-                   p.id AS PlayerId,
-                   p.display_name AS DisplayName,
-                   p.external_username AS TelegramUsername
-            FROM reschedule_option_votes rov
-            JOIN players p ON p.id = rov.player_id
-            WHERE rov.proposal_id = @ProposalId
-            ORDER BY rov.voted_at, p.display_name
-            """,
-            new { ProposalId = proposal.Id },
-            transaction)).ToList();
-
-        await transaction.CommitAsync(ct);
-
         var voteText = HandleRescheduleTimeInputHandler.BuildVotingMessage(
-            proposal.Title,
-            proposal.CurrentScheduledAt,
-            proposal.VotingDeadlineAt,
-            options,
-            participants,
-            votes);
-        var keyboard = HandleRescheduleTimeInputHandler.BuildVotingKeyboard(options);
+            result.Title!,
+            result.CurrentScheduledAt,
+            result.VotingDeadlineAt,
+            result.Options,
+            result.Participants,
+            result.Votes);
+        var keyboard = HandleRescheduleTimeInputHandler.BuildVotingKeyboard(result.Options);
 
         try
         {
@@ -153,12 +70,11 @@ public sealed class HandleRescheduleVoteHandler(
         }
         catch (Exception ex)
         {
-            logger.LogWarning(ex, "Failed to update reschedule vote message for proposal {ProposalId}", proposal.Id);
+            logger.LogWarning(ex, "Failed to update reschedule vote message for proposal {ProposalId}", result.ProposalId);
         }
 
-        await AnswerAsync(command.CallbackQueryId, "Ваш голос учтён. До дедлайна его можно изменить.", ct);
+        await messenger.AnswerInteractionAsync(
+            new PlatformInteractionReply(command.CallbackQueryId, result.ReplyText!),
+            ct);
     }
-
-    private Task AnswerAsync(string callbackQueryId, string text, CancellationToken ct, bool showAlert = false) =>
-        messenger.AnswerInteractionAsync(new PlatformInteractionReply(callbackQueryId, text, showAlert), ct);
 }

src/GmRelay.Bot/Infrastructure/Telegram/TelegramPlatformMessenger.cs

@@ -95,6 +95,68 @@ public sealed class TelegramPlatformMessenger(
             cancellationToken: ct);
     }
 
+    public async Task SendGroupMessageAsync(PlatformGroup group, string htmlText, IReadOnlyList<PlatformMessageAction> actions, CancellationToken ct)
+    {
+        EnsureTelegram(group.Platform);
+        await bot.SendMessage(
+            chatId: ParseLong(group.ExternalGroupId),
+            messageThreadId: ParseNullableInt(group.ExternalThreadId),
+            text: htmlText,
+            parseMode: ParseMode.Html,
+            replyMarkup: BuildActionsMarkup(actions),
+            cancellationToken: ct);
+    }
+
+    public async Task UpdateGroupMessageAsync(PlatformMessageRef messageRef, string htmlText, IReadOnlyList<PlatformMessageAction> actions, CancellationToken ct)
+    {
+        EnsureTelegram(messageRef.Platform);
+        await bot.EditMessageText(
+            chatId: ParseLong(messageRef.ExternalGroupId),
+            messageId: ParseInt(messageRef.ExternalMessageId),
+            text: htmlText,
+            parseMode: ParseMode.Html,
+            replyMarkup: BuildActionsMarkup(actions),
+            cancellationToken: ct);
+    }
+
+    public async Task<PlatformMessageRef> CreateThreadAsync(PlatformGroup group, string title, CancellationToken ct)
+    {
+        EnsureTelegram(group.Platform);
+        var topic = await bot.CreateForumTopic(
+            chatId: ParseLong(group.ExternalGroupId),
+            name: title,
+            cancellationToken: ct);
+
+        return new PlatformMessageRef(
+            PlatformKind.Telegram,
+            group.ExternalGroupId,
+            topic.MessageThreadId.ToString(CultureInfo.InvariantCulture),
+            string.Empty);
+    }
+
+    public Task DeleteThreadAsync(PlatformGroup group, CancellationToken ct)
+    {
+        EnsureTelegram(group.Platform);
+        if (string.IsNullOrWhiteSpace(group.ExternalThreadId))
+        {
+            return Task.CompletedTask;
+        }
+
+        return bot.DeleteForumTopic(
+            ParseLong(group.ExternalGroupId),
+            ParseInt(group.ExternalThreadId),
+            cancellationToken: ct);
+    }
+
+    public Task DeleteMessageAsync(PlatformMessageRef messageRef, CancellationToken ct)
+    {
+        EnsureTelegram(messageRef.Platform);
+        return bot.DeleteMessage(
+            ParseLong(messageRef.ExternalGroupId),
+            ParseInt(messageRef.ExternalMessageId),
+            cancellationToken: ct);
+    }
+
     public Task SendPrivateMessageAsync(PlatformPrivateMessage message, CancellationToken ct)
     {
         EnsureTelegram(message.Recipient.Platform);

src/GmRelay.Bot/Infrastructure/Telegram/UpdateRouter.cs

@@ -5,6 +5,9 @@ using GmRelay.Shared.Features.Sessions.CreateSession;
 using GmRelay.Shared.Rendering;
 using GmRelay.Bot.Features.Sessions.CreateSession;
 using GmRelay.Bot.Features.Sessions.ListSessions;
+using BotCreateSessionHandler = GmRelay.Bot.Features.Sessions.CreateSession.CreateSessionHandler;
+using BotRescheduleTimeInputHandler = GmRelay.Bot.Features.Sessions.RescheduleSession.HandleRescheduleTimeInputHandler;
+using BotRescheduleVoteHandler = GmRelay.Bot.Features.Sessions.RescheduleSession.HandleRescheduleVoteHandler;
 using GmRelay.Bot.Features.Sessions.ExportCalendar;
 using GmRelay.Bot.Features.Sessions.RescheduleSession;
 using Telegram.Bot;
@@ -20,7 +23,7 @@ namespace GmRelay.Bot.Infrastructure.Telegram;
 /// </summary>
 public sealed class UpdateRouter(
     HandleRsvpHandler rsvpHandler,
-    CreateSessionHandler createSessionHandler,
+    BotCreateSessionHandler createSessionHandler,
     JoinSessionHandler joinSessionHandler,
     LeaveSessionHandler leaveSessionHandler,
     PromoteWaitlistedPlayerHandler promoteWaitlistedPlayerHandler,
@@ -29,8 +32,8 @@ public sealed class UpdateRouter(
     ListSessionsHandler listSessionsHandler,
     ExportCalendarHandler exportCalendarHandler,
     InitiateRescheduleHandler initiateRescheduleHandler,
-    HandleRescheduleTimeInputHandler rescheduleTimeInputHandler,
-    HandleRescheduleVoteHandler rescheduleVoteHandler,
+    BotRescheduleTimeInputHandler rescheduleTimeInputHandler,
+    BotRescheduleVoteHandler rescheduleVoteHandler,
     ITelegramBotClient bot,
     IConfiguration configuration,
     ILogger<UpdateRouter> logger) : ITelegramUpdateHandler

src/GmRelay.Bot/Migrations/V026__add_public_club_pages.sql

@@ -0,0 +1,17 @@
+-- Public club pages and read-only schedule publication controls.
+
+ALTER TABLE game_groups
+    ADD COLUMN public_slug VARCHAR(120),
+    ADD COLUMN public_schedule_enabled BOOLEAN NOT NULL DEFAULT false,
+    ADD COLUMN public_schedule_updated_at TIMESTAMPTZ;
+
+ALTER TABLE sessions
+    ADD COLUMN is_public BOOLEAN NOT NULL DEFAULT false;
+
+CREATE UNIQUE INDEX ux_game_groups_public_slug
+    ON game_groups (lower(public_slug))
+    WHERE public_slug IS NOT NULL;
+
+CREATE INDEX ix_sessions_public_schedule
+    ON sessions (group_id, scheduled_at)
+    WHERE is_public = true AND status <> 'Cancelled';

src/GmRelay.Bot/Migrations/V027__add_showcase_fields.sql

@@ -0,0 +1,14 @@
+-- Showcase fields for game catalog / public session browsing.
+
+ALTER TABLE sessions
+    ADD COLUMN is_one_shot BOOLEAN NOT NULL DEFAULT false,
+    ADD COLUMN system VARCHAR(50),
+    ADD COLUMN description TEXT,
+    ADD COLUMN cover_image_url TEXT,
+    ADD COLUMN duration_minutes INTEGER,
+    ADD COLUMN format VARCHAR(20) CHECK (format IN ('Online', 'Offline', 'Hybrid')),
+    ADD COLUMN allow_direct_registration BOOLEAN NOT NULL DEFAULT false;
+
+CREATE INDEX ix_sessions_showcase
+    ON sessions (scheduled_at, system, is_one_shot, format)
+    WHERE is_public = true AND status <> 'Cancelled';

src/GmRelay.Bot/Migrations/V028__add_master_profiles.sql

@@ -0,0 +1,20 @@
+-- Public GM profiles for catalog and club trust pages.
+
+CREATE TABLE master_profiles (
+    id            UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    player_id     UUID NOT NULL UNIQUE REFERENCES players(id) ON DELETE CASCADE,
+    public_slug   VARCHAR(120),
+    is_public     BOOLEAN NOT NULL DEFAULT false,
+    display_name  VARCHAR(255) NOT NULL,
+    bio           TEXT,
+    created_at    TIMESTAMPTZ NOT NULL DEFAULT now(),
+    updated_at    TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE UNIQUE INDEX ux_master_profiles_public_slug
+    ON master_profiles (lower(public_slug))
+    WHERE public_slug IS NOT NULL;
+
+CREATE INDEX ix_master_profiles_public
+    ON master_profiles (lower(public_slug))
+    WHERE is_public = true AND public_slug IS NOT NULL;

src/GmRelay.Bot/Program.cs

@@ -66,18 +66,24 @@ builder.Services.AddSingleton<SendJoinLinkHandler>();
 builder.Services.AddSingleton<ISendJoinLinkHandler>(sp => sp.GetRequiredService<SendJoinLinkHandler>());
 builder.Services.AddSingleton<SendOneHourReminderHandler>();
 builder.Services.AddSingleton<ISendOneHourReminderHandler>(sp => sp.GetRequiredService<SendOneHourReminderHandler>());
-builder.Services.AddSingleton<CreateSessionHandler>();
+builder.Services.AddSingleton<GmRelay.Shared.Features.Sessions.CreateSession.CreateSessionHandler>();
+builder.Services.AddSingleton<GmRelay.Bot.Features.Sessions.CreateSession.CreateSessionHandler>();
 builder.Services.AddSingleton<IScheduleMessageUpdateLock, ScheduleMessageUpdateLock>();
 builder.Services.AddSingleton<JoinSessionHandler>();
 builder.Services.AddSingleton<LeaveSessionHandler>();
 builder.Services.AddSingleton<PromoteWaitlistedPlayerHandler>();
 builder.Services.AddSingleton<CancelSessionHandler>();
+builder.Services.AddSingleton<GmRelay.Shared.Features.Sessions.ListSessions.DeleteSessionHandler>();
 builder.Services.AddSingleton<GmRelay.Bot.Features.Sessions.ListSessions.DeleteSessionHandler>();
+builder.Services.AddSingleton<GmRelay.Shared.Features.Sessions.ListSessions.ListSessionsHandler>();
 builder.Services.AddSingleton<GmRelay.Bot.Features.Sessions.ListSessions.ListSessionsHandler>();
+builder.Services.AddSingleton<GmRelay.Shared.Features.Sessions.ExportCalendar.ExportCalendarHandler>();
 builder.Services.AddSingleton<GmRelay.Bot.Features.Sessions.ExportCalendar.ExportCalendarHandler>();
 builder.Services.AddSingleton<InitiateRescheduleHandler>();
-builder.Services.AddSingleton<HandleRescheduleTimeInputHandler>();
-builder.Services.AddSingleton<HandleRescheduleVoteHandler>();
+builder.Services.AddSingleton<GmRelay.Shared.Features.Sessions.RescheduleSession.HandleRescheduleTimeInputHandler>();
+builder.Services.AddSingleton<GmRelay.Bot.Features.Sessions.RescheduleSession.HandleRescheduleTimeInputHandler>();
+builder.Services.AddSingleton<GmRelay.Shared.Features.Sessions.RescheduleSession.HandleRescheduleVoteHandler>();
+builder.Services.AddSingleton<GmRelay.Bot.Features.Sessions.RescheduleSession.HandleRescheduleVoteHandler>();
 builder.Services.AddSingleton<RescheduleVotingFinalizer>();
 
 builder.Services.AddSingleton<DirectSessionNotificationSender>();

src/GmRelay.DiscordBot/Features/Sessions/DiscordNewSessionHandler.cs

@@ -75,7 +75,9 @@ public sealed class DiscordNewSessionHandler(
               FROM group_managers gm
               JOIN players p ON p.id = gm.player_id
               JOIN game_groups g ON g.id = gm.group_id
-              WHERE g.platform = 'Discord' AND g.external_group_id = @GuildId",
+              WHERE g.platform = 'Discord'
+                AND p.platform = 'Discord'
+                AND g.external_group_id = @GuildId",
             new { GuildId = guildId });
 
         if (!permissionChecker.CanManageSchedule(guildOwnerId, userId, dbManagerUserIds, resolvedPermissions))

src/GmRelay.DiscordBot/Features/Sessions/DiscordRescheduleVoteHandler.cs

@@ -1,114 +1,46 @@
-namespace GmRelay.DiscordBot.Features.Sessions;
-
-using Dapper;
 using GmRelay.DiscordBot.Rendering;
-using GmRelay.Shared.Domain;
 using GmRelay.Shared.Features.Sessions.RescheduleSession;
 using GmRelay.Shared.Platform;
-using Npgsql;
 using NetCord.Rest;
 
+namespace GmRelay.DiscordBot.Features.Sessions;
+
 public sealed record DiscordRescheduleVoteInput(
-    Guid OptionId, ulong UserId, string InteractionId,
-    string GuildId, string ChannelId, string MessageId);
+    Guid OptionId,
+    ulong UserId,
+    string InteractionId,
+    string GuildId,
+    string ChannelId,
+    string MessageId);
 
 public sealed class DiscordRescheduleVoteHandler(
-    NpgsqlDataSource dataSource,
+    GmRelay.Shared.Features.Sessions.RescheduleSession.HandleRescheduleVoteHandler sharedHandler,
     RestClient restClient,
     ILogger<DiscordRescheduleVoteHandler> logger)
 {
     public async Task<string> HandleAsync(DiscordRescheduleVoteInput input, CancellationToken ct)
     {
-        await using var connection = await dataSource.OpenConnectionAsync(ct);
-        await using var transaction = await connection.BeginTransactionAsync(ct);
+        var command = new HandleRescheduleVoteCommand(
+            input.OptionId,
+            new PlatformUser(PlatformKind.Discord, input.UserId.ToString(), string.Empty, null),
+            new PlatformGroup(PlatformKind.Discord, input.GuildId, string.Empty, input.ChannelId),
+            input.InteractionId,
+            new PlatformMessageRef(PlatformKind.Discord, input.ChannelId, null, input.MessageId));
 
-        // 1. Load proposal + option
-        var proposal = await connection.QuerySingleOrDefaultAsync<VoteProposalDto>(
-            """
-            SELECT rp.id AS Id, rp.session_id AS SessionId, rp.voting_deadline_at AS VotingDeadlineAt,
-                   s.title AS Title, s.scheduled_at AS CurrentScheduledAt
-            FROM reschedule_options ro
-            JOIN reschedule_proposals rp ON rp.id = ro.proposal_id
-            JOIN sessions s ON s.id = rp.session_id
-            WHERE ro.id = @OptionId AND rp.status = 'Voting'
-            """,
-            new { input.OptionId },
-            transaction);
+        var result = await sharedHandler.HandleAsync(command, ct);
 
-        if (proposal is null)
-            return "Голосование уже завершено или не найдено.";
+        if (!result.Success)
+        {
+            return result.ReplyText!;
+        }
 
-        if (proposal.VotingDeadlineAt <= DateTimeOffset.UtcNow)
-            return "Дедлайн уже прошёл. Результаты скоро будут применены.";
-
-        // 2. Verify participant (Discord platform)
-        var playerId = await connection.ExecuteScalarAsync<Guid?>(
-            """
-            SELECT p.id
-            FROM session_participants sp
-            JOIN players p ON p.id = sp.player_id
-            WHERE sp.session_id = @SessionId
-              AND p.platform = 'Discord'
-              AND p.external_user_id = @UserId
-              AND sp.is_gm = false
-              AND sp.registration_status = @Active
-            """,
-            new { proposal.SessionId, UserId = input.UserId.ToString(), Active = ParticipantRegistrationStatus.Active },
-            transaction);
-
-        if (playerId is null)
-            return "Вы не являетесь участником этой сессии.";
-
-        // 3. Upsert vote
-        await connection.ExecuteAsync(
-            """
-            INSERT INTO reschedule_option_votes (proposal_id, player_id, option_id)
-            VALUES (@ProposalId, @PlayerId, @OptionId)
-            ON CONFLICT (proposal_id, player_id) DO UPDATE
-            SET option_id = EXCLUDED.option_id, voted_at = now()
-            """,
-            new { ProposalId = proposal.Id, PlayerId = playerId.Value, input.OptionId },
-            transaction);
-
-        // 4. Reload participants, options, votes for re-rendering
-        var participants = (await connection.QueryAsync<VoteParticipantDto>(
-            """
-            SELECT p.id AS PlayerId, p.display_name AS DisplayName, p.external_username AS TelegramUsername, 0 AS TelegramId
-            FROM session_participants sp
-            JOIN players p ON p.id = sp.player_id
-            WHERE sp.session_id = @SessionId AND sp.is_gm = false AND sp.registration_status = @Active
-            ORDER BY p.display_name
-            """,
-            new { proposal.SessionId, Active = ParticipantRegistrationStatus.Active },
-            transaction)).ToList();
-
-        var options = (await connection.QueryAsync<RescheduleOptionDto>(
-            """
-            SELECT id AS OptionId, display_order AS DisplayOrder, proposed_at AS ProposedAt
-            FROM reschedule_options
-            WHERE proposal_id = @ProposalId
-            ORDER BY display_order
-            """,
-            new { ProposalId = proposal.Id },
-            transaction)).ToList();
-
-        var votes = (await connection.QueryAsync<RescheduleOptionVoteDto>(
-            """
-            SELECT rov.option_id AS OptionId, p.id AS PlayerId, p.display_name AS DisplayName, p.external_username AS TelegramUsername
-            FROM reschedule_option_votes rov
-            JOIN players p ON p.id = rov.player_id
-            WHERE rov.proposal_id = @ProposalId
-            ORDER BY rov.voted_at, p.display_name
-            """,
-            new { ProposalId = proposal.Id },
-            transaction)).ToList();
-
-        await transaction.CommitAsync(ct);
-
-        // 5. Re-render and update Discord vote message
         var (embed, actionRow) = DiscordRescheduleVotingRenderer.Render(
-            proposal.Title, proposal.CurrentScheduledAt, proposal.VotingDeadlineAt,
-            options, participants, votes);
+            result.Title!,
+            result.CurrentScheduledAt,
+            result.VotingDeadlineAt,
+            result.Options,
+            result.Participants,
+            result.Votes);
 
         var channelIdUlong = ulong.Parse(input.ChannelId);
         var messageIdUlong = ulong.Parse(input.MessageId);
@@ -123,9 +55,9 @@ public sealed class DiscordRescheduleVoteHandler(
         }
         catch (Exception ex)
         {
-            logger.LogWarning(ex, "Failed to update Discord vote message for proposal {ProposalId}", proposal.Id);
+            logger.LogWarning(ex, "Failed to update Discord vote message for proposal {ProposalId}", result.ProposalId);
         }
 
-        return "Ваш голос учтён. До дедлайна его можно изменить.";
+        return result.ReplyText!;
     }
 }

src/GmRelay.DiscordBot/Infrastructure/Discord/DiscordPlatformMessenger.cs

@@ -77,6 +77,38 @@ public sealed class DiscordPlatformMessenger : IPlatformMessenger
         await restClient.SendMessageAsync(GetChannelId(group), htmlText);
     }
 
+    public async Task SendGroupMessageAsync(PlatformGroup group, string htmlText, IReadOnlyList<PlatformMessageAction> actions, CancellationToken ct)
+    {
+        var rows = BuildActionRows(actions);
+        await restClient.SendMessageAsync(GetChannelId(group), new MessageProperties().WithContent(htmlText).WithComponents(rows));
+    }
+
+    public async Task UpdateGroupMessageAsync(PlatformMessageRef messageRef, string htmlText, IReadOnlyList<PlatformMessageAction> actions, CancellationToken ct)
+    {
+        var channelId = GetChannelId(new PlatformGroup(messageRef.Platform, messageRef.ExternalGroupId, string.Empty, messageRef.ExternalThreadId));
+        var messageId = ParseSnowflake(messageRef.ExternalMessageId);
+        var rows = BuildActionRows(actions);
+        await restClient.ModifyMessageAsync(channelId, messageId, options =>
+        {
+            options.Content = htmlText;
+            options.Components = rows;
+        });
+    }
+
+    public Task<PlatformMessageRef> CreateThreadAsync(PlatformGroup group, string title, CancellationToken ct)
+    {
+        // Discord thread creation is not implemented in this adapter
+        return Task.FromResult(new PlatformMessageRef(PlatformKind.Discord, group.ExternalGroupId, group.ExternalThreadId, string.Empty));
+    }
+
+    public Task DeleteThreadAsync(PlatformGroup group, CancellationToken ct) => Task.CompletedTask;
+
+    public async Task DeleteMessageAsync(PlatformMessageRef messageRef, CancellationToken ct)
+    {
+        var channelId = GetChannelId(new PlatformGroup(messageRef.Platform, messageRef.ExternalGroupId, string.Empty, messageRef.ExternalThreadId));
+        await restClient.DeleteMessageAsync(channelId, ParseSnowflake(messageRef.ExternalMessageId));
+    }
+
     public async Task SendPrivateMessageAsync(PlatformPrivateMessage message, CancellationToken ct)
     {
         await SendDirectContentAsync(message.Recipient, message.HtmlText, ct);
@@ -403,6 +435,30 @@ public sealed class DiscordPlatformMessenger : IPlatformMessenger
         return ParseSnowflake(channelId);
     }
 
+    private static IReadOnlyList<ActionRowProperties> BuildActionRows(IReadOnlyList<PlatformMessageAction> actions)
+    {
+        if (actions.Count == 0)
+        {
+            return [];
+        }
+
+        var rows = new List<ActionRowProperties>();
+        foreach (var chunk in actions.Chunk(5))
+        {
+            var row = new ActionRowProperties();
+            foreach (var action in chunk)
+            {
+                row.Add(new ButtonProperties(action.Key, action.Label, ButtonStyle.Secondary)
+                {
+                    CustomId = action.Payload
+                });
+            }
+            rows.Add(row);
+        }
+
+        return rows;
+    }
+
     private static ulong ParseSnowflake(string value) =>
         ulong.Parse(value, CultureInfo.InvariantCulture);
 }

src/GmRelay.DiscordBot/Program.cs

@@ -59,6 +59,7 @@ builder.Services.AddSingleton<DiscordListSessionsHandler>();
 builder.Services.AddSingleton<DiscordDeleteSessionHandler>();
 builder.Services.AddSingleton<DiscordNewSessionHandler>();
 builder.Services.AddSingleton<DiscordRescheduleHandler>();
+builder.Services.AddSingleton<GmRelay.Shared.Features.Sessions.RescheduleSession.HandleRescheduleVoteHandler>();
 builder.Services.AddSingleton<DiscordRescheduleVoteHandler>();
 builder.Services.AddSingleton<IScheduleMessageUpdateLock, ScheduleMessageUpdateLock>();
 builder.Services.AddSingleton<JoinSessionHandler>();

src/GmRelay.Shared/Domain/GameSystem.cs

@@ -0,0 +1,83 @@
+using System.Collections.Frozen;
+
+namespace GmRelay.Shared.Domain;
+
+public enum GameSystem
+{
+    Dnd5e,
+    Pathfinder2e,
+    CallOfCthulhu7e,
+    Shadowdark,
+    OldSchoolEssentials,
+    Dragonbane,
+    BladesInTheDark,
+    Daggerheart,
+    CyberpunkRed,
+    Mothership,
+    AlienRpg,
+    WarhammerFantasy,
+    VampireMasquerade5e,
+    StarWarsFfg,
+    Genesys,
+    SavageWorlds,
+    GURPS,
+    Fate,
+    DungeonWorld,
+    Ironsworn,
+    Other
+}
+
+public static class GameSystemExtensions
+{
+    private static readonly FrozenDictionary<GameSystem, string> DisplayNames =
+        new Dictionary<GameSystem, string>
+        {
+            [GameSystem.Dnd5e] = "D&D 5e",
+            [GameSystem.Pathfinder2e] = "Pathfinder 2e",
+            [GameSystem.CallOfCthulhu7e] = "Call of Cthulhu 7e",
+            [GameSystem.Shadowdark] = "Shadowdark",
+            [GameSystem.OldSchoolEssentials] = "Old School Essentials",
+            [GameSystem.Dragonbane] = "Dragonbane",
+            [GameSystem.BladesInTheDark] = "Blades in the Dark",
+            [GameSystem.Daggerheart] = "Daggerheart",
+            [GameSystem.CyberpunkRed] = "Cyberpunk RED",
+            [GameSystem.Mothership] = "Mothership",
+            [GameSystem.AlienRpg] = "Alien RPG",
+            [GameSystem.WarhammerFantasy] = "Warhammer Fantasy",
+            [GameSystem.VampireMasquerade5e] = "Vampire: The Masquerade 5e",
+            [GameSystem.StarWarsFfg] = "Star Wars (FFG)",
+            [GameSystem.Genesys] = "Genesys",
+            [GameSystem.SavageWorlds] = "Savage Worlds",
+            [GameSystem.GURPS] = "GURPS",
+            [GameSystem.Fate] = "Fate",
+            [GameSystem.DungeonWorld] = "Dungeon World",
+            [GameSystem.Ironsworn] = "Ironsworn",
+            [GameSystem.Other] = "Другое"
+        }.ToFrozenDictionary();
+
+    public static string ToDisplayName(this GameSystem system) =>
+        DisplayNames.TryGetValue(system, out var name) ? name : "Другое";
+
+    public static GameSystem? TryParseFuzzy(string input)
+    {
+        if (string.IsNullOrWhiteSpace(input))
+            return null;
+
+        var normalized = input.Trim().ToLowerInvariant();
+
+        if (Enum.TryParse<GameSystem>(normalized, true, out var exact))
+            return exact;
+
+        foreach (var value in Enum.GetValues<GameSystem>())
+        {
+            if (value == GameSystem.Other)
+                continue;
+
+            var display = value.ToDisplayName().ToLowerInvariant();
+            if (display == normalized || display.Contains(normalized) || normalized.Contains(display))
+                return value;
+        }
+
+        return GameSystem.Other;
+    }
+}

src/GmRelay.Shared/Features/Sessions/CreateSession/CreateSessionCommand.cs

@@ -0,0 +1,18 @@
+using GmRelay.Shared.Domain;
+using GmRelay.Shared.Platform;
+
+namespace GmRelay.Shared.Features.Sessions.CreateSession;
+
+public sealed record CreateSessionCommand(
+    PlatformUser User,
+    PlatformGroup Group,
+    string Title,
+    string Link,
+    IReadOnlyList<DateTimeOffset> ScheduledTimes,
+    int? MaxPlayers,
+    string? ImageReference,
+    GameSystem? System = null,
+    string? Description = null,
+    string? Format = null,
+    int? DurationMinutes = null,
+    bool IsOneShot = false);

src/GmRelay.Shared/Features/Sessions/CreateSession/CreateSessionHandler.cs

@@ -0,0 +1,168 @@
+using Dapper;
+using GmRelay.Shared.Domain;
+using GmRelay.Shared.Platform;
+using GmRelay.Shared.Rendering;
+using Npgsql;
+
+namespace GmRelay.Shared.Features.Sessions.CreateSession;
+
+internal sealed record SessionCreationGroupAccessDto(Guid GroupId, bool CanManage);
+
+public sealed class CreateSessionHandler(
+    NpgsqlDataSource dataSource)
+{
+    public async Task<CreateSessionResult> HandleAsync(CreateSessionCommand command, CancellationToken ct)
+    {
+        await using var connection = await dataSource.OpenConnectionAsync(ct);
+        await using var transaction = await connection.BeginTransactionAsync(ct);
+
+        var transactionCommitted = false;
+        try
+        {
+            var platform = command.User.Platform.ToString();
+            var externalUserId = command.User.ExternalUserId;
+            var displayName = command.User.DisplayName;
+            var externalUsername = command.User.ExternalUsername;
+
+            await connection.ExecuteAsync(
+                """
+                INSERT INTO players (display_name, platform, external_user_id, external_username)
+                VALUES (@Name, @Platform, @ExternalId, @Username)
+                ON CONFLICT (platform, external_user_id)
+                WHERE platform IS NOT NULL AND external_user_id IS NOT NULL
+                DO UPDATE
+                SET display_name = EXCLUDED.display_name,
+                    external_username = EXCLUDED.external_username;
+                """,
+                new { ExternalId = externalUserId, Name = displayName, Username = externalUsername, Platform = platform },
+                transaction);
+
+            var existingGroup = await connection.QuerySingleOrDefaultAsync<SessionCreationGroupAccessDto>(
+                """
+                SELECT g.id AS GroupId,
+                       EXISTS (
+                           SELECT 1
+                           FROM group_managers gm
+                           JOIN players p ON p.id = gm.player_id
+                           WHERE gm.group_id = g.id
+                             AND p.platform = @Platform
+                             AND p.external_user_id = @ExternalGmId
+                       ) AS CanManage
+                FROM game_groups g
+                WHERE g.platform = @Platform
+                  AND g.external_group_id = @ExternalGroupId
+                """,
+                new { Platform = platform, ExternalGroupId = command.Group.ExternalGroupId, ExternalGmId = externalUserId },
+                transaction);
+
+            Guid groupId;
+            if (existingGroup is null)
+            {
+                groupId = await connection.ExecuteScalarAsync<Guid>(
+                    """
+                    INSERT INTO game_groups (name, platform, external_group_id, external_channel_id)
+                    VALUES (@ChatName, @Platform, @ExternalGroupId, @ExternalChannelId)
+                    RETURNING id;
+                    """,
+                    new
+                    {
+                        Platform = platform,
+                        ExternalGroupId = command.Group.ExternalGroupId,
+                        ExternalChannelId = command.Group.ExternalChannelId,
+                        ChatName = command.Group.DisplayName
+                    },
+                    transaction);
+
+                await connection.ExecuteAsync(
+                    """
+                    INSERT INTO group_managers (group_id, player_id, role)
+                    SELECT @GroupId, p.id, @OwnerRole
+                    FROM players p
+                    WHERE p.platform = @Platform
+                      AND p.external_user_id = @ExternalGmId
+                    ON CONFLICT (group_id, player_id) DO NOTHING
+                    """,
+                    new { GroupId = groupId, ExternalGmId = externalUserId, OwnerRole = GroupManagerRoleExtensions.OwnerValue },
+                    transaction);
+            }
+            else
+            {
+                if (!existingGroup.CanManage)
+                {
+                    await transaction.RollbackAsync(ct);
+                    return new CreateSessionResult(
+                        false,
+                        "⛔ Только owner или co-GM этой группы может создавать игровые сессии.",
+                        null,
+                        null,
+                        null,
+                        Array.Empty<string>());
+                }
+
+                groupId = existingGroup.GroupId;
+                await connection.ExecuteAsync(
+                    """
+                    UPDATE game_groups
+                    SET name = @ChatName
+                    WHERE id = @GroupId
+                    """,
+                    new { ChatName = command.Group.DisplayName, GroupId = groupId },
+                    transaction);
+            }
+
+            var batchId = Guid.NewGuid();
+            var sessions = new List<SessionBatchDto>();
+            var orderedTimes = command.ScheduledTimes.OrderBy(v => v).ToList();
+
+            foreach (var scheduledAt in orderedTimes)
+            {
+                var sessionId = await connection.ExecuteScalarAsync<Guid>(
+                    """
+                    INSERT INTO sessions (batch_id, group_id, title, join_link, scheduled_at, status, max_players, system, description, format, duration_minutes, is_one_shot, cover_image_url)
+                    VALUES (@BatchId, @GroupId, @Title, @Link, @ScheduledAt, @Status, @MaxPlayers, @System, @Description, @Format, @DurationMinutes, @IsOneShot, @CoverImageUrl)
+                    RETURNING id;
+                    """,
+                    new
+                    {
+                        BatchId = batchId,
+                        GroupId = groupId,
+                        command.Title,
+                        Link = command.Link,
+                        ScheduledAt = scheduledAt,
+                        Status = SessionStatus.Planned,
+                        MaxPlayers = command.MaxPlayers,
+                        System = command.System?.ToString(),
+                        command.Description,
+                        command.Format,
+                        DurationMinutes = command.DurationMinutes,
+                        IsOneShot = command.IsOneShot,
+                        CoverImageUrl = command.ImageReference
+                    },
+                    transaction);
+
+                sessions.Add(new SessionBatchDto(sessionId, scheduledAt.UtcDateTime, SessionStatus.Planned, command.MaxPlayers, command.Link));
+            }
+
+            await transaction.CommitAsync(ct);
+            transactionCommitted = true;
+
+            var view = SessionBatchViewBuilder.Build(command.Title, sessions, Array.Empty<ParticipantBatchDto>());
+
+            return new CreateSessionResult(
+                true,
+                null,
+                view,
+                batchId,
+                groupId,
+                Array.Empty<string>());
+        }
+        catch
+        {
+            if (!transactionCommitted)
+            {
+                await transaction.RollbackAsync(ct);
+            }
+            throw;
+        }
+    }
+}

src/GmRelay.Shared/Features/Sessions/CreateSession/CreateSessionResult.cs

@@ -0,0 +1,11 @@
+using GmRelay.Shared.Rendering;
+
+namespace GmRelay.Shared.Features.Sessions.CreateSession;
+
+public sealed record CreateSessionResult(
+    bool Success,
+    string? ErrorMessage,
+    SessionBatchViewModel? View,
+    Guid? BatchId,
+    Guid? GroupId,
+    IReadOnlyList<string> Warnings);

src/GmRelay.Shared/Features/Sessions/ExportCalendar/ExportCalendarCommand.cs

@@ -0,0 +1,7 @@
+using GmRelay.Shared.Platform;
+
+namespace GmRelay.Shared.Features.Sessions.ExportCalendar;
+
+public sealed record ExportCalendarCommand(
+    PlatformGroup Group,
+    PlatformUser User);

src/GmRelay.Shared/Features/Sessions/ExportCalendar/ExportCalendarHandler.cs

@@ -0,0 +1,111 @@
+using System.Text;
+using Dapper;
+using GmRelay.Shared.Domain;
+using GmRelay.Shared.Platform;
+using Microsoft.Extensions.Configuration;
+using Npgsql;
+
+namespace GmRelay.Shared.Features.Sessions.ExportCalendar;
+
+internal sealed record CalendarSessionDto(Guid Id, string Title, DateTime ScheduledAt);
+
+public sealed class ExportCalendarHandler(
+    NpgsqlDataSource dataSource,
+    IPlatformMessenger messenger,
+    IConfiguration configuration)
+{
+    public async Task HandleAsync(ExportCalendarCommand command, CancellationToken cancellationToken)
+    {
+        await using var connection = await dataSource.OpenConnectionAsync(cancellationToken);
+
+        var sessions = await connection.QueryAsync<CalendarSessionDto>(
+            @"SELECT s.id as Id, s.title as Title, s.scheduled_at as ScheduledAt"
+            + " FROM sessions s"
+            + " JOIN game_groups g ON s.group_id = g.id"
+            + " WHERE g.platform = @Platform"
+            + " AND g.external_group_id = @ExternalGroupId"
+            + " AND s.status = @Planned"
+            + " AND s.scheduled_at > NOW()"
+            + " ORDER BY s.scheduled_at ASC",
+            new { Platform = command.Group.Platform.ToString(), ExternalGroupId = command.Group.ExternalGroupId, Planned = SessionStatus.Planned });
+
+        var sessionsList = sessions.ToList();
+
+        if (sessionsList.Count == 0)
+        {
+            await messenger.SendGroupMessageAsync(
+                command.Group,
+                "📭 У этой группы нет запланированных сессий для экспорта.",
+                cancellationToken);
+            return;
+        }
+
+        var sb = new StringBuilder();
+        sb.AppendLine("BEGIN:VCALENDAR");
+        sb.AppendLine("VERSION:2.0");
+        sb.AppendLine("PRODID:-//GM-Relay//TTRPG Schedule//EN");
+
+        foreach (var s in sessionsList)
+        {
+            var dtStart = s.ScheduledAt.ToString("yyyyMMddTHHmmssZ");
+            var dtEnd = s.ScheduledAt.AddHours(4).ToString("yyyyMMddTHHmmssZ");
+
+            sb.AppendLine("BEGIN:VEVENT");
+            sb.AppendLine($"UID:{s.Id}@gmrelay");
+            sb.AppendLine($"DTSTAMP:{DateTime.UtcNow:yyyyMMddTHHmmssZ}");
+            sb.AppendLine($"DTSTART:{dtStart}");
+            sb.AppendLine($"DTEND:{dtEnd}");
+            sb.AppendLine($"SUMMARY:{s.Title}");
+            sb.AppendLine("END:VEVENT");
+        }
+
+        sb.AppendLine("END:VCALENDAR");
+
+        var bytes = Encoding.UTF8.GetBytes(sb.ToString());
+
+        // Create calendar subscription
+        string? subscriptionUrl = null;
+        var baseUrl = configuration["Web:BaseUrl"];
+        var senderId = command.User.ExternalUserId;
+        if (!string.IsNullOrWhiteSpace(baseUrl) && !string.IsNullOrWhiteSpace(senderId))
+        {
+            try
+            {
+                var token = Guid.NewGuid().ToString("N");
+                var groupId = await connection.QueryFirstOrDefaultAsync<Guid?>(
+                    @"SELECT id FROM game_groups WHERE platform = @Platform AND external_group_id = @ExternalGroupId",
+                    new { Platform = command.Group.Platform.ToString(), ExternalGroupId = command.Group.ExternalGroupId });
+
+                await connection.ExecuteAsync(
+                    @"INSERT INTO calendar_subscriptions (id, token, user_platform, user_external_id, group_id, filter_type, created_at, expires_at)
+                      VALUES (gen_random_uuid(), @token, @userPlatform, @userExternalId, @groupId, @filterType, now(), NULL)",
+                    new { token, userPlatform = command.Group.Platform.ToString(), userExternalId = senderId, groupId, filterType = (int)CalendarSubscriptionFilter.SpecificGroup });
+
+                subscriptionUrl = $"{baseUrl.TrimEnd('/')}/calendar/{token}.ics";
+            }
+            catch
+            {
+                // Non-critical: if subscription creation fails, still send the file
+            }
+        }
+
+        var actions = subscriptionUrl is not null
+            ? new[]
+            {
+                new PlatformMessageAction(
+                    "calendar-subscription",
+                    "🔗 Подписаться на календарь",
+                    subscriptionUrl)
+            }
+            : Array.Empty<PlatformMessageAction>();
+
+        await messenger.SendCalendarFileAsync(
+            new PlatformCalendarFile(
+                command.Group,
+                "schedule.ics",
+                bytes,
+                "📅 <b>Ваш календарь игр!</b>\nОткройте файл на устройстве, чтобы добавить события в свой календарь.",
+                actions),
+            cancellationToken);
+    }
+}

src/GmRelay.Shared/Features/Sessions/ListSessions/DeleteSessionHandler.cs

@@ -0,0 +1,91 @@
+using Dapper;
+using GmRelay.Shared.Domain;
+using GmRelay.Shared.Platform;
+using Microsoft.Extensions.Logging;
+using Npgsql;
+
+namespace GmRelay.Shared.Features.Sessions.ListSessions;
+
+internal sealed record DeleteSessionInfoDto(
+    string Title,
+    Guid BatchId,
+    Guid GroupId,
+    bool CanManage,
+    int? ThreadId,
+    bool TopicCreatedByBot);
+
+public sealed record DeleteSessionResult(
+    bool Success,
+    string? ReplyText,
+    string? Title,
+    Guid? GroupId,
+    int? ThreadId,
+    bool TopicCreatedByBot,
+    int RemainingInTopic);
+
+public sealed class DeleteSessionHandler(
+    NpgsqlDataSource dataSource)
+{
+    public async Task<DeleteSessionResult> HandleAsync(DeleteSessionCommand command, CancellationToken ct)
+    {
+        await using var connection = await dataSource.OpenConnectionAsync(ct);
+        await using var transaction = await connection.BeginTransactionAsync(ct);
+
+        // 1. Fetch session and verify group manager.
+        var session = await connection.QuerySingleOrDefaultAsync<DeleteSessionInfoDto>(
+            """
+            SELECT s.title AS Title,
+                   s.batch_id AS BatchId,
+                   s.group_id AS GroupId,
+                   s.thread_id AS ThreadId,
+                   s.topic_created_by_bot AS TopicCreatedByBot,
+                   EXISTS (
+                       SELECT 1
+                       FROM group_managers gm
+                       JOIN players p ON p.id = gm.player_id
+                       WHERE gm.group_id = s.group_id
+                         AND p.platform = @Platform
+                       AND p.external_user_id = @ExternalUserId
+                   ) AS CanManage
+            FROM sessions s
+            WHERE s.id = @SessionId
+            """,
+            new { command.SessionId, Platform = command.User.Platform.ToString(), ExternalUserId = command.User.ExternalUserId }, transaction);
+
+        if (session == null)
+        {
+            return new DeleteSessionResult(false, "Сессия не найдена.", null, null, null, false, 0);
+        }
+
+        if (!session.CanManage)
+        {
+            return new DeleteSessionResult(false, "Только owner или co-GM может удалять сессию.", null, null, null, false, 0);
+        }
+
+        // 2. Delete session
+        await connection.ExecuteAsync("DELETE FROM sessions WHERE id = @Id", new { Id = command.SessionId }, transaction);
+
+        var remainingInTopic = session.ThreadId.HasValue
+            ? await connection.ExecuteScalarAsync<int>(
+                """
+                SELECT COUNT(*)
+                FROM sessions
+                WHERE group_id = @GroupId
+                  AND thread_id = @ThreadId
+                """,
+                new { session.GroupId, ThreadId = session.ThreadId.Value },
+                transaction)
+            : 0;
+
+        await transaction.CommitAsync(ct);
+
+        return new DeleteSessionResult(
+            true,
+            "Сессия удалена!",
+            session.Title,
+            session.GroupId,
+            session.ThreadId,
+            session.TopicCreatedByBot,
+            remainingInTopic);
+    }
+}

src/GmRelay.Shared/Features/Sessions/ListSessions/ListSessionsCommand.cs

@@ -0,0 +1,13 @@
+using GmRelay.Shared.Platform;
+
+namespace GmRelay.Shared.Features.Sessions.ListSessions;
+
+public sealed record ListSessionsCommand(
+    PlatformGroup Group,
+    PlatformUser User);
+
+public sealed record DeleteSessionCommand(
+    Guid SessionId,
+    PlatformUser User,
+    PlatformGroup Group,
+    PlatformMessageRef ScheduleMessage);

src/GmRelay.Shared/Features/Sessions/ListSessions/ListSessionsHandler.cs

@@ -0,0 +1,57 @@
+using Dapper;
+using GmRelay.Shared.Domain;
+using GmRelay.Shared.Platform;
+using Npgsql;
+
+namespace GmRelay.Shared.Features.Sessions.ListSessions;
+
+public sealed record SessionListItemDto(Guid Id, string Title, DateTime ScheduledAt, string Status, int? MaxPlayers, int PlayerCount, int WaitlistCount, bool CanManage);
+
+public sealed record SessionListResult(
+    IReadOnlyList<SessionListItemDto> Sessions,
+    bool CanManage);
+
+public sealed class ListSessionsHandler(
+    NpgsqlDataSource dataSource)
+{
+    public async Task<SessionListResult> HandleAsync(ListSessionsCommand command, CancellationToken cancellationToken)
+    {
+        await using var connection = await dataSource.OpenConnectionAsync(cancellationToken);
+
+        var sessions = await connection.QueryAsync<SessionListItemDto>(
+            @"SELECT s.id as Id, s.title as Title, s.scheduled_at as ScheduledAt, s.status as Status, s.max_players as MaxPlayers,
+                     COUNT(sp.id) FILTER (WHERE sp.is_gm = false AND sp.registration_status = @Active) as PlayerCount,
+                     COUNT(sp.id) FILTER (WHERE sp.is_gm = false AND sp.registration_status = @Waitlisted) as WaitlistCount,
+                     EXISTS (
+                         SELECT 1
+                         FROM group_managers gm
+                         JOIN players manager_player ON manager_player.id = gm.player_id
+                         WHERE gm.group_id = s.group_id
+                           AND manager_player.platform = @Platform
+                           AND manager_player.external_user_id = @ExternalUserId
+                     ) AS CanManage
+              FROM sessions s
+              JOIN game_groups g ON s.group_id = g.id
+              LEFT JOIN session_participants sp ON s.id = sp.session_id
+              WHERE g.platform = @Platform
+                AND g.external_group_id = @ExternalGroupId
+                AND s.status != @Cancelled
+                AND s.scheduled_at > NOW()
+              GROUP BY s.id, s.title, s.scheduled_at, s.status, s.max_players, s.group_id
+              ORDER BY s.scheduled_at ASC",
+            new
+            {
+                Platform = command.Group.Platform.ToString(),
+                ExternalGroupId = command.Group.ExternalGroupId,
+                ExternalUserId = command.User.ExternalUserId,
+                Cancelled = SessionStatus.Cancelled,
+                Active = ParticipantRegistrationStatus.Active,
+                Waitlisted = ParticipantRegistrationStatus.Waitlisted
+            });
+
+        var sessionsList = sessions.ToList();
+        var canManage = sessionsList.Count > 0 && sessionsList.First().CanManage;
+
+        return new SessionListResult(sessionsList, canManage);
+    }
+}

src/GmRelay.Shared/Features/Sessions/RescheduleSession/AwaitingProposalDto.cs

@@ -0,0 +1,12 @@
+namespace GmRelay.Shared.Features.Sessions.RescheduleSession;
+
+internal sealed record AwaitingProposalDto(
+    Guid Id,
+    Guid SessionId,
+    string Title,
+    DateTime CurrentScheduledAt,
+    Guid BatchId,
+    int? BatchMessageId,
+    string ExternalGroupId,
+    int? ThreadId,
+    string NotificationMode);

src/GmRelay.Shared/Features/Sessions/RescheduleSession/HandleRescheduleTimeInputCommand.cs

@@ -0,0 +1,15 @@
+using GmRelay.Shared.Platform;
+
+namespace GmRelay.Shared.Features.Sessions.RescheduleSession;
+
+public sealed record HandleRescheduleTimeInputCommand(
+    PlatformUser User,
+    PlatformGroup Group,
+    string Text);
+
+public sealed record HandleRescheduleVoteCommand(
+    Guid OptionId,
+    PlatformUser User,
+    PlatformGroup Group,
+    string InteractionId,
+    PlatformMessageRef ScheduleMessage);

src/GmRelay.Shared/Features/Sessions/RescheduleSession/HandleRescheduleTimeInputHandler.cs

@@ -0,0 +1,181 @@
+using Dapper;
+using GmRelay.Shared.Domain;
+using GmRelay.Shared.Platform;
+using GmRelay.Shared.Rendering;
+using Npgsql;
+
+namespace GmRelay.Shared.Features.Sessions.RescheduleSession;
+
+public sealed class HandleRescheduleTimeInputHandler(
+    NpgsqlDataSource dataSource)
+{
+    public async Task<HandleRescheduleTimeInputResult> HandleAsync(
+        HandleRescheduleTimeInputCommand command, CancellationToken ct)
+    {
+        await using var connection = await dataSource.OpenConnectionAsync(ct);
+
+        var platform = command.User.Platform.ToString();
+        var externalGmId = command.User.ExternalUserId;
+        var externalGroupId = command.Group.ExternalGroupId;
+
+        var proposal = await connection.QuerySingleOrDefaultAsync<AwaitingProposalDto>(
+            """
+            SELECT rp.id AS Id, rp.session_id AS SessionId, s.title AS Title, s.scheduled_at AS CurrentScheduledAt,
+                   s.batch_id AS BatchId, s.batch_message_id AS BatchMessageId,
+                   g.external_group_id AS ExternalGroupId,
+                   s.thread_id AS ThreadId,
+                   s.notification_mode AS NotificationMode
+            FROM reschedule_proposals rp
+            JOIN sessions s ON s.id = rp.session_id
+            JOIN game_groups g ON g.id = s.group_id
+            WHERE rp.proposed_by_external_user_id = @ExternalGmId
+              AND rp.status = 'AwaitingTime'
+              AND g.platform = @Platform
+              AND g.external_group_id = @ExternalGroupId
+              AND EXISTS (
+                  SELECT 1
+                  FROM group_managers gm
+                  JOIN players manager_player ON manager_player.id = gm.player_id
+                  WHERE gm.group_id = s.group_id
+                    AND manager_player.platform = @Platform
+                    AND manager_player.external_user_id = @ExternalGmId
+              )
+            ORDER BY rp.created_at DESC
+            LIMIT 1
+            """,
+            new { ExternalGmId = externalGmId, Platform = platform, ExternalGroupId = externalGroupId });
+
+        if (proposal is null)
+            return new HandleRescheduleTimeInputResult(false, false, null, null, null, null, [], [], [], null, default, null);
+
+        if (!RescheduleVotingInput.TryParse(command.Text, DateTimeOffset.UtcNow, out var votingInput, out var parseError))
+        {
+            return new HandleRescheduleTimeInputResult(
+                true, false, parseError, null, null, null, [], [], [], proposal.Title, proposal.CurrentScheduledAt, null);
+        }
+
+        var participants = (await connection.QueryAsync<VoteParticipantDto>(
+            """
+            SELECT p.id AS PlayerId,
+                   p.display_name AS DisplayName,
+                   p.external_username AS TelegramUsername,
+                   p.external_user_id::BIGINT AS TelegramId
+            FROM session_participants sp
+            JOIN players p ON p.id = sp.player_id
+            WHERE sp.session_id = @SessionId
+              AND sp.is_gm = false
+              AND sp.registration_status = @Active
+            """,
+            new { proposal.SessionId, Active = ParticipantRegistrationStatus.Active })).ToList();
+
+        if (participants.Count == 0)
+        {
+            var newTime = votingInput.Options[0];
+            var view = await RescheduleImmediatelyAsync(connection, proposal, newTime, ct);
+            var replyText =
+                $"""✅ Сессия «{proposal.Title}» перенесена!\n\n📅 Новое время: <b>{newTime.ToOffset(TimeSpan.FromHours(3)).ToString("d MMMM yyyy, HH:mm", System.Globalization.CultureInfo.GetCultureInfo("ru-RU"))}</b> (МСК)\n\n<i>Участников нет — голосование не требуется.</i>""";
+            return new HandleRescheduleTimeInputResult(
+                true, true, replyText, view, null, null, [], [], [], proposal.Title, proposal.CurrentScheduledAt, proposal.BatchMessageId);
+        }
+
+        await using var transaction = await connection.BeginTransactionAsync(ct);
+        var options = votingInput.Options
+            .Select((proposedAt, index) => new RescheduleOptionDto(
+                Guid.NewGuid(),
+                index + 1,
+                proposedAt))
+            .ToList();
+
+        await connection.ExecuteAsync(
+            """
+            UPDATE reschedule_proposals
+            SET voting_deadline_at = @Deadline, status = 'Voting', vote_chat_id = @VoteChatId
+            WHERE id = @Id
+            """,
+            new { votingInput.Deadline, VoteChatId = externalGroupId, Id = proposal.Id },
+            transaction);
+
+        foreach (var option in options)
+        {
+            await connection.ExecuteAsync(
+                """
+                INSERT INTO reschedule_options (id, proposal_id, proposed_at, display_order)
+                VALUES (@OptionId, @ProposalId, @ProposedAt, @DisplayOrder)
+                """,
+                new
+                {
+                    option.OptionId,
+                    ProposalId = proposal.Id,
+                    option.ProposedAt,
+                    option.DisplayOrder
+                },
+                transaction);
+        }
+
+        await transaction.CommitAsync(ct);
+
+        return new HandleRescheduleTimeInputResult(
+            true,
+            false,
+            null,
+            null,
+            proposal.Id,
+            votingInput.Deadline,
+            options,
+            participants,
+            [],
+            proposal.Title,
+            proposal.CurrentScheduledAt,
+            null);
+    }
+
+    private static async Task<SessionBatchViewModel?> RescheduleImmediatelyAsync(
+        NpgsqlConnection connection,
+        AwaitingProposalDto proposal,
+        DateTimeOffset newTime,
+        CancellationToken ct)
+    {
+        await using var transaction = await connection.BeginTransactionAsync(ct);
+
+        await connection.ExecuteAsync(
+            """
+            UPDATE sessions
+            SET scheduled_at = @NewTime,
+                status = @Status,
+                confirmation_message_id = NULL,
+                confirmation_sent_at = NULL,
+                one_hour_reminder_processed_at = NULL,
+                updated_at = now()
+            WHERE id = @SessionId
+            """,
+            new { NewTime = newTime, proposal.SessionId, Status = SessionStatus.Planned },
+            transaction);
+
+        await connection.ExecuteAsync(
+            "UPDATE reschedule_proposals SET proposed_at = @NewTime, status = 'Approved' WHERE id = @Id",
+            new { NewTime = newTime, Id = proposal.Id },
+            transaction);
+
+        await transaction.CommitAsync(ct);
+
+        var batchSessions = (await connection.QueryAsync<SessionBatchDto>(
+            "SELECT id AS SessionId, scheduled_at AS ScheduledAt, status AS Status, max_players AS MaxPlayers, join_link AS JoinLink FROM sessions WHERE batch_id = @BatchId ORDER BY scheduled_at",
+            new { proposal.BatchId })).ToList();
+
+        var batchParticipants = (await connection.QueryAsync<ParticipantBatchDto>(
+            """
+            SELECT sp.session_id AS SessionId,
+                   p.display_name AS DisplayName,
+                   p.external_username AS TelegramUsername,
+                   sp.registration_status AS RegistrationStatus
+            FROM session_participants sp
+            JOIN players p ON sp.player_id = p.id
+            JOIN sessions s ON sp.session_id = s.id
+            WHERE s.batch_id = @BatchId AND sp.is_gm = false
+            ORDER BY sp.registration_status ASC, sp.created_at ASC, sp.responded_at ASC, p.created_at ASC
+            """,
+            new { proposal.BatchId })).ToList();
+
+        return SessionBatchViewBuilder.Build(proposal.Title, batchSessions, batchParticipants);
+    }
+}

src/GmRelay.Shared/Features/Sessions/RescheduleSession/HandleRescheduleTimeInputResult.cs

@@ -0,0 +1,17 @@
+using GmRelay.Shared.Rendering;
+
+namespace GmRelay.Shared.Features.Sessions.RescheduleSession;
+
+public sealed record HandleRescheduleTimeInputResult(
+    bool Handled,
+    bool IsRescheduledImmediately,
+    string? ReplyText,
+    SessionBatchViewModel? UpdatedView,
+    Guid? ProposalId,
+    DateTimeOffset? VotingDeadlineAt,
+    IReadOnlyList<RescheduleOptionDto> Options,
+    IReadOnlyList<VoteParticipantDto> Participants,
+    IReadOnlyList<RescheduleOptionVoteDto> Votes,
+    string? Title,
+    DateTime CurrentScheduledAt,
+    int? BatchMessageId);

src/GmRelay.Shared/Features/Sessions/RescheduleSession/HandleRescheduleVoteHandler.cs

@@ -0,0 +1,156 @@
+using Dapper;
+using GmRelay.Shared.Domain;
+using GmRelay.Shared.Platform;
+using Npgsql;
+
+namespace GmRelay.Shared.Features.Sessions.RescheduleSession;
+
+public sealed class HandleRescheduleVoteHandler(
+    NpgsqlDataSource dataSource)
+{
+    public async Task<HandleRescheduleVoteResult> HandleAsync(HandleRescheduleVoteCommand command, CancellationToken ct)
+    {
+        await using var connection = await dataSource.OpenConnectionAsync(ct);
+        await using var transaction = await connection.BeginTransactionAsync(ct);
+
+        var proposal = await connection.QuerySingleOrDefaultAsync<VoteProposalDto>(
+            """
+            SELECT rp.id AS Id,
+                   rp.session_id AS SessionId,
+                   rp.voting_deadline_at AS VotingDeadlineAt,
+                   s.title AS Title,
+                   s.scheduled_at AS CurrentScheduledAt
+            FROM reschedule_options ro
+            JOIN reschedule_proposals rp ON rp.id = ro.proposal_id
+            JOIN sessions s ON s.id = rp.session_id
+            WHERE ro.id = @OptionId AND rp.status = 'Voting'
+            """,
+            new { command.OptionId },
+            transaction);
+
+        if (proposal is null)
+        {
+            return new HandleRescheduleVoteResult(
+                false,
+                "Голосование уже завершено или не найдено.",
+                null, null, null, default, default,
+                Array.Empty<VoteParticipantDto>(),
+                Array.Empty<RescheduleOptionDto>(),
+                Array.Empty<RescheduleOptionVoteDto>());
+        }
+
+        if (proposal.VotingDeadlineAt <= DateTimeOffset.UtcNow)
+        {
+            return new HandleRescheduleVoteResult(
+                false,
+                "Дедлайн уже прошёл. Результаты скоро будут применены.",
+                null, null, null, default, default,
+                Array.Empty<VoteParticipantDto>(),
+                Array.Empty<RescheduleOptionDto>(),
+                Array.Empty<RescheduleOptionVoteDto>());
+        }
+
+        var playerId = await connection.ExecuteScalarAsync<Guid?>(
+            """
+            SELECT p.id
+            FROM session_participants sp
+            JOIN players p ON p.id = sp.player_id
+            WHERE sp.session_id = @SessionId
+              AND p.platform = @Platform
+              AND p.external_user_id = @ExternalUserId
+              AND sp.is_gm = false
+              AND sp.registration_status = @Active
+            """,
+            new
+            {
+                proposal.SessionId,
+                Platform = command.User.Platform.ToString(),
+                ExternalUserId = command.User.ExternalUserId,
+                Active = ParticipantRegistrationStatus.Active
+            },
+            transaction);
+
+        if (playerId is null)
+        {
+            return new HandleRescheduleVoteResult(
+                false,
+                "Вы не являетесь участником этой сессии.",
+                null, null, null, default, default,
+                Array.Empty<VoteParticipantDto>(),
+                Array.Empty<RescheduleOptionDto>(),
+                Array.Empty<RescheduleOptionVoteDto>());
+        }
+
+        await connection.ExecuteAsync(
+            """
+            INSERT INTO reschedule_option_votes (proposal_id, player_id, option_id)
+            VALUES (@ProposalId, @PlayerId, @OptionId)
+            ON CONFLICT (proposal_id, player_id) DO UPDATE
+            SET option_id = EXCLUDED.option_id,
+                voted_at = now()
+            """,
+            new
+            {
+                ProposalId = proposal.Id,
+                PlayerId = playerId.Value,
+                command.OptionId
+            },
+            transaction);
+
+        var participants = (await connection.QueryAsync<VoteParticipantDto>(
+            """
+            SELECT p.id AS PlayerId,
+                   p.display_name AS DisplayName,
+                   p.external_username AS TelegramUsername,
+                   p.external_user_id AS TelegramId
+            FROM session_participants sp
+            JOIN players p ON p.id = sp.player_id
+            WHERE sp.session_id = @SessionId
+              AND sp.is_gm = false
+              AND sp.registration_status = @Active
+            ORDER BY p.display_name
+            """,
+            new { proposal.SessionId, Active = ParticipantRegistrationStatus.Active },
+            transaction)).ToList();
+
+        var options = (await connection.QueryAsync<RescheduleOptionDto>(
+            """
+            SELECT id AS OptionId,
+                   display_order AS DisplayOrder,
+                   proposed_at AS ProposedAt
+            FROM reschedule_options
+            WHERE proposal_id = @ProposalId
+            ORDER BY display_order
+            """,
+            new { ProposalId = proposal.Id },
+            transaction)).ToList();
+
+        var votes = (await connection.QueryAsync<RescheduleOptionVoteDto>(
+            """
+            SELECT rov.option_id AS OptionId,
+                   p.id AS PlayerId,
+                   p.display_name AS DisplayName,
+                   p.external_username AS TelegramUsername
+            FROM reschedule_option_votes rov
+            JOIN players p ON p.id = rov.player_id
+            WHERE rov.proposal_id = @ProposalId
+            ORDER BY rov.voted_at, p.display_name
+            """,
+            new { ProposalId = proposal.Id },
+            transaction)).ToList();
+
+        await transaction.CommitAsync(ct);
+
+        return new HandleRescheduleVoteResult(
+            true,
+            "Ваш голос учтён. До дедлайна его можно изменить.",
+            proposal.Id,
+            proposal.SessionId,
+            proposal.Title,
+            proposal.CurrentScheduledAt,
+            proposal.VotingDeadlineAt,
+            participants,
+            options,
+            votes);
+    }
+}

src/GmRelay.Shared/Features/Sessions/RescheduleSession/HandleRescheduleVoteResult.cs

@@ -0,0 +1,15 @@
+using GmRelay.Shared.Features.Sessions.RescheduleSession;
+
+namespace GmRelay.Shared.Features.Sessions.RescheduleSession;
+
+public sealed record HandleRescheduleVoteResult(
+    bool Success,
+    string? ReplyText,
+    Guid? ProposalId,
+    Guid? SessionId,
+    string? Title,
+    DateTime CurrentScheduledAt,
+    DateTimeOffset VotingDeadlineAt,
+    IReadOnlyList<VoteParticipantDto> Participants,
+    IReadOnlyList<RescheduleOptionDto> Options,
+    IReadOnlyList<RescheduleOptionVoteDto> Votes);

src/GmRelay.Shared/Features/Showcase/ShowcaseFilter.cs

@@ -0,0 +1,23 @@
+namespace GmRelay.Shared.Features.Showcase;
+
+public sealed record ShowcaseFilter(
+    DateFilter Date = DateFilter.All,
+    SeatFilter Seats = SeatFilter.Any,
+    string? System = null,
+    bool? IsOneShot = null,
+    string? Format = null);
+
+public enum DateFilter
+{
+    Today,
+    Tomorrow,
+    ThisWeek,
+    All
+}
+
+public enum SeatFilter
+{
+    Available,
+    Waitlist,
+    Any
+}

src/GmRelay.Shared/Features/Showcase/ShowcaseSessionDto.cs

@@ -0,0 +1,22 @@
+namespace GmRelay.Shared.Features.Showcase;
+
+public sealed record ShowcaseSessionDto(
+    Guid Id,
+    Guid GroupId,
+    string GroupName,
+    string? GroupSlug,
+    string Title,
+    DateTime ScheduledAt,
+    string Status,
+    string? System,
+    bool IsOneShot,
+    string? Format,
+    int? DurationMinutes,
+    string? CoverImageUrl,
+    int? MaxPlayers,
+    int ActivePlayerCount,
+    int WaitlistedPlayerCount,
+    bool AllowDirectRegistration,
+    string? Description,
+    string? MasterProfileSlug = null,
+    string? MasterDisplayName = null);

src/GmRelay.Shared/Platform/IPlatformMessenger.cs

@@ -2,7 +2,23 @@ namespace GmRelay.Shared.Platform;
 
 public interface IPlatformMessenger
 {
-    Task<PlatformMessageRef> SendScheduleAsync(PlatformScheduleMessage message, CancellationToken ct);
+    Task SendGroupMessageAsync(PlatformGroup group, string htmlText, IReadOnlyList<PlatformMessageAction> actions, CancellationToken ct) =>
+        throw new NotSupportedException("This platform messenger does not support messages with actions.");
+
+    Task UpdateGroupMessageAsync(PlatformMessageRef messageRef, string htmlText, IReadOnlyList<PlatformMessageAction> actions, CancellationToken ct) =>
+        throw new NotSupportedException("This platform messenger does not support message updates with actions.");
+
+    Task<PlatformMessageRef> CreateThreadAsync(PlatformGroup group, string title, CancellationToken ct) =>
+        throw new NotSupportedException("This platform messenger does not support thread creation.");
+
+    Task DeleteThreadAsync(PlatformGroup group, CancellationToken ct) =>
+        throw new NotSupportedException("This platform messenger does not support thread deletion.");
+
+    Task DeleteMessageAsync(PlatformMessageRef messageRef, CancellationToken ct) =>
+        throw new NotSupportedException("This platform messenger does not support message deletion.");
+
+    Task<PlatformMessageRef> SendScheduleAsync(PlatformScheduleMessage message, CancellationToken ct) =>
+        throw new NotSupportedException("This platform messenger does not support schedule messages.");
 
     Task UpdateScheduleAsync(PlatformScheduleMessage message, CancellationToken ct);
 

src/GmRelay.Web/Components/Layout/NavMenu.razor

@@ -73,7 +73,7 @@
                     </button>
                 </form>
 
-                <div class="nav-version">v3.1.1</div>
+                <div class="nav-version">v3.5.0</div>
             </div>
         </Authorized>
         <NotAuthorized>

src/GmRelay.Web/Components/Layout/PublicLayout.razor

@@ -0,0 +1,21 @@
+@inherits LayoutComponentBase
+
+<div class="public-shell">
+    <header class="public-topbar">
+        <a class="public-brand" href="/">
+            <img src="/logo.png" alt="GM-Relay" />
+            <span>GM-Relay</span>
+        </a>
+        <a class="btn-gm btn-gm-outline" href="/login">Войти</a>
+    </header>
+
+    <main class="public-content">
+        @Body
+    </main>
+</div>
+
+<div id="blazor-error-ui" data-nosnippet>
+    Произошла непредвиденная ошибка.
+    <a href="." class="reload">Перезагрузить</a>
+    <span class="dismiss">×</span>
+</div>

src/GmRelay.Web/Components/Pages/GroupDetails.razor

@@ -40,8 +40,8 @@
                     </span>
                     @if (groupManagement.CurrentUserIsOwner && manager.Role == GroupManagerRoleExtensions.CoGmValue)
                     {
-                        <button type="button" class="btn-gm btn-gm-outline" style="font-size: 0.75rem; padding: 0.25rem 0.5rem;" disabled="@(removingCoGmId == manager.ExternalUserId)" @onclick="() => RemoveCoGm(manager.ExternalUserId ?? manager.TelegramId.ToString())">
-                            @(removingCoGmId == manager.ExternalUserId ? "⏳ Удаляем..." : "Убрать")
+                        <button type="button" class="btn-gm btn-gm-outline" style="font-size: 0.75rem; padding: 0.25rem 0.5rem;" disabled="@(removingCoGmId == ManagerKey(manager))" @onclick="() => RemoveCoGm(manager)">
+                            @(removingCoGmId == ManagerKey(manager) ? "⏳ Удаляем..." : "Убрать")
                         </button>
                     }
                 }
@@ -52,8 +52,8 @@
                 <EditForm Model="@coGmModel" OnValidSubmit="AddCoGm">
                     <div class="batch-bulk-fields">
                         <div class="gm-form-group">
-                            <label class="gm-form-label">Telegram ID co-GM</label>
-                            <InputNumber @bind-Value="coGmModel.TelegramId" class="gm-form-control" min="1" />
+                            <label class="gm-form-label">@CoGmIdLabel</label>
+                            <InputText @bind-Value="coGmModel.ExternalUserId" class="gm-form-control" />
                         </div>
                         <div class="gm-form-group">
                             <label class="gm-form-label">Имя</label>
@@ -61,7 +61,7 @@
                         </div>
                         <div class="gm-form-group">
                             <label class="gm-form-label">Username</label>
-                            <InputText @bind-Value="coGmModel.TelegramUsername" class="gm-form-control" />
+                            <InputText @bind-Value="coGmModel.ExternalUsername" class="gm-form-control" />
                         </div>
                     </div>
                     <button type="submit" class="btn-gm btn-gm-primary" disabled="@isAddingCoGm">
@@ -72,6 +72,58 @@
         </div>
     }
 
+    @if (publicSettings is not null)
+    {
+        <div class="glass-card animate-slide-up public-settings-panel" style="margin-bottom: 1rem;">
+            <div class="batch-bulk-header">
+                <div>
+                    <h3>Публичная страница клуба</h3>
+                    <p>@publicSettings.PublicSessionCount опубликованных игр без состава игроков и приватных ссылок</p>
+                </div>
+                <span class="status-badge @(publicSettings.PublicScheduleEnabled ? "status-success" : "status-neutral")">
+                    @(publicSettings.PublicScheduleEnabled ? "Включена" : "Выключена")
+                </span>
+            </div>
+
+            <EditForm Model="@publicSettingsModel" OnValidSubmit="SavePublicSettings">
+                <div class="batch-bulk-fields">
+                    <div class="gm-form-group public-toggle-field">
+                        <label class="gm-checkbox-label">
+                            <InputCheckbox @bind-Value="publicSettingsModel.PublicScheduleEnabled" />
+                            <span>Включить публичное расписание</span>
+                        </label>
+                        <div class="gm-form-hint">Если выключено, публичная страница и ссылки на сессии недоступны.</div>
+                    </div>
+                    <div class="gm-form-group">
+                        <label class="gm-form-label">Короткий адрес</label>
+                        <InputText @bind-Value="publicSettingsModel.PublicSlug" class="gm-form-control" />
+                        <div class="gm-form-hint">Латиница, цифры и дефисы, например `night-city-club`.</div>
+                    </div>
+                </div>
+
+                <div class="public-settings-actions">
+                    <button type="submit" class="btn-gm btn-gm-primary" disabled="@savingPublicSettings">
+                        @(savingPublicSettings ? "Сохраняем..." : "Сохранить публикацию")
+                    </button>
+                    @if (PublicClubUrl is not null && publicSettings.PublicScheduleEnabled)
+                    {
+                        <a href="@PublicClubUrl" target="_blank" rel="noopener noreferrer" class="btn-gm btn-gm-outline">
+                            Открыть публичную страницу
+                        </a>
+                    }
+                </div>
+            </EditForm>
+
+            @if (PublicClubUrl is not null && publicSettings.PublicScheduleEnabled)
+            {
+                <div class="public-link-row">
+                    <span>Ссылка клуба</span>
+                    <a href="@PublicClubUrl" target="_blank" rel="noopener noreferrer">@PublicClubUrl</a>
+                </div>
+            }
+        </div>
+    }
+
     @if (!string.IsNullOrEmpty(errorMessage))
     {
         <div class="gm-alert gm-alert-danger" style="margin-bottom: 1rem;">
@@ -201,6 +253,17 @@
                         </button>
                     </EditForm>
 
+                    <div class="batch-publish-row">
+                        <span class="status-badge @(batch.AllSessionsPublic ? "status-success" : batch.PublicSessionCount > 0 ? "status-warning" : "status-neutral")">
+                            @FormatBatchPublication(batch)
+                        </span>
+                        <button type="button" class="btn-gm btn-gm-outline" disabled="@IsBatchPublishBusy(batch)" @onclick="() => SetBatchPublic(batch, !batch.AllSessionsPublic)">
+                            @(IsBatchPublishBusy(batch)
+                                ? "Обновляем..."
+                                : batch.AllSessionsPublic ? "Скрыть batch" : "Опубликовать batch")
+                        </button>
+                    </div>
+
                     <div class="batch-clone-row">
                         <select @bind="batch.CloneInterval" class="gm-form-control">
                             <option value="week">Следующая неделя</option>
@@ -249,6 +312,16 @@
                             </td>
                             <td>
                                 <div class="session-table-actions">
+                                    <span class="status-badge @GetPublicationStatusClass(session)">@FormatPublicationStatus(session)</span>
+                                    <button type="button" class="btn-gm btn-gm-outline" disabled="@(publishingSessionId == session.Id)" @onclick="() => SetSessionPublic(session.Id, !session.IsPublic)">
+                                        @(publishingSessionId == session.Id
+                                            ? "Обновляем..."
+                                            : session.IsPublic ? "Скрыть" : "Опубликовать")
+                                    </button>
+                                    @if (session.IsPublic && publicSettings?.PublicScheduleEnabled == true)
+                                    {
+                                        <a href="@PublicSessionUrl(session.Id)" target="_blank" rel="noopener noreferrer" class="btn-gm btn-gm-outline">Публичная ссылка</a>
+                                    }
                                     <a href="/session/edit/@session.Id" class="btn-gm btn-gm-outline">
                                         ✏️ Изменить
                                     </a>
@@ -337,6 +410,15 @@
                         </div>
                     </div>
                     <div class="session-card-actions">
+                        <button type="button" class="btn-gm btn-gm-outline" style="flex: 1; justify-content: center; font-size: 0.8125rem; padding: 0.5rem;" disabled="@(publishingSessionId == session.Id)" @onclick="() => SetSessionPublic(session.Id, !session.IsPublic)">
+                            @(publishingSessionId == session.Id
+                                ? "Обновляем..."
+                                : session.IsPublic ? "Скрыть" : "Опубликовать")
+                        </button>
+                        @if (session.IsPublic && publicSettings?.PublicScheduleEnabled == true)
+                        {
+                            <a href="@PublicSessionUrl(session.Id)" target="_blank" rel="noopener noreferrer" class="btn-gm btn-gm-outline" style="flex: 1; justify-content: center; font-size: 0.8125rem; padding: 0.5rem;">Публичная ссылка</a>
+                        }
                         <a href="/session/edit/@session.Id" class="btn-gm btn-gm-outline" style="flex: 1; justify-content: center; font-size: 0.8125rem; padding: 0.5rem;">
                             ✏️ Изменить
                         </a>
@@ -398,17 +480,23 @@
     private List<WebSession>? sessions;
     private List<WebCampaignTemplate>? campaignTemplates;
     private WebGroupManagement? groupManagement;
+    private WebPublicGroupSettings? publicSettings;
     private List<BatchBulkEditModel> batchModels = [];
     private List<CampaignTemplateUsageModel> campaignTemplateModels = [];
     private Guid? promotingSessionId;
     private Guid? processingBatchId;
     private Guid? processingTemplateId;
+    private Guid? publishingBatchId;
+    private Guid? publishingSessionId;
     private string? removingCoGmId;
     private bool isAddingCoGm;
+    private bool savingPublicSettings;
+    private string? currentPlatform;
     private string? externalUserId;
     private string? errorMessage;
     private string? successMessage;
     private CoGmEditModel coGmModel = new();
+    private PublicSettingsEditModel publicSettingsModel = new();
     private Dictionary<Guid, List<WebParticipant>> participantsCache = new();
     private HashSet<Guid> expandedSessions = new();
     private Guid? kickingParticipantId;
@@ -423,6 +511,7 @@
             return;
         }
 
+        currentPlatform = platform;
         await LoadSessions();
     }
 
@@ -442,6 +531,13 @@
             return;
         }
 
+        publicSettings = await SessionService.GetPublicGroupSettingsForCurrentUserAsync(GroupId);
+        if (publicSettings is null)
+        {
+            Navigation.NavigateTo("/access-denied");
+            return;
+        }
+
         campaignTemplates = await SessionService.GetCampaignTemplatesForCurrentUserAsync(GroupId);
         if (campaignTemplates is null)
         {
@@ -451,6 +547,92 @@
 
         RebuildBatchModels();
         RebuildCampaignTemplateModels();
+        RebuildPublicSettingsModel();
+    }
+
+    private async Task SavePublicSettings()
+    {
+        errorMessage = null;
+        successMessage = null;
+        savingPublicSettings = true;
+
+        try
+        {
+            await SessionService.UpdatePublicGroupSettingsForCurrentUserAsync(
+                GroupId,
+                publicSettingsModel.PublicSlug,
+                publicSettingsModel.PublicScheduleEnabled);
+            successMessage = "Настройки публичной страницы обновлены.";
+            await LoadSessions();
+        }
+        catch (SessionAccessDeniedException)
+        {
+            Navigation.NavigateTo("/access-denied");
+        }
+        catch (Exception ex)
+        {
+            errorMessage = "Не удалось обновить публичную страницу: " + ex.Message;
+        }
+        finally
+        {
+            savingPublicSettings = false;
+        }
+    }
+
+    private async Task SetBatchPublic(BatchBulkEditModel batch, bool isPublic)
+    {
+        errorMessage = null;
+        successMessage = null;
+        publishingBatchId = batch.BatchId;
+
+        try
+        {
+            await SessionService.SetBatchPublicForCurrentUserAsync(batch.BatchId, isPublic);
+            successMessage = isPublic
+                ? "Batch опубликован в публичном расписании."
+                : "Batch скрыт из публичного расписания.";
+            await LoadSessions();
+        }
+        catch (SessionAccessDeniedException)
+        {
+            Navigation.NavigateTo("/access-denied");
+        }
+        catch (Exception ex)
+        {
+            errorMessage = "Не удалось обновить публичность batch: " + ex.Message;
+        }
+        finally
+        {
+            publishingBatchId = null;
+        }
+    }
+
+    private async Task SetSessionPublic(Guid sessionId, bool isPublic)
+    {
+        errorMessage = null;
+        successMessage = null;
+        publishingSessionId = sessionId;
+
+        try
+        {
+            await SessionService.SetSessionPublicForCurrentUserAsync(sessionId, isPublic);
+            successMessage = isPublic
+                ? "Сессия опубликована в публичном расписании."
+                : "Сессия скрыта из публичного расписания.";
+            await LoadSessions();
+        }
+        catch (SessionAccessDeniedException)
+        {
+            Navigation.NavigateTo("/access-denied");
+        }
+        catch (Exception ex)
+        {
+            errorMessage = "Не удалось обновить публичность сессии: " + ex.Message;
+        }
+        finally
+        {
+            publishingSessionId = null;
+        }
     }
 
     private async Task AddCoGm()
@@ -458,9 +640,16 @@
         errorMessage = null;
         successMessage = null;
 
-        if (!coGmModel.TelegramId.HasValue || coGmModel.TelegramId.Value <= 0)
+        var coGmExternalUserId = coGmModel.ExternalUserId.Trim();
+        if (coGmExternalUserId.Length == 0)
         {
-            errorMessage = "Telegram ID co-GM должен быть положительным числом.";
+            errorMessage = $"{CoGmIdLabel} должен быть заполнен.";
+            return;
+        }
+
+        if (!IsValidPlatformUserId(CoGmPlatform, coGmExternalUserId))
+        {
+            errorMessage = $"{CoGmIdLabel} должен быть положительным числом.";
             return;
         }
 
@@ -470,10 +659,10 @@
         {
             await SessionService.AddCoGmForOwnerAsync(
                 GroupId,
-                "Telegram",
-                coGmModel.TelegramId.Value.ToString(),
+                CoGmPlatform,
+                coGmExternalUserId,
                 coGmModel.DisplayName,
-                coGmModel.TelegramUsername);
+                coGmModel.ExternalUsername);
 
             coGmModel = new();
             successMessage = "Co-GM добавлен.";
@@ -493,15 +682,17 @@
         }
     }
 
-    private async Task RemoveCoGm(string coGmExternalUserId)
+    private async Task RemoveCoGm(WebGroupManager manager)
     {
         errorMessage = null;
         successMessage = null;
-        removingCoGmId = coGmExternalUserId;
+        removingCoGmId = ManagerKey(manager);
+        var platform = ManagerPlatform(manager);
+        var coGmExternalUserId = ManagerExternalUserId(manager);
 
         try
         {
-            await SessionService.RemoveCoGmForOwnerAsync(GroupId, "Telegram", coGmExternalUserId);
+            await SessionService.RemoveCoGmForOwnerAsync(GroupId, platform, coGmExternalUserId);
             successMessage = "Co-GM удалён.";
             await LoadSessions();
         }
@@ -795,7 +986,9 @@
                     FirstScheduledAtLocal = firstSession.ScheduledAt.ToMoscow(),
                     LastScheduledAtLocal = lastSession.ScheduledAt.ToMoscow(),
                     IntervalDays = InferIntervalDays(orderedSessions),
-                    SessionCount = orderedSessions.Count
+                    SessionCount = orderedSessions.Count,
+                    PublicSessionCount = orderedSessions.Count(session => session.IsPublic),
+                    AllSessionsPublic = orderedSessions.All(session => session.IsPublic)
                 };
             })
             .OrderBy(batch => batch.FirstScheduledAtLocal)
@@ -823,6 +1016,20 @@
             .ToList() ?? [];
     }
 
+    private void RebuildPublicSettingsModel()
+    {
+        if (publicSettings is null)
+        {
+            return;
+        }
+
+        publicSettingsModel = new PublicSettingsEditModel
+        {
+            PublicScheduleEnabled = publicSettings.PublicScheduleEnabled,
+            PublicSlug = publicSettings.PublicSlug ?? ""
+        };
+    }
+
     private static bool ValidateBatchDetails(BatchBulkEditModel batch)
     {
         batch.Title = batch.Title.Trim();
@@ -832,24 +1039,76 @@
 
     private bool IsBatchBusy(BatchBulkEditModel batch) => processingBatchId == batch.BatchId;
 
+    private bool IsBatchPublishBusy(BatchBulkEditModel batch) => publishingBatchId == batch.BatchId;
+
     private bool IsTemplateBusy(CampaignTemplateUsageModel template) => processingTemplateId == template.Id;
 
+    private string? PublicClubUrl =>
+        string.IsNullOrWhiteSpace(publicSettings?.PublicSlug)
+            ? null
+            : Navigation.ToAbsoluteUri($"/club/{publicSettings.PublicSlug}").ToString();
+
+    private string PublicSessionUrl(Guid sessionId) =>
+        Navigation.ToAbsoluteUri($"/s/{sessionId}").ToString();
+
+    private static string FormatPublicationStatus(WebSession session) =>
+        session.IsPublic ? "Опубликована" : "Скрыта";
+
+    private static string GetPublicationStatusClass(WebSession session) =>
+        session.IsPublic ? "status-success" : "status-neutral";
+
+    private static string FormatBatchPublication(BatchBulkEditModel batch) =>
+        batch.PublicSessionCount == 0
+            ? "Все игры скрыты"
+            : batch.PublicSessionCount == batch.SessionCount
+                ? "Все игры опубликованы"
+                : $"{batch.PublicSessionCount}/{batch.SessionCount} опубликовано";
+
+    private string CoGmPlatform =>
+        string.IsNullOrWhiteSpace(groupManagement?.Group.Platform)
+            ? "Telegram"
+            : groupManagement.Group.Platform;
+
+    private string CoGmIdLabel => $"{CoGmPlatform} ID co-GM";
+
     private string CurrentUserRole =>
-        groupManagement?.Managers.FirstOrDefault(manager => manager.ExternalUserId == externalUserId)?.Role
+        groupManagement?.Managers.FirstOrDefault(manager =>
+            string.Equals(ManagerPlatform(manager), currentPlatform, StringComparison.OrdinalIgnoreCase) &&
+            ManagerExternalUserId(manager) == externalUserId)?.Role
         ?? GroupManagerRoleExtensions.CoGmValue;
 
     private static string FormatRole(string role) =>
         GroupManagerRoleExtensions.FromDatabaseValue(role).ToDisplayName();
 
-    private static string FormatManager(WebGroupManager manager)
+    private string FormatManager(WebGroupManager manager)
     {
-        var username = string.IsNullOrWhiteSpace(manager.TelegramUsername)
-            ? manager.TelegramId.ToString(System.Globalization.CultureInfo.InvariantCulture)
-            : "@" + manager.TelegramUsername;
+        var username = string.IsNullOrWhiteSpace(manager.ExternalUsername)
+            ? manager.TelegramUsername
+            : manager.ExternalUsername;
+        var identity = string.IsNullOrWhiteSpace(username)
+            ? $"{ManagerPlatform(manager)} {ManagerExternalUserId(manager)}"
+            : "@" + username.TrimStart('@');
 
-        return $"{FormatRole(manager.Role)} · {manager.DisplayName} · {username}";
+        return $"{FormatRole(manager.Role)} · {manager.DisplayName} · {identity}";
     }
 
+    private string ManagerPlatform(WebGroupManager manager) =>
+        string.IsNullOrWhiteSpace(manager.Platform) ? CoGmPlatform : manager.Platform;
+
+    private static string ManagerExternalUserId(WebGroupManager manager) =>
+        string.IsNullOrWhiteSpace(manager.ExternalUserId)
+            ? manager.TelegramId.ToString(System.Globalization.CultureInfo.InvariantCulture)
+            : manager.ExternalUserId;
+
+    private string ManagerKey(WebGroupManager manager) =>
+        $"{ManagerPlatform(manager)}:{ManagerExternalUserId(manager)}";
+
+    private static bool IsValidPlatformUserId(string platform, string externalUserId) =>
+        string.Equals(platform, "Telegram", StringComparison.OrdinalIgnoreCase)
+            ? long.TryParse(externalUserId, out var telegramId) && telegramId > 0
+            : !string.Equals(platform, "Discord", StringComparison.OrdinalIgnoreCase) ||
+              (ulong.TryParse(externalUserId, out var platformId) && platformId > 0);
+
     private static int InferIntervalDays(IReadOnlyList<WebSession> orderedSessions)
     {
         if (orderedSessions.Count < 2)
@@ -926,6 +1185,8 @@
         public DateTime LastScheduledAtLocal { get; init; } = DateTime.Now;
         public int IntervalDays { get; set; } = 7;
         public int SessionCount { get; init; }
+        public int PublicSessionCount { get; init; }
+        public bool AllSessionsPublic { get; init; }
         public string CloneInterval { get; set; } = "week";
     }
 
@@ -944,8 +1205,14 @@
 
     private sealed class CoGmEditModel
     {
-        public long? TelegramId { get; set; }
+        public string ExternalUserId { get; set; } = "";
         public string DisplayName { get; set; } = "";
-        public string? TelegramUsername { get; set; }
+        public string? ExternalUsername { get; set; }
+    }
+
+    private sealed class PublicSettingsEditModel
+    {
+        public bool PublicScheduleEnabled { get; set; }
+        public string? PublicSlug { get; set; }
     }
 }

src/GmRelay.Web/Components/Pages/Profile.razor

@@ -4,6 +4,7 @@
 @using Microsoft.Extensions.Configuration
 @attribute [Authorize]
 @inject ISessionStore SessionStore
+@inject AuthorizedSessionService AuthorizedSessionService
 @inject IConfiguration Configuration
 @inject NavigationManager Navigation
 
@@ -12,6 +13,65 @@
 <div class="profile-container">
     <h1 class="page-title">Профиль</h1>
 
+    @if (masterProfile is not null)
+    {
+        <div class="profile-card master-profile-card">
+            <div class="profile-card-header">
+                <div>
+                    <h2 class="section-title">Публичный профиль мастера</h2>
+                    <p class="muted-text">Показывается в каталоге, опубликованных играх и публичных страницах клуба.</p>
+                </div>
+                <span class="identity-badge">@(masterProfile.IsPublic ? "Публичный" : "Скрыт")</span>
+            </div>
+
+            <EditForm Model="@masterProfileModel" OnValidSubmit="SaveMasterProfile">
+                <div class="gm-form-group public-toggle-field">
+                    <label class="gm-checkbox-label">
+                        <InputCheckbox @bind-Value="masterProfileModel.IsPublic" />
+                        <span>Опубликовать профиль</span>
+                    </label>
+                </div>
+
+                <div class="profile-form-grid">
+                    <div class="gm-form-group">
+                        <label class="gm-form-label">Имя в публичном профиле</label>
+                        <InputText @bind-Value="masterProfileModel.DisplayName" class="gm-form-control" />
+                    </div>
+                    <div class="gm-form-group">
+                        <label class="gm-form-label">Короткий адрес</label>
+                        <InputText @bind-Value="masterProfileModel.PublicSlug" class="gm-form-control" />
+                        <div class="gm-form-hint">Латиница, цифры и дефисы, например `night-city-gm`.</div>
+                    </div>
+                </div>
+
+                <div class="gm-form-group">
+                    <label class="gm-form-label">Описание</label>
+                    <InputTextArea @bind-Value="masterProfileModel.Bio" class="gm-form-control master-profile-bio" />
+                </div>
+
+                <div class="public-settings-actions">
+                    <button type="submit" class="btn-gm btn-gm-primary" disabled="@savingMasterProfile">
+                        @(savingMasterProfile ? "Сохраняем..." : "Сохранить профиль")
+                    </button>
+                    @if (PublicMasterProfileUrl is not null)
+                    {
+                        <a href="@PublicMasterProfileUrl" target="_blank" rel="noopener noreferrer" class="btn-gm btn-gm-outline">
+                            Открыть публичный профиль
+                        </a>
+                    }
+                </div>
+            </EditForm>
+
+            @if (PublicMasterProfileUrl is not null)
+            {
+                <div class="public-link-row">
+                    <span>Ссылка профиля</span>
+                    <a href="@PublicMasterProfileUrl" target="_blank" rel="noopener noreferrer">@PublicMasterProfileUrl</a>
+                </div>
+            }
+        </div>
+    }
+
     @if (identities is null)
     {
         <p class="loading-text">Загрузка...</p>
@@ -92,11 +152,14 @@
 
 @code {
     private List<LinkedIdentity>? identities;
+    private MasterProfileSettings? masterProfile;
     private string? currentPlatform;
     private string? currentExternalUserId;
     private bool isUnlinking;
+    private bool savingMasterProfile;
     private string? errorMessage;
     private string? successMessage;
+    private MasterProfileEditModel masterProfileModel = new();
 
     [CascadingParameter]
     private Task<AuthenticationState>? AuthenticationStateTask { get; set; }
@@ -131,6 +194,7 @@
         }
 
         await LoadIdentities();
+        await LoadMasterProfile();
     }
 
     private async Task LoadIdentities()
@@ -152,6 +216,60 @@
         }
     }
 
+    private async Task LoadMasterProfile()
+    {
+        try
+        {
+            masterProfile = await AuthorizedSessionService.GetMasterProfileSettingsForCurrentUserAsync();
+            if (masterProfile is not null)
+            {
+                masterProfileModel = new MasterProfileEditModel
+                {
+                    DisplayName = masterProfile.DisplayName,
+                    PublicSlug = masterProfile.PublicSlug ?? string.Empty,
+                    IsPublic = masterProfile.IsPublic,
+                    Bio = masterProfile.Bio ?? string.Empty
+                };
+            }
+        }
+        catch (Exception ex)
+        {
+            errorMessage = $"Не удалось загрузить профиль мастера: {ex.Message}";
+        }
+    }
+
+    private string? PublicMasterProfileUrl =>
+        masterProfile?.IsPublic == true && !string.IsNullOrWhiteSpace(masterProfile.PublicSlug)
+            ? Navigation.ToAbsoluteUri($"/gm/{masterProfile.PublicSlug}").ToString()
+            : null;
+
+    private async Task SaveMasterProfile()
+    {
+        savingMasterProfile = true;
+        errorMessage = null;
+        successMessage = null;
+
+        try
+        {
+            await AuthorizedSessionService.UpdateMasterProfileSettingsForCurrentUserAsync(
+                masterProfileModel.PublicSlug,
+                masterProfileModel.IsPublic,
+                masterProfileModel.DisplayName,
+                masterProfileModel.Bio);
+
+            successMessage = "Публичный профиль мастера обновлён.";
+            await LoadMasterProfile();
+        }
+        catch (Exception ex)
+        {
+            errorMessage = $"Не удалось сохранить профиль мастера: {ex.Message}";
+        }
+        finally
+        {
+            savingMasterProfile = false;
+        }
+    }
+
     private bool HasLinkedPlatform(string platform)
     {
         return identities?.Any(i => i.Platform == platform) ?? false;
@@ -188,4 +306,12 @@
             isUnlinking = false;
         }
     }
+
+    private sealed class MasterProfileEditModel
+    {
+        public string DisplayName { get; set; } = string.Empty;
+        public string PublicSlug { get; set; } = string.Empty;
+        public bool IsPublic { get; set; }
+        public string Bio { get; set; } = string.Empty;
+    }
 }

src/GmRelay.Web/Components/Pages/PublicClub.razor

@@ -0,0 +1,132 @@
+@page "/club/{Slug}"
+@layout PublicLayout
+@inject ISessionStore SessionStore
+@inject NavigationManager Navigation
+
+<PageTitle>@PageTitleText</PageTitle>
+
+@if (loaded && club is null)
+{
+    <HeadContent>
+        <meta name="robots" content="noindex, nofollow" />
+    </HeadContent>
+
+    <section class="public-hero public-hero-compact">
+        <span class="status-badge status-neutral">Недоступно</span>
+        <h1>Публичная страница не найдена</h1>
+        <p>Расписание клуба выключено или адрес больше не используется.</p>
+    </section>
+}
+else if (!loaded)
+{
+    <section class="public-hero public-hero-compact">
+        <div class="skeleton skeleton-text" style="width: 55%; height: 2rem;"></div>
+        <div class="skeleton skeleton-text" style="width: 75%;"></div>
+    </section>
+}
+else if (club is not null)
+{
+    <HeadContent>
+        <meta name="description" content="@($"Публичное расписание клуба {club.Name} в GM-Relay.")" />
+    </HeadContent>
+
+    <section class="public-hero">
+        <span class="status-badge status-success">Публичное расписание</span>
+        <h1>@club.Name</h1>
+        <p>Открытые игры клуба без состава игроков, личных данных и приватных ссылок.</p>
+        <div class="public-share-row">
+            <span>Ссылка клуба</span>
+            <a href="@PublicClubUrl" target="_blank" rel="noopener noreferrer">@PublicClubUrl</a>
+        </div>
+        @if (!string.IsNullOrWhiteSpace(club.MasterProfileSlug))
+        {
+            <div class="public-share-row">
+                <span>Мастер</span>
+                <a href="@MasterProfilePath(club.MasterProfileSlug)" target="_blank" rel="noopener noreferrer">
+                    @(club.MasterDisplayName ?? "Профиль мастера")
+                </a>
+            </div>
+        }
+    </section>
+
+    @if (club.Sessions.Count == 0)
+    {
+        <div class="glass-card public-empty-state">
+            <h2>Опубликованных игр пока нет</h2>
+            <p>Когда owner или co-GM откроет сессии для публичного расписания, они появятся здесь.</p>
+        </div>
+    }
+    else
+    {
+        <div class="public-session-list">
+            @foreach (var session in club.Sessions)
+            {
+                <article class="public-session-card">
+                    <div class="public-session-main">
+                        <span class="status-badge @GetStatusClass(session.Status)">@TranslateStatus(session.Status)</span>
+                        <h2>@session.Title</h2>
+                        <div class="public-session-meta">
+                            <span>@session.ScheduledAt.FormatMoscow()</span>
+                            <span>@FormatSeats(session)</span>
+                        </div>
+                    </div>
+                    <a class="btn-gm btn-gm-outline" href="@PublicSessionPath(session.Id)">Открыть</a>
+                </article>
+            }
+        </div>
+    }
+}
+
+@code {
+    [Parameter] public string? Slug { get; set; }
+
+    private WebPublicClub? club;
+    private bool loaded;
+
+    private string PageTitleText => club is null ? "Публичный клуб — GM-Relay" : $"{club.Name} — GM-Relay";
+
+    private string PublicClubUrl =>
+        club is null
+            ? Navigation.ToAbsoluteUri($"/club/{Slug}").ToString()
+            : Navigation.ToAbsoluteUri($"/club/{club.Slug}").ToString();
+
+    protected override async Task OnParametersSetAsync()
+    {
+        loaded = false;
+        club = string.IsNullOrWhiteSpace(Slug)
+            ? null
+            : await SessionStore.GetPublicClubBySlugAsync(Slug.Trim());
+        loaded = true;
+    }
+
+    private string PublicSessionPath(Guid sessionId) => $"/s/{sessionId}";
+
+    private static string MasterProfilePath(string slug) => $"/gm/{slug}";
+
+    private static string FormatSeats(WebPublicSession session)
+    {
+        var seats = session.MaxPlayers.HasValue
+            ? $"{session.ActivePlayerCount}/{session.MaxPlayers.Value}"
+            : $"{session.ActivePlayerCount} игроков";
+
+        return session.WaitlistedPlayerCount > 0
+            ? $"{seats}, ожидание {session.WaitlistedPlayerCount}"
+            : seats;
+    }
+
+    private static string GetStatusClass(string status) => status switch
+    {
+        SessionStatus.Confirmed => "status-success",
+        SessionStatus.ConfirmationSent => "status-warning",
+        SessionStatus.Planned => "status-info",
+        _ => "status-neutral"
+    };
+
+    private static string TranslateStatus(string status) => status switch
+    {
+        SessionStatus.Planned => "Запланировано",
+        SessionStatus.ConfirmationSent => "Ждем подтверждения",
+        SessionStatus.Confirmed => "Подтверждено",
+        _ => status
+    };
+}

src/GmRelay.Web/Components/Pages/PublicMasterProfile.razor

@@ -0,0 +1,136 @@
+@page "/gm/{Slug}"
+@layout PublicLayout
+@inject ISessionStore SessionStore
+@inject NavigationManager Navigation
+
+<PageTitle>@PageTitleText</PageTitle>
+
+@if (loaded && profile is null)
+{
+    <HeadContent>
+        <meta name="robots" content="noindex, nofollow" />
+    </HeadContent>
+
+    <section class="public-hero public-hero-compact">
+        <span class="status-badge status-neutral">Недоступно</span>
+        <h1>Профиль мастера не найден</h1>
+        <p>Мастер скрыл профиль или этот короткий адрес больше не используется.</p>
+    </section>
+}
+else if (!loaded)
+{
+    <section class="public-hero public-hero-compact">
+        <div class="skeleton skeleton-text" style="width: 55%; height: 2rem;"></div>
+        <div class="skeleton skeleton-text" style="width: 75%;"></div>
+    </section>
+}
+else if (profile is not null)
+{
+    <HeadContent>
+        <meta name="description" content="@($"Публичный профиль мастера {profile.DisplayName} в GM-Relay.")" />
+    </HeadContent>
+
+    <section class="public-hero public-hero-compact master-profile-hero">
+        <span class="status-badge status-success">Мастер</span>
+        <h1>@profile.DisplayName</h1>
+        @if (!string.IsNullOrWhiteSpace(profile.Bio))
+        {
+            <p>@profile.Bio</p>
+        }
+        <div class="public-share-row">
+            <span>Ссылка профиля</span>
+            <a href="@PublicMasterProfileUrl" target="_blank" rel="noopener noreferrer">@PublicMasterProfileUrl</a>
+        </div>
+    </section>
+
+    @if (profile.Clubs.Count > 0)
+    {
+        <section class="glass-card master-profile-section">
+            <h2>Клубы</h2>
+            <div class="master-profile-club-list">
+                @foreach (var club in profile.Clubs)
+                {
+                    <a class="status-badge status-info" href="@($"/club/{club.Slug}")">@club.Name</a>
+                }
+            </div>
+        </section>
+    }
+
+    @if (profile.Sessions.Count == 0)
+    {
+        <div class="glass-card public-empty-state">
+            <h2>Опубликованных игр пока нет</h2>
+            <p>Когда мастер откроет игры для каталога, они появятся здесь.</p>
+        </div>
+    }
+    else
+    {
+        <div class="public-session-list">
+            @foreach (var session in profile.Sessions)
+            {
+                <article class="public-session-card">
+                    <div class="public-session-main">
+                        <span class="status-badge @GetStatusClass(session.Status)">@TranslateStatus(session.Status)</span>
+                        <h2>@session.Title</h2>
+                        <div class="public-session-meta">
+                            <span>@session.GroupName</span>
+                            <span>@session.ScheduledAt.FormatMoscow()</span>
+                            <span>@FormatSeats(session)</span>
+                        </div>
+                    </div>
+                    <a class="btn-gm btn-gm-outline" href="@($"/s/{session.Id}")">Открыть</a>
+                </article>
+            }
+        </div>
+    }
+}
+
+@code {
+    [Parameter] public string? Slug { get; set; }
+
+    private GmRelay.Web.Services.PublicMasterProfile? profile;
+    private bool loaded;
+
+    private string PageTitleText => profile is null ? "Профиль мастера — GM-Relay" : $"{profile.DisplayName} — GM-Relay";
+
+    private string PublicMasterProfileUrl =>
+        profile is null
+            ? Navigation.ToAbsoluteUri($"/gm/{Slug}").ToString()
+            : Navigation.ToAbsoluteUri($"/gm/{profile.Slug}").ToString();
+
+    protected override async Task OnParametersSetAsync()
+    {
+        loaded = false;
+        profile = string.IsNullOrWhiteSpace(Slug)
+            ? null
+            : await SessionStore.GetPublicMasterProfileBySlugAsync(Slug.Trim());
+        loaded = true;
+    }
+
+    private static string FormatSeats(WebPublicSession session)
+    {
+        var seats = session.MaxPlayers.HasValue
+            ? $"{session.ActivePlayerCount}/{session.MaxPlayers.Value}"
+            : $"{session.ActivePlayerCount} игроков";
+
+        return session.WaitlistedPlayerCount > 0
+            ? $"{seats}, ожидание {session.WaitlistedPlayerCount}"
+            : seats;
+    }
+
+    private static string GetStatusClass(string status) => status switch
+    {
+        SessionStatus.Confirmed => "status-success",
+        SessionStatus.ConfirmationSent => "status-warning",
+        SessionStatus.Planned => "status-info",
+        _ => "status-neutral"
+    };
+
+    private static string TranslateStatus(string status) => status switch
+    {
+        SessionStatus.Planned => "Запланировано",
+        SessionStatus.ConfirmationSent => "Ждем подтверждения",
+        SessionStatus.Confirmed => "Подтверждено",
+        _ => status
+    };
+}

src/GmRelay.Web/Components/Pages/PublicSession.razor

@@ -0,0 +1,248 @@
+@page "/s/{SessionId:guid}"
+@layout PublicLayout
+@inject ISessionStore SessionStore
+@inject NavigationManager Navigation
+@inject AuthenticationStateProvider AuthStateProvider
+@using GmRelay.Shared.Features.Showcase
+@using GmRelay.Web.Services
+
+<PageTitle>@PageTitleText</PageTitle>
+
+@if (loaded && session is null)
+{
+    <HeadContent>
+        <meta name="robots" content="noindex, nofollow" />
+    </HeadContent>
+
+    <section class="public-hero public-hero-compact">
+        <span class="status-badge status-neutral">Недоступно</span>
+        <h1>Сессия не опубликована</h1>
+        <p>Эта игра скрыта, отменена, уже прошла или клуб выключил публичное расписание.</p>
+    </section>
+}
+else if (!loaded)
+{
+    <section class="public-hero public-hero-compact">
+        <div class="skeleton skeleton-text" style="width: 55%; height: 2rem;"></div>
+        <div class="skeleton skeleton-text" style="width: 75%;"></div>
+    </section>
+}
+else if (session is not null)
+{
+    <HeadContent>
+        <meta name="description" content="@($"Публичная сессия {session.Title} клуба {session.GroupName} в GM-Relay.")" />
+    </HeadContent>
+
+    @if (!string.IsNullOrWhiteSpace(session.CoverImageUrl))
+    {
+        <div class="session-cover-hero" style="background-image: url('@session.CoverImageUrl')"></div>
+    }
+
+    <section class="public-hero public-hero-compact">
+        <span class="status-badge @GetStatusClass(session.Status)">@TranslateStatus(session.Status)</span>
+        <h1>@session.Title</h1>
+        <p>@session.GroupName</p>
+        @if (!string.IsNullOrWhiteSpace(session.MasterProfileSlug))
+        {
+            <div class="public-master-link">
+                <span>Мастер</span>
+                <a href="@MasterProfilePath(session.MasterProfileSlug)">@(session.MasterDisplayName ?? "Профиль мастера")</a>
+            </div>
+        }
+        <div class="session-badges">
+            @if (!string.IsNullOrWhiteSpace(session.System))
+            {
+                <span class="status-badge status-info">@GetSystemDisplayName(session.System)</span>
+            }
+            @if (session.IsOneShot)
+            {
+                <span class="status-badge status-warning">Ваншот</span>
+            }
+            @if (!string.IsNullOrWhiteSpace(session.Format))
+            {
+                <span class="status-badge status-neutral">@TranslateFormat(session.Format)</span>
+            }
+        </div>
+    </section>
+
+    <article class="glass-card public-session-detail">
+        <div class="public-detail-grid">
+            <div>
+                <span>Время</span>
+                <strong>@session.ScheduledAt.FormatMoscow()</strong>
+            </div>
+            <div>
+                <span>Места</span>
+                <strong>@FormatSeats(session)</strong>
+            </div>
+            <div>
+                <span>Статус</span>
+                <strong>@TranslateStatus(session.Status)</strong>
+            </div>
+            @if (session.DurationMinutes.HasValue)
+            {
+                <div>
+                    <span>Длительность</span>
+                    <strong>@FormatDuration(session.DurationMinutes.Value)</strong>
+                </div>
+            }
+        </div>
+
+        @if (!string.IsNullOrWhiteSpace(session.Description))
+        {
+            <div class="session-description">
+                <h3>Описание</h3>
+                <p>@session.Description</p>
+            </div>
+        }
+
+        @if (registrationResult is not null)
+        {
+            <div class="glass-card @GetRegistrationResultClass()">
+                <p>@registrationResult</p>
+            </div>
+        }
+
+        <div class="public-settings-actions">
+            @if (!string.IsNullOrWhiteSpace(session.GroupSlug))
+            {
+                <a class="btn-gm btn-gm-primary" href="@($"/club/{session.GroupSlug}")">Расписание клуба</a>
+            }
+            @if (!string.IsNullOrWhiteSpace(session.MasterProfileSlug))
+            {
+                <a class="btn-gm btn-gm-outline" href="@MasterProfilePath(session.MasterProfileSlug)">Мастер</a>
+            }
+            <a class="btn-gm btn-gm-outline" href="@PublicSessionUrl" target="_blank" rel="noopener noreferrer">Ссылка на сессию</a>
+            @if (session.AllowDirectRegistration)
+            {
+                @if (isAuthenticated)
+                {
+                    <button class="btn-gm btn-gm-primary" @onclick="RegisterAsync">Записаться</button>
+                }
+                else
+                {
+                    <a class="btn-gm btn-gm-primary" href="@GetLoginUrl()">Войти, чтобы записаться</a>
+                }
+            }
+        </div>
+    </article>
+}
+
+@code {
+    [Parameter] public Guid SessionId { get; set; }
+
+    private ShowcaseSessionDto? session;
+    private bool loaded;
+    private bool isAuthenticated;
+    private string? registrationResult;
+
+    private string PageTitleText => session is null ? "Публичная сессия — GM-Relay" : $"{session.Title} — GM-Relay";
+
+    private string PublicSessionUrl => Navigation.ToAbsoluteUri($"/s/{SessionId}").ToString();
+
+    private static string MasterProfilePath(string slug) => $"/gm/{slug}";
+
+    protected override async Task OnParametersSetAsync()
+    {
+        loaded = false;
+        registrationResult = null;
+        session = await SessionStore.GetShowcaseSessionAsync(SessionId);
+
+        var authState = await AuthStateProvider.GetAuthenticationStateAsync();
+        isAuthenticated = authState.User.Identity?.IsAuthenticated ?? false;
+
+        var uri = Navigation.ToAbsoluteUri(Navigation.Uri);
+        var query = Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(uri.Query);
+        var shouldRegister = query.TryGetValue("register", out var val) && val == "1";
+
+        if (session is not null && shouldRegister && session.AllowDirectRegistration)
+        {
+            if (isAuthenticated && authState.User.TryGetPlatformIdentity(out var platform, out var externalUserId))
+            {
+                var success = await SessionStore.RegisterFromShowcaseAsync(SessionId, platform, externalUserId, authState.User.Identity?.Name ?? "Игрок");
+                registrationResult = success
+                    ? "Вы успешно записались на игру!"
+                    : "Не удалось записаться. Возможно, места закончились или вы уже зарегистрированы.";
+            }
+            else if (!isAuthenticated)
+            {
+                Navigation.NavigateTo($"/login?returnUrl={Uri.EscapeDataString($"/s/{SessionId}")}");
+                return;
+            }
+        }
+
+        loaded = true;
+    }
+
+    private async Task RegisterAsync()
+    {
+        var authState = await AuthStateProvider.GetAuthenticationStateAsync();
+        if (authState.User.TryGetPlatformIdentity(out var platform, out var externalUserId))
+        {
+            var success = await SessionStore.RegisterFromShowcaseAsync(SessionId, platform, externalUserId, authState.User.Identity?.Name ?? "Игрок");
+            registrationResult = success
+                ? "Вы успешно записались на игру!"
+                : "Не удалось записаться. Возможно, места закончились или вы уже зарегистрированы.";
+        }
+    }
+
+    private string GetLoginUrl() => $"/login?returnUrl={Uri.EscapeDataString($"/s/{SessionId}?register=1")}";
+
+    private string GetRegistrationResultClass() => registrationResult?.StartsWith("Вы успешно") == true ? "status-success-bg" : "status-warning-bg";
+
+    private static string FormatSeats(ShowcaseSessionDto session)
+    {
+        var seats = session.MaxPlayers.HasValue
+            ? $"{session.ActivePlayerCount}/{session.MaxPlayers.Value}"
+            : $"{session.ActivePlayerCount} игроков";
+
+        return session.WaitlistedPlayerCount > 0
+            ? $"{seats}, ожидание {session.WaitlistedPlayerCount}"
+            : seats;
+    }
+
+    private static string FormatDuration(int minutes)
+    {
+        if (minutes < 60)
+            return $"{minutes} мин";
+
+        var hours = minutes / 60;
+        var mins = minutes % 60;
+        return mins > 0 ? $"{hours} ч {mins} мин" : $"{hours} ч";
+    }
+
+    private static string GetSystemDisplayName(string? system)
+    {
+        if (string.IsNullOrWhiteSpace(system))
+            return system ?? string.Empty;
+
+        if (Enum.TryParse<GameSystem>(system, out var gs))
+            return gs.ToDisplayName();
+
+        return system;
+    }
+
+    private static string TranslateFormat(string format) => format switch
+    {
+        "Online" => "Онлайн",
+        "Offline" => "Офлайн",
+        "Hybrid" => "Гибрид",
+        _ => format
+    };
+
+    private static string GetStatusClass(string status) => status switch
+    {
+        SessionStatus.Confirmed => "status-success",
+        SessionStatus.ConfirmationSent => "status-warning",
+        SessionStatus.Planned => "status-info",
+        _ => "status-neutral"
+    };
+
+    private static string TranslateStatus(string status) => status switch
+    {
+        SessionStatus.Planned => "Запланировано",
+        SessionStatus.ConfirmationSent => "Ждем подтверждения",
+        SessionStatus.Confirmed => "Подтверждено",
+        _ => status
+    };
+}

src/GmRelay.Web/Components/Pages/Showcase.razor

@@ -0,0 +1,453 @@
+@page "/showcase"
+@layout PublicLayout
+@inject ISessionStore SessionStore
+@inject NavigationManager Navigation
+@using GmRelay.Shared.Features.Showcase
+
+<PageTitle>Каталог игр — GM-Relay</PageTitle>
+
+<HeadContent>
+    <meta name="description" content="Каталог настольных ролевых игр GM-Relay. Найдите игру по душе — ваншоты, кампании, онлайн и офлайн." />
+</HeadContent>
+
+<section class="public-hero">
+    <h1>Каталог игр</h1>
+    <p>Найдите настольную ролевую игру по душе — ваншоты, кампании, онлайн и офлайн.</p>
+</section>
+
+<section class="glass-card showcase-filters">
+    <div class="showcase-filter-group">
+        <span class="showcase-filter-label">Когда</span>
+        <div class="showcase-filter-buttons">
+            <button class="btn-gm @(filter.Date == DateFilter.Today ? "btn-gm-primary" : "btn-gm-outline")" @onclick="() => SetDate(DateFilter.Today)">Сегодня</button>
+            <button class="btn-gm @(filter.Date == DateFilter.Tomorrow ? "btn-gm-primary" : "btn-gm-outline")" @onclick="() => SetDate(DateFilter.Tomorrow)">Завтра</button>
+            <button class="btn-gm @(filter.Date == DateFilter.ThisWeek ? "btn-gm-primary" : "btn-gm-outline")" @onclick="() => SetDate(DateFilter.ThisWeek)">На этой неделе</button>
+            <button class="btn-gm @(filter.Date == DateFilter.All ? "btn-gm-primary" : "btn-gm-outline")" @onclick="() => SetDate(DateFilter.All)">Все</button>
+        </div>
+    </div>
+
+    <div class="showcase-filter-group">
+        <span class="showcase-filter-label">Места</span>
+        <div class="showcase-filter-buttons">
+            <button class="btn-gm @(filter.Seats == SeatFilter.Available ? "btn-gm-primary" : "btn-gm-outline")" @onclick="() => SetSeats(SeatFilter.Available)">Есть места</button>
+            <button class="btn-gm @(filter.Seats == SeatFilter.Waitlist ? "btn-gm-primary" : "btn-gm-outline")" @onclick="() => SetSeats(SeatFilter.Waitlist)">Лист ожидания</button>
+            <button class="btn-gm @(filter.Seats == SeatFilter.Any ? "btn-gm-primary" : "btn-gm-outline")" @onclick="() => SetSeats(SeatFilter.Any)">Любые</button>
+        </div>
+    </div>
+
+    <div class="showcase-filter-group">
+        <label class="showcase-filter-label" for="system-filter">Система</label>
+        <select id="system-filter" class="gm-form-control showcase-filter-select" aria-label="Система" @onchange="OnSystemChanged">
+            <option value="" selected="@(filter.System is null)">Любая</option>
+            @foreach (var system in Enum.GetValues<GameSystem>())
+            {
+                var name = system.ToString();
+                <option value="@name" selected="@(filter.System == name)">@system.ToDisplayName()</option>
+            }
+        </select>
+    </div>
+
+    <div class="showcase-filter-group">
+        <span class="showcase-filter-label">Тип</span>
+        <div class="showcase-filter-buttons">
+            <button class="btn-gm @(filter.IsOneShot == true ? "btn-gm-primary" : "btn-gm-outline")" @onclick="() => SetOneShot(true)">Ваншот</button>
+            <button class="btn-gm @(filter.IsOneShot == false ? "btn-gm-primary" : "btn-gm-outline")" @onclick="() => SetOneShot(false)">Кампания</button>
+            <button class="btn-gm @(filter.IsOneShot is null ? "btn-gm-primary" : "btn-gm-outline")" @onclick="() => SetOneShot(null)">Любое</button>
+        </div>
+    </div>
+
+    <div class="showcase-filter-group">
+        <span class="showcase-filter-label">Формат</span>
+        <div class="showcase-filter-buttons">
+            <button class="btn-gm @(filter.Format == "Online" ? "btn-gm-primary" : "btn-gm-outline")" @onclick="@(() => SetFormat("Online"))">Онлайн</button>
+            <button class="btn-gm @(filter.Format == "Offline" ? "btn-gm-primary" : "btn-gm-outline")" @onclick="@(() => SetFormat("Offline"))">Офлайн</button>
+            <button class="btn-gm @(filter.Format == "Hybrid" ? "btn-gm-primary" : "btn-gm-outline")" @onclick="@(() => SetFormat("Hybrid"))">Гибрид</button>
+            <button class="btn-gm @(filter.Format is null ? "btn-gm-primary" : "btn-gm-outline")" @onclick="@(() => SetFormat((string?)null))">Любой</button>
+        </div>
+    </div>
+</section>
+
+@if (loading && sessions.Count == 0)
+{
+    <div class="showcase-grid">
+        @for (var i = 0; i < 6; i++)
+        {
+            <div class="glass-card showcase-card showcase-skeleton">
+                <div class="skeleton showcase-skeleton-image"></div>
+                <div class="showcase-card-body">
+                    <div class="skeleton skeleton-text" style="width: 70%;"></div>
+                    <div class="skeleton skeleton-text" style="width: 45%;"></div>
+                    <div class="skeleton skeleton-text" style="width: 55%;"></div>
+                </div>
+            </div>
+        }
+    </div>
+}
+else if (!loading && sessions.Count == 0)
+{
+    <div class="glass-card public-empty-state">
+        <h2>Игры не найдены</h2>
+        <p>Попробуйте изменить фильтры или загляните позже — новые сессии появляются каждый день.</p>
+    </div>
+}
+else
+{
+    <div class="showcase-grid">
+        @foreach (var session in sessions)
+        {
+            <article class="glass-card showcase-card animate-fade-in">
+                <div class="showcase-card-image"
+                     style="@(string.IsNullOrWhiteSpace(session.CoverImageUrl)
+                         ? $"background: {GetGradientStyle(session.Id)}; background-size: cover; background-position: center;"
+                         : $"background-image: url({session.CoverImageUrl}); background-size: cover; background-position: center;")">
+                </div>
+                <div class="showcase-card-body">
+                    <div class="showcase-card-badges">
+                        @if (!string.IsNullOrWhiteSpace(session.System))
+                        {
+                            <span class="status-badge status-info">@GetSystemDisplayName(session.System)</span>
+                        }
+                        @if (session.IsOneShot)
+                        {
+                            <span class="status-badge status-warning">Ваншот</span>
+                        }
+                        @if (!string.IsNullOrWhiteSpace(session.Format))
+                        {
+                            <span class="status-badge status-neutral">@TranslateFormat(session.Format)</span>
+                        }
+                    </div>
+                    <h2 class="showcase-card-title">@session.Title</h2>
+                    <div class="showcase-card-meta">
+                        <span>@session.ScheduledAt.FormatMoscow()</span>
+                        @if (session.DurationMinutes.HasValue)
+                        {
+                            <span>@FormatDuration(session.DurationMinutes.Value)</span>
+                        }
+                    </div>
+                    <div class="showcase-card-seats">
+                        <span>@FormatSeats(session)</span>
+                    </div>
+                    <div class="showcase-card-club">
+                        <span>@session.GroupName</span>
+                    </div>
+                    @if (!string.IsNullOrWhiteSpace(session.MasterProfileSlug))
+                    {
+                        <div class="showcase-card-master">
+                            <a href="@MasterProfilePath(session.MasterProfileSlug)">@(session.MasterDisplayName ?? "Профиль мастера")</a>
+                        </div>
+                    }
+                    <div class="showcase-card-actions">
+                        <a class="btn-gm btn-gm-outline" href="@($"/s/{session.Id}")">Подробнее</a>
+                        @if (session.AllowDirectRegistration)
+                        {
+                            <a class="btn-gm btn-gm-primary" href="@($"/s/{session.Id}?register=1")">Записаться</a>
+                        }
+                    </div>
+                </div>
+            </article>
+        }
+    </div>
+
+    @if (hasMore)
+    {
+        <div class="showcase-load-more">
+            <button class="btn-gm btn-gm-primary" @onclick="LoadMoreAsync" disabled="@loading">
+                @if (loading)
+                {
+                    <span>Загрузка...</span>
+                }
+                else
+                {
+                    <span>Загрузить ещё</span>
+                }
+            </button>
+        </div>
+    }
+}
+
+<style>
+    .showcase-filters {
+        display: flex;
+        flex-wrap: wrap;
+        gap: 1rem 1.5rem;
+        margin-bottom: 1.5rem;
+        padding: 1.25rem;
+    }
+
+    .showcase-filter-group {
+        display: flex;
+        flex-direction: column;
+        gap: 0.375rem;
+    }
+
+    .showcase-filter-label {
+        font-size: 0.75rem;
+        font-weight: 600;
+        color: var(--text-muted);
+        text-transform: uppercase;
+        letter-spacing: 0.05em;
+        font-family: 'Jura', sans-serif;
+    }
+
+    .showcase-filter-buttons {
+        display: flex;
+        flex-wrap: wrap;
+        gap: 0.375rem;
+    }
+
+    .showcase-filter-buttons .btn-gm {
+        padding: 0.375rem 0.75rem;
+        font-size: 0.8125rem;
+    }
+
+    .showcase-filter-select {
+        min-width: 180px;
+        width: auto;
+    }
+
+    .showcase-grid {
+        display: grid;
+        grid-template-columns: 1fr;
+        gap: 1rem;
+        margin-bottom: 1.5rem;
+    }
+
+    @@media (min-width: 640px) {
+        .showcase-grid {
+            grid-template-columns: repeat(2, 1fr);
+        }
+    }
+
+    @@media (min-width: 1024px) {
+        .showcase-grid {
+            grid-template-columns: repeat(3, 1fr);
+        }
+    }
+
+    .showcase-card {
+        padding: 0;
+        overflow: hidden;
+        display: flex;
+        flex-direction: column;
+    }
+
+    .showcase-card-image {
+        height: 160px;
+        background-size: cover;
+        background-position: center;
+    }
+
+    .showcase-card-body {
+        padding: 1rem;
+        display: flex;
+        flex-direction: column;
+        gap: 0.5rem;
+        flex: 1;
+    }
+
+    .showcase-card-badges {
+        display: flex;
+        flex-wrap: wrap;
+        gap: 0.375rem;
+    }
+
+    .showcase-card-title {
+        font-size: 1.0625rem;
+        margin: 0;
+        font-family: 'Cinzel', serif;
+        overflow-wrap: anywhere;
+    }
+
+    .showcase-card-meta,
+    .showcase-card-seats,
+    .showcase-card-club,
+    .showcase-card-master {
+        font-size: 0.8125rem;
+        color: var(--text-secondary);
+        font-family: 'Jura', sans-serif;
+    }
+
+    .showcase-card-club {
+        color: var(--text-muted);
+    }
+
+    .showcase-card-master a {
+        color: var(--accent-primary);
+        text-decoration: none;
+        font-weight: 600;
+    }
+
+    .showcase-card-actions {
+        margin-top: auto;
+        padding-top: 0.75rem;
+        display: flex;
+        gap: 0.5rem;
+        flex-wrap: wrap;
+    }
+
+    .showcase-card-actions .btn-gm {
+        flex: 1;
+        justify-content: center;
+    }
+
+    .showcase-load-more {
+        display: flex;
+        justify-content: center;
+        margin-bottom: 2rem;
+    }
+
+    .showcase-skeleton {
+        padding: 0;
+        overflow: hidden;
+    }
+
+    .showcase-skeleton-image {
+        height: 160px;
+        border-radius: 0;
+    }
+
+    .showcase-skeleton .showcase-card-body {
+        padding: 1rem;
+    }
+
+    .showcase-skeleton .skeleton-text {
+        margin-bottom: 0.5rem;
+    }
+</style>
+
+@code {
+    private ShowcaseFilter filter = new();
+    private List<ShowcaseSessionDto> sessions = new();
+    private bool loading;
+    private bool hasMore;
+    private int page = 1;
+    private const int PageSize = 12;
+
+    protected override async Task OnInitializedAsync()
+    {
+        await LoadAsync();
+    }
+
+    private async Task LoadAsync()
+    {
+        loading = true;
+        try
+        {
+            page = 1;
+            sessions.Clear();
+            var results = await SessionStore.GetShowcaseSessionsAsync(filter, page, PageSize);
+            sessions.AddRange(results);
+            hasMore = results.Count == PageSize;
+        }
+        finally
+        {
+            loading = false;
+        }
+    }
+
+    private async Task LoadMoreAsync()
+    {
+        if (loading)
+            return;
+
+        loading = true;
+        try
+        {
+            page++;
+            var results = await SessionStore.GetShowcaseSessionsAsync(filter, page, PageSize);
+            sessions.AddRange(results);
+            hasMore = results.Count == PageSize;
+        }
+        finally
+        {
+            loading = false;
+        }
+    }
+
+    private async Task OnFilterChanged()
+    {
+        await LoadAsync();
+    }
+
+    private async Task SetDate(DateFilter value)
+    {
+        filter = filter with { Date = value };
+        await OnFilterChanged();
+    }
+
+    private async Task SetSeats(SeatFilter value)
+    {
+        filter = filter with { Seats = value };
+        await OnFilterChanged();
+    }
+
+    private async Task OnSystemChanged(ChangeEventArgs e)
+    {
+        var value = e.Value?.ToString();
+        filter = filter with { System = string.IsNullOrWhiteSpace(value) ? null : value };
+        await OnFilterChanged();
+    }
+
+    private async Task SetOneShot(bool? value)
+    {
+        filter = filter with { IsOneShot = value };
+        await OnFilterChanged();
+    }
+
+    private async Task SetFormat(string? value)
+    {
+        filter = filter with { Format = value };
+        await OnFilterChanged();
+    }
+
+    private static string GetGradientStyle(Guid id)
+    {
+        var bytes = id.ToByteArray();
+        var hue1 = bytes[0] % 360;
+        var hue2 = (bytes[1] + 120) % 360;
+        return $"linear-gradient(135deg, hsl({hue1}, 55%, 28%) 0%, hsl({hue2}, 55%, 20%) 100%)";
+    }
+
+    private static string GetSystemDisplayName(string? system)
+    {
+        if (string.IsNullOrWhiteSpace(system))
+            return system ?? string.Empty;
+
+        if (Enum.TryParse<GameSystem>(system, out var gs))
+            return gs.ToDisplayName();
+
+        return system;
+    }
+
+    private static string FormatSeats(ShowcaseSessionDto session)
+    {
+        var seats = session.MaxPlayers.HasValue
+            ? $"{session.ActivePlayerCount}/{session.MaxPlayers.Value}"
+            : $"{session.ActivePlayerCount} игроков";
+
+        if (session.WaitlistedPlayerCount > 0)
+            seats += $", ожидание {session.WaitlistedPlayerCount}";
+
+        return seats;
+    }
+
+    private static string FormatDuration(int minutes)
+    {
+        if (minutes < 60)
+            return $"{minutes} мин";
+
+        var hours = minutes / 60;
+        var mins = minutes % 60;
+        return mins > 0 ? $"{hours} ч {mins} мин" : $"{hours} ч";
+    }
+
+    private static string MasterProfilePath(string slug) => $"/gm/{slug}";
+
+    private static string TranslateFormat(string format) => format switch
+    {
+        "Online" => "Онлайн",
+        "Offline" => "Офлайн",
+        "Hybrid" => "Гибрид",
+        _ => format
+    };
+}

src/GmRelay.Web/Program.cs

@@ -161,6 +161,7 @@ app.MapGet("/auth/telegram", async (HttpContext context, TelegramAuthService aut
 app.MapPost("/auth/telegram-webapp", async (
     HttpContext context,
     TelegramAuthService authService,
+    ISessionStore sessionStore,
     TelegramWebAppAuthRequest request) =>
 {
     if (!authService.VerifyWebAppInitData(request.InitData, out var telegramId, out var name))
@@ -168,6 +169,8 @@ app.MapPost("/auth/telegram-webapp", async (
         return Results.Unauthorized();
     }
 
+    await sessionStore.UpsertPlayerAsync("Telegram", telegramId.ToString(System.Globalization.CultureInfo.InvariantCulture), name, null);
+
     var authProperties = new AuthenticationProperties { IsPersistent = true };
     await context.SignInAsync(
         CookieAuthenticationDefaults.AuthenticationScheme,
@@ -180,6 +183,7 @@ app.MapPost("/auth/telegram-webapp", async (
 app.MapPost("/auth/telegram-login", async (
     HttpContext context,
     TelegramAuthService authService,
+    ISessionStore sessionStore,
     TelegramLoginPayload request) =>
 {
     if (!authService.VerifyLoginPayload(request, out var telegramId, out var name))
@@ -187,6 +191,8 @@ app.MapPost("/auth/telegram-login", async (
         return Results.Unauthorized();
     }
 
+    await sessionStore.UpsertPlayerAsync("Telegram", telegramId.ToString(System.Globalization.CultureInfo.InvariantCulture), name, null);
+
     var authProperties = new AuthenticationProperties { IsPersistent = true };
     await context.SignInAsync(
         CookieAuthenticationDefaults.AuthenticationScheme,

src/GmRelay.Web/Services/AuthorizedSessionService.cs

@@ -1,4 +1,5 @@
 using System.Security.Claims;
+using System.Text.RegularExpressions;
 using GmRelay.Shared.Domain;
 
 namespace GmRelay.Web.Services;
@@ -54,6 +55,117 @@ public sealed class AuthorizedSessionService(ISessionStore sessionStore, IHttpCo
         return await sessionStore.GetUpcomingSessionsAsync(groupId);
     }
 
+    public async Task<WebPublicGroupSettings?> GetPublicGroupSettingsForCurrentUserAsync(Guid groupId)
+    {
+        var identity = GetCurrentIdentity();
+        if (identity is null)
+            return null;
+
+        if (!await sessionStore.IsGroupManagerAsync(groupId, identity.Value.Platform, identity.Value.ExternalUserId))
+            return null;
+
+        return await sessionStore.GetPublicGroupSettingsAsync(groupId);
+    }
+
+    public async Task UpdatePublicGroupSettingsForCurrentUserAsync(
+        Guid groupId,
+        string? publicSlug,
+        bool publicScheduleEnabled)
+    {
+        var identity = GetCurrentIdentity();
+        if (identity is null)
+            throw new InvalidOperationException("User is not authenticated.");
+
+        if (!await sessionStore.IsGroupManagerAsync(groupId, identity.Value.Platform, identity.Value.ExternalUserId))
+        {
+            throw new SessionAccessDeniedException(groupId, identity.Value.ExternalUserId);
+        }
+
+        var normalizedSlug = NormalizePublicSlug(publicSlug);
+        if (publicScheduleEnabled && normalizedSlug is null)
+        {
+            throw new InvalidOperationException("Для публичной страницы нужен короткий адрес.");
+        }
+
+        await sessionStore.UpdatePublicGroupSettingsAsync(groupId, normalizedSlug, publicScheduleEnabled);
+    }
+
+    public Task<MasterProfileSettings?> GetMasterProfileSettingsForCurrentUserAsync()
+    {
+        var identity = GetCurrentIdentity();
+        if (identity is null)
+            return Task.FromResult<MasterProfileSettings?>(null);
+
+        return sessionStore.GetMasterProfileSettingsAsync(identity.Value.Platform, identity.Value.ExternalUserId);
+    }
+
+    public async Task UpdateMasterProfileSettingsForCurrentUserAsync(
+        string? publicSlug,
+        bool isPublic,
+        string displayName,
+        string? bio)
+    {
+        var identity = GetCurrentIdentity();
+        if (identity is null)
+            throw new InvalidOperationException("User is not authenticated.");
+
+        var normalizedDisplayName = displayName.Trim();
+        if (normalizedDisplayName.Length is < 2 or > 120)
+        {
+            throw new InvalidOperationException("Имя профиля должно быть от 2 до 120 символов.");
+        }
+
+        var normalizedBio = string.IsNullOrWhiteSpace(bio) ? null : bio.Trim();
+        if (normalizedBio?.Length > 1200)
+        {
+            throw new InvalidOperationException("Описание профиля должно быть не длиннее 1200 символов.");
+        }
+
+        var normalizedSlug = NormalizeMasterProfileSlug(publicSlug);
+        if (isPublic && normalizedSlug is null)
+        {
+            throw new InvalidOperationException("Для публичного профиля нужен короткий адрес.");
+        }
+
+        await sessionStore.UpdateMasterProfileSettingsAsync(
+            identity.Value.Platform,
+            identity.Value.ExternalUserId,
+            normalizedSlug,
+            isPublic,
+            normalizedDisplayName,
+            normalizedBio);
+    }
+
+    public async Task SetSessionPublicForCurrentUserAsync(Guid sessionId, bool isPublic)
+    {
+        var identity = GetCurrentIdentity();
+        if (identity is null)
+            throw new InvalidOperationException("User is not authenticated.");
+
+        var session = await GetSessionForCurrentUserAsync(sessionId);
+        if (session is null)
+        {
+            throw new SessionAccessDeniedException(sessionId, identity.Value.ExternalUserId);
+        }
+
+        await sessionStore.SetSessionPublicAsync(sessionId, session.GroupId, isPublic);
+    }
+
+    public async Task SetBatchPublicForCurrentUserAsync(Guid batchId, bool isPublic)
+    {
+        var identity = GetCurrentIdentity();
+        if (identity is null)
+            throw new InvalidOperationException("User is not authenticated.");
+
+        var batch = await GetBatchForCurrentUserAsync(batchId);
+        if (batch is null)
+        {
+            throw new SessionAccessDeniedException(batchId, identity.Value.ExternalUserId);
+        }
+
+        await sessionStore.SetBatchPublicAsync(batchId, batch.GroupId, isPublic);
+    }
+
     public async Task<WebSession?> GetSessionForCurrentUserAsync(Guid sessionId)
     {
         var identity = GetCurrentIdentity();
@@ -390,4 +502,22 @@ public sealed class AuthorizedSessionService(ISessionStore sessionStore, IHttpCo
             JoinLink = joinLink
         };
     }
+
+    private static string? NormalizePublicSlug(string? publicSlug)
+    {
+        if (string.IsNullOrWhiteSpace(publicSlug))
+        {
+            return null;
+        }
+
+        var slug = Regex.Replace(publicSlug.Trim().ToLowerInvariant(), @"[\s_]+", "-").Trim('-');
+        if (slug.Length is < 3 or > 80 || !Regex.IsMatch(slug, "^[a-z0-9]+(?:-[a-z0-9]+)*$"))
+        {
+            throw new InvalidOperationException("Короткий адрес может содержать только латинские буквы, цифры и дефисы.");
+        }
+
+        return slug;
+    }
+
+    private static string? NormalizeMasterProfileSlug(string? publicSlug) => NormalizePublicSlug(publicSlug);
 }

src/GmRelay.Web/Services/ISessionStore.cs

@@ -1,4 +1,5 @@
 using GmRelay.Shared.Domain;
+using GmRelay.Shared.Features.Showcase;
 
 namespace GmRelay.Web.Services;
 
@@ -24,10 +25,64 @@ public sealed record SessionAuditLogEntry(
     string? NewValue,
     DateTime ChangedAt);
 
+public sealed record WebPublicGroupSettings(
+    Guid GroupId,
+    string GroupName,
+    string? PublicSlug,
+    bool PublicScheduleEnabled,
+    int PublicSessionCount);
+
+public sealed record WebPublicSession(
+    Guid Id,
+    Guid GroupId,
+    string GroupName,
+    string? GroupSlug,
+    string Title,
+    DateTime ScheduledAt,
+    string Status,
+    int? MaxPlayers,
+    int ActivePlayerCount,
+    int WaitlistedPlayerCount,
+    string? MasterProfileSlug = null,
+    string? MasterDisplayName = null);
+
+public sealed record WebPublicClub(
+    Guid GroupId,
+    string Name,
+    string Slug,
+    IReadOnlyList<WebPublicSession> Sessions,
+    string? MasterProfileSlug = null,
+    string? MasterDisplayName = null);
+
+public sealed record MasterProfileSettings(
+    Guid PlayerId,
+    string DisplayName,
+    string? PublicSlug,
+    bool IsPublic,
+    string? Bio);
+
+public sealed record PublicMasterClub(
+    Guid GroupId,
+    string Name,
+    string Slug);
+
+public sealed record PublicMasterProfile(
+    string Slug,
+    string DisplayName,
+    string? Bio,
+    IReadOnlyList<PublicMasterClub> Clubs,
+    IReadOnlyList<WebPublicSession> Sessions);
+
 public interface ISessionStore
 {
     Task<List<WebGameGroup>> GetGroupsForUserAsync(string platform, string externalUserId);
     Task<WebGameGroup?> GetGroupAsync(Guid groupId);
+    Task<WebPublicGroupSettings?> GetPublicGroupSettingsAsync(Guid groupId);
+    Task UpdatePublicGroupSettingsAsync(Guid groupId, string? publicSlug, bool publicScheduleEnabled);
+    Task SetSessionPublicAsync(Guid sessionId, Guid groupId, bool isPublic);
+    Task SetBatchPublicAsync(Guid batchId, Guid groupId, bool isPublic);
+    Task<WebPublicClub?> GetPublicClubBySlugAsync(string slug);
+    Task<WebPublicSession?> GetPublicSessionAsync(Guid sessionId);
     Task<bool> IsGroupManagerAsync(Guid groupId, string platform, string externalUserId);
     Task<bool> IsGroupOwnerAsync(Guid groupId, string platform, string externalUserId);
     Task<List<WebGroupManager>> GetGroupManagersAsync(Guid groupId);
@@ -53,6 +108,9 @@ public interface ISessionStore
     Task LogSessionChangeAsync(Guid sessionId, string actorExternalUserId, string actorName, string changeType, string? oldValue, string? newValue);
     Task<List<SessionAuditLogEntry>> GetSessionHistoryAsync(Guid sessionId);
     Task UpsertDiscordUserAsync(string discordId, string displayName, string? avatarUrl);
+    Task<MasterProfileSettings?> GetMasterProfileSettingsAsync(string platform, string externalUserId);
+    Task UpdateMasterProfileSettingsAsync(string platform, string externalUserId, string? publicSlug, bool isPublic, string displayName, string? bio);
+    Task<PublicMasterProfile?> GetPublicMasterProfileBySlugAsync(string slug);
 
     // --- Identity linking (issue #35) ---
     Task<Guid?> ResolveEffectivePlayerIdAsync(string platform, string externalUserId);
@@ -60,6 +118,11 @@ public interface ISessionStore
     Task LinkIdentityAsync(string currentPlatform, string currentExternalUserId, string targetPlatform, string targetExternalUserId, string? currentName);
     Task UnlinkIdentityAsync(string currentPlatform, string currentExternalUserId, string targetPlatform, string targetExternalUserId);
     Task UpsertPlayerAsync(string platform, string externalUserId, string displayName, string? avatarUrl);
+
+    // --- Showcase / game catalog (issue #39) ---
+    Task<IReadOnlyList<ShowcaseSessionDto>> GetShowcaseSessionsAsync(ShowcaseFilter filter, int page, int pageSize);
+    Task<ShowcaseSessionDto?> GetShowcaseSessionAsync(Guid sessionId);
+    Task<bool> RegisterFromShowcaseAsync(Guid sessionId, string platform, string externalUserId, string displayName);
 }
 
 public sealed record LinkedIdentity(

src/GmRelay.Web/Services/SessionService.cs

@@ -1,5 +1,6 @@
 using Dapper;
 using GmRelay.Shared.Domain;
+using GmRelay.Shared.Features.Showcase;
 using GmRelay.Shared.Rendering;
 using Npgsql;
 using Telegram.Bot;
@@ -28,6 +29,7 @@ public sealed record WebGameGroup(
 public sealed record WebGroupManager(
     long TelegramId,
     string? ExternalUserId,
+    string? Platform,
     string DisplayName,
     string? TelegramUsername,
     string? ExternalUsername,
@@ -35,7 +37,17 @@ public sealed record WebGroupManager(
     DateTime AddedAt)
 {
     public WebGroupManager(long telegramId, string displayName, string? telegramUsername, string role, DateTime addedAt)
-        : this(telegramId, null, displayName, telegramUsername, null, role, addedAt) { }
+        : this(telegramId, null, null, displayName, telegramUsername, null, role, addedAt) { }
+
+    public WebGroupManager(
+        long telegramId,
+        string? externalUserId,
+        string displayName,
+        string? telegramUsername,
+        string? externalUsername,
+        string role,
+        DateTime addedAt)
+        : this(telegramId, externalUserId, null, displayName, telegramUsername, externalUsername, role, addedAt) { }
 }
 
 public sealed record WebGroupManagement(
@@ -56,7 +68,8 @@ public sealed record WebSession(
     int ActivePlayerCount,
     int WaitlistedPlayerCount,
     string NotificationMode = SessionNotificationModeExtensions.GroupAndDirectValue,
-    int? ThreadId = null);
+    int? ThreadId = null,
+    bool IsPublic = false);
 
 public sealed record WebParticipant(
     Guid Id,
@@ -97,6 +110,33 @@ internal sealed record WebBatchSessionRow(
     bool TopicCreatedByBot = false);
 internal sealed record WebTemplateGroupDto(long TelegramChatId);
 internal sealed record WebTemplateTopicDestination(int? MessageThreadId, bool TopicCreatedByBot);
+internal sealed record WebPublicGroupRow(
+    Guid GroupId,
+    string Name,
+    string Slug,
+    string? MasterProfileSlug,
+    string? MasterDisplayName);
+internal sealed record ShowcaseSessionRow(
+    Guid Id,
+    Guid GroupId,
+    string GroupName,
+    string? GroupSlug,
+    string Title,
+    DateTime ScheduledAt,
+    string Status,
+    string? System,
+    bool IsOneShot,
+    string? Format,
+    int? DurationMinutes,
+    string? CoverImageUrl,
+    int? MaxPlayers,
+    int ActivePlayerCount,
+    int WaitlistedPlayerCount,
+    bool AllowDirectRegistration,
+    string? Description,
+    string? MasterProfileSlug,
+    string? MasterDisplayName);
+internal sealed record PublicMasterProfileRow(Guid PlayerId, string Slug, string DisplayName, string? Bio);
 
 public sealed class SessionService(
     NpgsqlDataSource dataSource,
@@ -171,6 +211,465 @@ public sealed class SessionService(
             new { GroupId = groupId, OwnerRole = GroupManagerRoleExtensions.OwnerValue });
     }
 
+    public async Task<WebPublicGroupSettings?> GetPublicGroupSettingsAsync(Guid groupId)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        return await conn.QuerySingleOrDefaultAsync<WebPublicGroupSettings>(
+            """
+            SELECT g.id AS GroupId,
+                   COALESCE(NULLIF(g.name, g.external_group_id), latest_session.title, g.name) AS GroupName,
+                   g.public_slug AS PublicSlug,
+                   g.public_schedule_enabled AS PublicScheduleEnabled,
+                   COALESCE(public_counts.count, 0)::int AS PublicSessionCount
+            FROM game_groups g
+            LEFT JOIN LATERAL (
+                SELECT s.title
+                FROM sessions s
+                WHERE s.group_id = g.id
+                ORDER BY s.scheduled_at DESC
+                LIMIT 1
+            ) latest_session ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM sessions s
+                WHERE s.group_id = g.id
+                  AND s.is_public = true
+            ) public_counts ON true
+            WHERE g.id = @GroupId
+            """,
+            new { GroupId = groupId });
+    }
+
+    public async Task UpdatePublicGroupSettingsAsync(Guid groupId, string? publicSlug, bool publicScheduleEnabled)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        try
+        {
+            await conn.ExecuteAsync(
+                """
+                UPDATE game_groups
+                SET public_slug = @PublicSlug,
+                    public_schedule_enabled = @PublicScheduleEnabled,
+                    public_schedule_updated_at = now()
+                WHERE id = @GroupId
+                """,
+                new
+                {
+                    GroupId = groupId,
+                    PublicSlug = string.IsNullOrWhiteSpace(publicSlug) ? null : publicSlug,
+                    PublicScheduleEnabled = publicScheduleEnabled
+                });
+        }
+        catch (PostgresException ex) when (ex.SqlState == PostgresErrorCodes.UniqueViolation)
+        {
+            throw new InvalidOperationException("Public slug is already in use.", ex);
+        }
+    }
+
+    public async Task SetSessionPublicAsync(Guid sessionId, Guid groupId, bool isPublic)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        var updatedRows = await conn.ExecuteAsync(
+            """
+            UPDATE sessions
+            SET is_public = @IsPublic,
+                updated_at = now()
+            WHERE id = @SessionId
+              AND group_id = @GroupId
+            """,
+            new { SessionId = sessionId, GroupId = groupId, IsPublic = isPublic });
+
+        if (updatedRows == 0)
+        {
+            throw new SessionAccessDeniedException(sessionId, "0");
+        }
+    }
+
+    public async Task SetBatchPublicAsync(Guid batchId, Guid groupId, bool isPublic)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        var updatedRows = await conn.ExecuteAsync(
+            """
+            UPDATE sessions
+            SET is_public = @IsPublic,
+                updated_at = now()
+            WHERE batch_id = @BatchId
+              AND group_id = @GroupId
+            """,
+            new { BatchId = batchId, GroupId = groupId, IsPublic = isPublic });
+
+        if (updatedRows == 0)
+        {
+            throw new SessionAccessDeniedException(batchId, "0");
+        }
+    }
+
+    public async Task<WebPublicClub?> GetPublicClubBySlugAsync(string slug)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        var group = await conn.QuerySingleOrDefaultAsync<WebPublicGroupRow>(
+            """
+            SELECT g.id AS GroupId,
+                   COALESCE(NULLIF(g.name, g.external_group_id), latest_session.title, g.name) AS Name,
+                   g.public_slug AS Slug,
+                   mp.public_slug AS MasterProfileSlug,
+                   mp.display_name AS MasterDisplayName
+            FROM game_groups g
+            LEFT JOIN LATERAL (
+                SELECT s.title
+                FROM sessions s
+                WHERE s.group_id = g.id
+                ORDER BY s.scheduled_at DESC
+                LIMIT 1
+            ) latest_session ON true
+            LEFT JOIN LATERAL (
+                SELECT gm.player_id
+                FROM group_managers gm
+                WHERE gm.group_id = g.id
+                  AND gm.role = @OwnerRole
+                ORDER BY gm.added_at
+                LIMIT 1
+            ) owner_manager ON true
+            LEFT JOIN player_links owner_link ON owner_link.secondary_player_id = owner_manager.player_id
+            LEFT JOIN master_profiles mp ON mp.player_id = COALESCE(owner_link.primary_player_id, owner_manager.player_id)
+                AND mp.is_public = true
+                AND mp.public_slug IS NOT NULL
+            WHERE g.public_schedule_enabled = true
+              AND g.public_slug IS NOT NULL
+              AND lower(g.public_slug) = lower(@Slug)
+            """,
+            new { Slug = slug, OwnerRole = GroupManagerRoleExtensions.OwnerValue });
+
+        if (group is null)
+        {
+            return null;
+        }
+
+        var sessions = await GetPublicSessionsForGroupAsync(conn, group.GroupId);
+        return new WebPublicClub(group.GroupId, group.Name, group.Slug, sessions, group.MasterProfileSlug, group.MasterDisplayName);
+    }
+
+    public async Task<WebPublicSession?> GetPublicSessionAsync(Guid sessionId)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        return await conn.QuerySingleOrDefaultAsync<WebPublicSession>(
+            """
+            SELECT s.id AS Id,
+                   s.group_id AS GroupId,
+                   COALESCE(NULLIF(g.name, g.external_group_id), latest_session.title, g.name) AS GroupName,
+                   g.public_slug AS GroupSlug,
+                   s.title AS Title,
+                   s.scheduled_at AS ScheduledAt,
+                   s.status AS Status,
+                   s.max_players AS MaxPlayers,
+                   COALESCE(active_counts.count, 0)::int AS ActivePlayerCount,
+                   COALESCE(waitlist_counts.count, 0)::int AS WaitlistedPlayerCount,
+                   mp.public_slug AS MasterProfileSlug,
+                   mp.display_name AS MasterDisplayName
+            FROM sessions s
+            JOIN game_groups g ON g.id = s.group_id
+            LEFT JOIN LATERAL (
+                SELECT recent.title
+                FROM sessions recent
+                WHERE recent.group_id = g.id
+                ORDER BY recent.scheduled_at DESC
+                LIMIT 1
+            ) latest_session ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM session_participants sp
+                WHERE sp.session_id = s.id
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Active
+            ) active_counts ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM session_participants sp
+                WHERE sp.session_id = s.id
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Waitlisted
+            ) waitlist_counts ON true
+            LEFT JOIN LATERAL (
+                SELECT gm.player_id
+                FROM group_managers gm
+                WHERE gm.group_id = g.id
+                  AND gm.role = @OwnerRole
+                ORDER BY gm.added_at
+                LIMIT 1
+            ) owner_manager ON true
+            LEFT JOIN player_links owner_link ON owner_link.secondary_player_id = owner_manager.player_id
+            LEFT JOIN master_profiles mp ON mp.player_id = COALESCE(owner_link.primary_player_id, owner_manager.player_id)
+                AND mp.is_public = true
+                AND mp.public_slug IS NOT NULL
+            WHERE s.id = @SessionId
+              AND g.public_schedule_enabled = true
+              AND g.public_slug IS NOT NULL
+              AND s.is_public = true
+              AND s.scheduled_at > now() - interval '4 hours'
+              AND s.status <> @Cancelled
+            """,
+            new
+            {
+                SessionId = sessionId,
+                Active = ParticipantRegistrationStatus.Active,
+                Waitlisted = ParticipantRegistrationStatus.Waitlisted,
+                Cancelled = SessionStatus.Cancelled,
+                OwnerRole = GroupManagerRoleExtensions.OwnerValue
+            });
+    }
+
+    public async Task<IReadOnlyList<ShowcaseSessionDto>> GetShowcaseSessionsAsync(ShowcaseFilter filter, int page, int pageSize)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        var rows = await conn.QueryAsync<ShowcaseSessionRow>(
+            """
+            SELECT s.id AS Id,
+                   s.group_id AS GroupId,
+                   COALESCE(NULLIF(g.name, g.external_group_id), latest_session.title, g.name) AS GroupName,
+                   g.public_slug AS GroupSlug,
+                   s.title AS Title,
+                   s.scheduled_at AS ScheduledAt,
+                   s.status AS Status,
+                   s.system AS System,
+                   s.is_one_shot AS IsOneShot,
+                   s.format AS Format,
+                   s.duration_minutes AS DurationMinutes,
+                   s.cover_image_url AS CoverImageUrl,
+                   s.max_players AS MaxPlayers,
+                   COALESCE(active_counts.count, 0)::int AS ActivePlayerCount,
+                   COALESCE(waitlist_counts.count, 0)::int AS WaitlistedPlayerCount,
+                   s.allow_direct_registration AS AllowDirectRegistration,
+                   s.description AS Description,
+                   mp.public_slug AS MasterProfileSlug,
+                   mp.display_name AS MasterDisplayName
+            FROM sessions s
+            JOIN game_groups g ON g.id = s.group_id
+            LEFT JOIN LATERAL (
+                SELECT recent.title
+                FROM sessions recent
+                WHERE recent.group_id = g.id
+                ORDER BY recent.scheduled_at DESC
+                LIMIT 1
+            ) latest_session ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM session_participants sp
+                WHERE sp.session_id = s.id
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Active
+            ) active_counts ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM session_participants sp
+                WHERE sp.session_id = s.id
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Waitlisted
+            ) waitlist_counts ON true
+            LEFT JOIN LATERAL (
+                SELECT gm.player_id
+                FROM group_managers gm
+                WHERE gm.group_id = g.id
+                  AND gm.role = @OwnerRole
+                ORDER BY gm.added_at
+                LIMIT 1
+            ) owner_manager ON true
+            LEFT JOIN player_links owner_link ON owner_link.secondary_player_id = owner_manager.player_id
+            LEFT JOIN master_profiles mp ON mp.player_id = COALESCE(owner_link.primary_player_id, owner_manager.player_id)
+                AND mp.is_public = true
+                AND mp.public_slug IS NOT NULL
+            WHERE g.public_schedule_enabled = true
+              AND g.public_slug IS NOT NULL
+              AND s.is_public = true
+              AND s.scheduled_at > now() - interval '4 hours'
+              AND s.status <> @Cancelled
+              AND (
+                  @DateFilter = 'All'
+                  OR (@DateFilter = 'Today' AND s.scheduled_at >= CURRENT_DATE AND s.scheduled_at < CURRENT_DATE + interval '1 day')
+                  OR (@DateFilter = 'Tomorrow' AND s.scheduled_at >= CURRENT_DATE + interval '1 day' AND s.scheduled_at < CURRENT_DATE + interval '2 days')
+                  OR (@DateFilter = 'ThisWeek' AND s.scheduled_at >= CURRENT_DATE AND s.scheduled_at < CURRENT_DATE + interval '7 days')
+              )
+              AND (
+                  @SeatFilter = 'Any'
+                  OR (@SeatFilter = 'Available' AND (s.max_players IS NULL OR active_counts.count < s.max_players))
+                  OR (@SeatFilter = 'Waitlist' AND (s.max_players IS NOT NULL AND active_counts.count >= s.max_players))
+              )
+              AND (@System IS NULL OR s.system = @System)
+              AND (@IsOneShot IS NULL OR s.is_one_shot = @IsOneShot)
+              AND (@Format IS NULL OR s.format = @Format)
+            ORDER BY s.scheduled_at ASC
+            LIMIT @PageSize OFFSET @Offset
+            """,
+            new
+            {
+                Active = ParticipantRegistrationStatus.Active,
+                Waitlisted = ParticipantRegistrationStatus.Waitlisted,
+                Cancelled = SessionStatus.Cancelled,
+                DateFilter = filter.Date.ToString(),
+                SeatFilter = filter.Seats.ToString(),
+                filter.System,
+                filter.IsOneShot,
+                filter.Format,
+                PageSize = pageSize,
+                Offset = (page - 1) * pageSize,
+                OwnerRole = GroupManagerRoleExtensions.OwnerValue
+            });
+
+        return rows.Select(r => new ShowcaseSessionDto(
+            r.Id, r.GroupId, r.GroupName, r.GroupSlug, r.Title, r.ScheduledAt, r.Status,
+            r.System, r.IsOneShot, r.Format, r.DurationMinutes, r.CoverImageUrl,
+            r.MaxPlayers, r.ActivePlayerCount, r.WaitlistedPlayerCount, r.AllowDirectRegistration,
+            r.Description, r.MasterProfileSlug, r.MasterDisplayName)).ToList();
+    }
+
+    public async Task<ShowcaseSessionDto?> GetShowcaseSessionAsync(Guid sessionId)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        var row = await conn.QuerySingleOrDefaultAsync<ShowcaseSessionRow>(
+            """
+            SELECT s.id AS Id,
+                   s.group_id AS GroupId,
+                   COALESCE(NULLIF(g.name, g.external_group_id), latest_session.title, g.name) AS GroupName,
+                   g.public_slug AS GroupSlug,
+                   s.title AS Title,
+                   s.scheduled_at AS ScheduledAt,
+                   s.status AS Status,
+                   s.system AS System,
+                   s.is_one_shot AS IsOneShot,
+                   s.format AS Format,
+                   s.duration_minutes AS DurationMinutes,
+                   s.cover_image_url AS CoverImageUrl,
+                   s.max_players AS MaxPlayers,
+                   COALESCE(active_counts.count, 0)::int AS ActivePlayerCount,
+                   COALESCE(waitlist_counts.count, 0)::int AS WaitlistedPlayerCount,
+                   s.allow_direct_registration AS AllowDirectRegistration,
+                   s.description AS Description,
+                   mp.public_slug AS MasterProfileSlug,
+                   mp.display_name AS MasterDisplayName
+            FROM sessions s
+            JOIN game_groups g ON g.id = s.group_id
+            LEFT JOIN LATERAL (
+                SELECT recent.title
+                FROM sessions recent
+                WHERE recent.group_id = g.id
+                ORDER BY recent.scheduled_at DESC
+                LIMIT 1
+            ) latest_session ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM session_participants sp
+                WHERE sp.session_id = s.id
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Active
+            ) active_counts ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM session_participants sp
+                WHERE sp.session_id = s.id
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Waitlisted
+            ) waitlist_counts ON true
+            LEFT JOIN LATERAL (
+                SELECT gm.player_id
+                FROM group_managers gm
+                WHERE gm.group_id = g.id
+                  AND gm.role = @OwnerRole
+                ORDER BY gm.added_at
+                LIMIT 1
+            ) owner_manager ON true
+            LEFT JOIN player_links owner_link ON owner_link.secondary_player_id = owner_manager.player_id
+            LEFT JOIN master_profiles mp ON mp.player_id = COALESCE(owner_link.primary_player_id, owner_manager.player_id)
+                AND mp.is_public = true
+                AND mp.public_slug IS NOT NULL
+            WHERE s.id = @SessionId
+              AND g.public_schedule_enabled = true
+              AND g.public_slug IS NOT NULL
+              AND s.is_public = true
+              AND s.scheduled_at > now() - interval '4 hours'
+              AND s.status <> @Cancelled
+            """,
+            new
+            {
+                SessionId = sessionId,
+                Active = ParticipantRegistrationStatus.Active,
+                Waitlisted = ParticipantRegistrationStatus.Waitlisted,
+                Cancelled = SessionStatus.Cancelled,
+                OwnerRole = GroupManagerRoleExtensions.OwnerValue
+            });
+
+        if (row is null)
+            return null;
+
+        return new ShowcaseSessionDto(
+            row.Id, row.GroupId, row.GroupName, row.GroupSlug, row.Title, row.ScheduledAt, row.Status,
+            row.System, row.IsOneShot, row.Format, row.DurationMinutes, row.CoverImageUrl,
+            row.MaxPlayers, row.ActivePlayerCount, row.WaitlistedPlayerCount, row.AllowDirectRegistration,
+            row.Description, row.MasterProfileSlug, row.MasterDisplayName);
+    }
+
+    public async Task<bool> RegisterFromShowcaseAsync(Guid sessionId, string platform, string externalUserId, string displayName)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        await using var transaction = await conn.BeginTransactionAsync();
+
+        var session = await conn.QuerySingleOrDefaultAsync<dynamic>(
+            """
+            SELECT s.id, s.max_players AS MaxPlayers, s.allow_direct_registration AS AllowDirectRegistration
+            FROM sessions s
+            JOIN game_groups g ON g.id = s.group_id
+            WHERE s.id = @SessionId
+              AND s.is_public = true
+              AND g.public_schedule_enabled = true
+              AND g.public_slug IS NOT NULL
+              AND s.scheduled_at > now() - interval '4 hours'
+              AND s.status <> @Cancelled
+            FOR UPDATE OF s
+            """,
+            new { SessionId = sessionId, Cancelled = SessionStatus.Cancelled },
+            transaction);
+
+        if (session is null || !(bool)session.allowdirectregistration)
+        {
+            await transaction.RollbackAsync();
+            return false;
+        }
+
+        var playerId = await _UpsertPlayerAndGetIdAsync(conn, platform, externalUserId, displayName, null, transaction);
+
+        var registrationStatus = SessionCapacityRules.DecideJoinStatus(
+            (int?)session.maxplayers,
+            await conn.ExecuteScalarAsync<int>(
+                """
+                SELECT COUNT(*) FROM session_participants
+                WHERE session_id = @SessionId AND is_gm = false AND registration_status = @Active
+                """,
+                new { SessionId = sessionId, Active = ParticipantRegistrationStatus.Active },
+                transaction));
+
+        var inserted = await conn.ExecuteAsync(
+            """
+            INSERT INTO session_participants (session_id, player_id, is_gm, rsvp_status, registration_status)
+            VALUES (@SessionId, @PlayerId, false, @Pending, @RegistrationStatus)
+            ON CONFLICT (session_id, player_id) DO NOTHING
+            """,
+            new
+            {
+                SessionId = sessionId,
+                PlayerId = playerId,
+                Pending = RsvpStatus.Pending,
+                RegistrationStatus = registrationStatus
+            },
+            transaction);
+
+        if (inserted == 0)
+        {
+            await transaction.RollbackAsync();
+            return false;
+        }
+
+        await transaction.CommitAsync();
+        return true;
+    }
+
     public async Task<bool> IsGroupManagerAsync(Guid groupId, string platform, string externalUserId)
     {
         await using var conn = await dataSource.OpenConnectionAsync();
@@ -215,8 +714,13 @@ public sealed class SessionService(
         await using var conn = await dataSource.OpenConnectionAsync();
         return (await conn.QueryAsync<WebGroupManager>(
             """
-            SELECT COALESCE(p.external_user_id::BIGINT, 0) AS TelegramId,
+            SELECT CASE
+                       WHEN p.platform = 'Telegram' AND p.external_user_id ~ '^[0-9]+$'
+                           THEN p.external_user_id::BIGINT
+                       ELSE 0
+                   END AS TelegramId,
                    p.external_user_id AS ExternalUserId,
+                   p.platform AS Platform,
                    p.display_name AS DisplayName,
                    p.external_username AS TelegramUsername,
                    p.external_username AS ExternalUsername,
@@ -363,7 +867,8 @@ public sealed class SessionService(
                      COALESCE(active_counts.count, 0)::int AS ActivePlayerCount,
                      COALESCE(waitlist_counts.count, 0)::int AS WaitlistedPlayerCount,
                      s.notification_mode AS NotificationMode,
-                     s.thread_id AS ThreadId
+                     s.thread_id AS ThreadId,
+                     s.is_public AS IsPublic
               FROM sessions s
               JOIN game_groups g ON g.id = s.group_id
               LEFT JOIN LATERAL (
@@ -401,7 +906,8 @@ public sealed class SessionService(
                      COALESCE(active_counts.count, 0)::int AS ActivePlayerCount,
                      COALESCE(waitlist_counts.count, 0)::int AS WaitlistedPlayerCount,
                      s.notification_mode AS NotificationMode,
-                     s.thread_id AS ThreadId
+                     s.thread_id AS ThreadId,
+                     s.is_public AS IsPublic
               FROM sessions s
               JOIN game_groups g ON g.id = s.group_id
               LEFT JOIN LATERAL (
@@ -460,7 +966,8 @@ public sealed class SessionService(
                      0 AS ActivePlayerCount,
                      0 AS WaitlistedPlayerCount,
                      s.notification_mode AS NotificationMode,
-                     s.thread_id AS ThreadId
+                     s.thread_id AS ThreadId,
+                     s.is_public AS IsPublic
               FROM sessions s
               JOIN game_groups g ON g.id = s.group_id
               WHERE s.id = @Id AND s.group_id = @GroupId",
@@ -546,7 +1053,8 @@ public sealed class SessionService(
                      0 AS ActivePlayerCount,
                      0 AS WaitlistedPlayerCount,
                      s.notification_mode AS NotificationMode,
-                     s.thread_id AS ThreadId
+                     s.thread_id AS ThreadId,
+                     s.is_public AS IsPublic
               FROM sessions s
               JOIN game_groups g ON g.id = s.group_id
               WHERE s.id = @SessionId AND s.group_id = @GroupId
@@ -672,7 +1180,8 @@ public sealed class SessionService(
                      0 AS ActivePlayerCount,
                      0 AS WaitlistedPlayerCount,
                      s.notification_mode AS NotificationMode,
-                     s.thread_id AS ThreadId
+                     s.thread_id AS ThreadId,
+                     s.is_public AS IsPublic
               FROM sessions s
               JOIN game_groups g ON g.id = s.group_id
               WHERE s.id = @SessionId AND s.group_id = @GroupId
@@ -1380,6 +1889,253 @@ public sealed class SessionService(
         }
     }
 
+    public async Task<MasterProfileSettings?> GetMasterProfileSettingsAsync(string platform, string externalUserId)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        var effectiveId = await _ResolveEffectivePlayerIdAsync(conn, platform, externalUserId);
+        if (effectiveId is null)
+            return null;
+
+        return await conn.QuerySingleOrDefaultAsync<MasterProfileSettings>(
+            """
+            SELECT p.id AS PlayerId,
+                   COALESCE(mp.display_name, p.display_name) AS DisplayName,
+                   mp.public_slug AS PublicSlug,
+                   COALESCE(mp.is_public, false) AS IsPublic,
+                   mp.bio AS Bio
+            FROM players p
+            LEFT JOIN master_profiles mp ON mp.player_id = p.id
+            WHERE p.id = @PlayerId
+            """,
+            new { PlayerId = effectiveId.Value });
+    }
+
+    public async Task UpdateMasterProfileSettingsAsync(
+        string platform,
+        string externalUserId,
+        string? publicSlug,
+        bool isPublic,
+        string displayName,
+        string? bio)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        var effectiveId = await _ResolveEffectivePlayerIdAsync(conn, platform, externalUserId);
+        if (effectiveId is null)
+            throw new InvalidOperationException("Current player not found.");
+
+        try
+        {
+            await conn.ExecuteAsync(
+                """
+                INSERT INTO master_profiles (player_id, public_slug, is_public, display_name, bio)
+                VALUES (@PlayerId, @PublicSlug, @IsPublic, @DisplayName, @Bio)
+                ON CONFLICT (player_id) DO UPDATE
+                SET public_slug = EXCLUDED.public_slug,
+                    is_public = EXCLUDED.is_public,
+                    display_name = EXCLUDED.display_name,
+                    bio = EXCLUDED.bio,
+                    updated_at = now()
+                """,
+                new
+                {
+                    PlayerId = effectiveId.Value,
+                    PublicSlug = string.IsNullOrWhiteSpace(publicSlug) ? null : publicSlug,
+                    IsPublic = isPublic,
+                    DisplayName = displayName,
+                    Bio = string.IsNullOrWhiteSpace(bio) ? null : bio.Trim()
+                });
+        }
+        catch (PostgresException ex) when (ex.SqlState == PostgresErrorCodes.UniqueViolation)
+        {
+            throw new InvalidOperationException("Master profile slug is already in use.", ex);
+        }
+    }
+
+    public async Task<PublicMasterProfile?> GetPublicMasterProfileBySlugAsync(string slug)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        var profile = await conn.QuerySingleOrDefaultAsync<PublicMasterProfileRow>(
+            """
+            SELECT mp.player_id AS PlayerId,
+                   mp.public_slug AS Slug,
+                   mp.display_name AS DisplayName,
+                   mp.bio AS Bio
+            FROM master_profiles mp
+            WHERE mp.is_public = true
+              AND mp.public_slug IS NOT NULL
+              AND lower(mp.public_slug) = lower(@Slug)
+            """,
+            new { Slug = slug });
+
+        if (profile is null)
+            return null;
+
+        var clubs = await GetPublicClubsForMasterAsync(conn, profile.PlayerId);
+        var sessions = await GetPublicSessionsForMasterAsync(conn, profile.PlayerId);
+        return new PublicMasterProfile(profile.Slug, profile.DisplayName, profile.Bio, clubs, sessions);
+    }
+
+    private static async Task<List<PublicMasterClub>> GetPublicClubsForMasterAsync(
+        NpgsqlConnection conn,
+        Guid playerId)
+    {
+        return (await conn.QueryAsync<PublicMasterClub>(
+            """
+            SELECT DISTINCT g.id AS GroupId,
+                   COALESCE(NULLIF(g.name, g.external_group_id), latest_session.title, g.name) AS Name,
+                   g.public_slug AS Slug
+            FROM game_groups g
+            JOIN group_managers gm ON gm.group_id = g.id
+            LEFT JOIN player_links manager_link ON manager_link.secondary_player_id = gm.player_id
+            LEFT JOIN LATERAL (
+                SELECT s.title
+                FROM sessions s
+                WHERE s.group_id = g.id
+                ORDER BY s.scheduled_at DESC
+                LIMIT 1
+            ) latest_session ON true
+            WHERE COALESCE(manager_link.primary_player_id, gm.player_id) = @PlayerId
+              AND g.public_schedule_enabled = true
+              AND g.public_slug IS NOT NULL
+            ORDER BY Name
+            """,
+            new { PlayerId = playerId })).ToList();
+    }
+
+    private static async Task<List<WebPublicSession>> GetPublicSessionsForMasterAsync(
+        NpgsqlConnection conn,
+        Guid playerId)
+    {
+        return (await conn.QueryAsync<WebPublicSession>(
+            """
+            SELECT DISTINCT s.id AS Id,
+                   s.group_id AS GroupId,
+                   COALESCE(NULLIF(g.name, g.external_group_id), latest_session.title, g.name) AS GroupName,
+                   g.public_slug AS GroupSlug,
+                   s.title AS Title,
+                   s.scheduled_at AS ScheduledAt,
+                   s.status AS Status,
+                   s.max_players AS MaxPlayers,
+                   COALESCE(active_counts.count, 0)::int AS ActivePlayerCount,
+                   COALESCE(waitlist_counts.count, 0)::int AS WaitlistedPlayerCount,
+                   mp.public_slug AS MasterProfileSlug,
+                   mp.display_name AS MasterDisplayName
+            FROM sessions s
+            JOIN game_groups g ON g.id = s.group_id
+            JOIN group_managers gm ON gm.group_id = g.id
+            LEFT JOIN player_links manager_link ON manager_link.secondary_player_id = gm.player_id
+            JOIN master_profiles mp ON mp.player_id = COALESCE(manager_link.primary_player_id, gm.player_id)
+                AND mp.player_id = @PlayerId
+                AND mp.is_public = true
+                AND mp.public_slug IS NOT NULL
+            LEFT JOIN LATERAL (
+                SELECT recent.title
+                FROM sessions recent
+                WHERE recent.group_id = g.id
+                ORDER BY recent.scheduled_at DESC
+                LIMIT 1
+            ) latest_session ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM session_participants sp
+                WHERE sp.session_id = s.id
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Active
+            ) active_counts ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM session_participants sp
+                WHERE sp.session_id = s.id
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Waitlisted
+            ) waitlist_counts ON true
+            WHERE g.public_schedule_enabled = true
+              AND g.public_slug IS NOT NULL
+              AND s.is_public = true
+              AND s.scheduled_at > now() - interval '4 hours'
+              AND s.status <> @Cancelled
+            ORDER BY s.scheduled_at
+            """,
+            new
+            {
+                PlayerId = playerId,
+                Active = ParticipantRegistrationStatus.Active,
+                Waitlisted = ParticipantRegistrationStatus.Waitlisted,
+                Cancelled = SessionStatus.Cancelled
+            })).ToList();
+    }
+
+    private static async Task<List<WebPublicSession>> GetPublicSessionsForGroupAsync(
+        NpgsqlConnection conn,
+        Guid groupId)
+    {
+        return (await conn.QueryAsync<WebPublicSession>(
+            """
+            SELECT s.id AS Id,
+                   s.group_id AS GroupId,
+                   COALESCE(NULLIF(g.name, g.external_group_id), latest_session.title, g.name) AS GroupName,
+                   g.public_slug AS GroupSlug,
+                   s.title AS Title,
+                   s.scheduled_at AS ScheduledAt,
+                   s.status AS Status,
+                   s.max_players AS MaxPlayers,
+                   COALESCE(active_counts.count, 0)::int AS ActivePlayerCount,
+                   COALESCE(waitlist_counts.count, 0)::int AS WaitlistedPlayerCount,
+                   mp.public_slug AS MasterProfileSlug,
+                   mp.display_name AS MasterDisplayName
+            FROM sessions s
+            JOIN game_groups g ON g.id = s.group_id
+            LEFT JOIN LATERAL (
+                SELECT recent.title
+                FROM sessions recent
+                WHERE recent.group_id = g.id
+                ORDER BY recent.scheduled_at DESC
+                LIMIT 1
+            ) latest_session ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM session_participants sp
+                WHERE sp.session_id = s.id
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Active
+            ) active_counts ON true
+            LEFT JOIN LATERAL (
+                SELECT COUNT(*) AS count
+                FROM session_participants sp
+                WHERE sp.session_id = s.id
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Waitlisted
+            ) waitlist_counts ON true
+            LEFT JOIN LATERAL (
+                SELECT gm.player_id
+                FROM group_managers gm
+                WHERE gm.group_id = g.id
+                  AND gm.role = @OwnerRole
+                ORDER BY gm.added_at
+                LIMIT 1
+            ) owner_manager ON true
+            LEFT JOIN player_links owner_link ON owner_link.secondary_player_id = owner_manager.player_id
+            LEFT JOIN master_profiles mp ON mp.player_id = COALESCE(owner_link.primary_player_id, owner_manager.player_id)
+                AND mp.is_public = true
+                AND mp.public_slug IS NOT NULL
+            WHERE s.group_id = @GroupId
+              AND g.public_schedule_enabled = true
+              AND g.public_slug IS NOT NULL
+              AND s.is_public = true
+              AND s.scheduled_at > now() - interval '4 hours'
+              AND s.status <> @Cancelled
+            ORDER BY s.scheduled_at
+            """,
+            new
+            {
+                GroupId = groupId,
+                Active = ParticipantRegistrationStatus.Active,
+                Waitlisted = ParticipantRegistrationStatus.Waitlisted,
+                Cancelled = SessionStatus.Cancelled,
+                OwnerRole = GroupManagerRoleExtensions.OwnerValue
+            })).ToList();
+    }
+
     private static async Task<WebBatchInfo?> GetBatchInfoAsync(
         Npgsql.NpgsqlConnection conn,
         Guid batchId,

src/GmRelay.Web/wwwroot/app.css

@@ -785,6 +785,114 @@ select option {
     white-space: nowrap;
 }
 
+.batch-publish-row,
+.public-settings-actions,
+.public-link-row {
+    display: flex;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 0.75rem;
+}
+
+.batch-publish-row {
+    justify-content: space-between;
+    padding-top: 1rem;
+    border-top: 1px solid var(--border-color);
+}
+
+.public-settings-panel {
+    position: relative;
+    z-index: 2;
+}
+
+.public-toggle-field {
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+}
+
+.gm-checkbox-label {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.625rem;
+    color: var(--text-primary);
+    font-weight: 600;
+}
+
+.gm-checkbox-label input {
+    width: 1rem;
+    height: 1rem;
+    accent-color: var(--accent-primary);
+}
+
+.public-settings-actions {
+    margin-top: 0.25rem;
+}
+
+.public-link-row {
+    margin-top: 1rem;
+    padding-top: 1rem;
+    border-top: 1px solid var(--border-color);
+    color: var(--text-muted);
+    font-size: 0.875rem;
+}
+
+.public-link-row a {
+    overflow-wrap: anywhere;
+}
+
+.profile-card-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: flex-start;
+    gap: 1rem;
+    margin-bottom: 1rem;
+}
+
+.profile-form-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
+    gap: 1rem;
+}
+
+.master-profile-bio {
+    min-height: 7rem;
+    resize: vertical;
+}
+
+.master-profile-section {
+    margin-bottom: 1rem;
+}
+
+.master-profile-section h2 {
+    margin: 0 0 0.75rem;
+    font-family: 'Cinzel', serif;
+}
+
+.master-profile-club-list {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.5rem;
+}
+
+.master-profile-club-list a {
+    text-decoration: none;
+}
+
+.public-master-link {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.5rem;
+    color: var(--text-secondary);
+    font-family: 'Jura', sans-serif;
+}
+
+.public-master-link a {
+    color: var(--accent-primary);
+    font-weight: 600;
+    text-decoration: none;
+}
+
 /* === Campaign templates === */
 .campaign-template-panel {
     margin-bottom: 1.5rem;
@@ -1620,6 +1728,169 @@ body.telegram-mini-app .session-card-mobile {
     }
 }
 
+/* === Public pages === */
+.public-shell {
+    min-height: 100vh;
+    position: relative;
+    z-index: 2;
+}
+
+.public-topbar {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    gap: 1rem;
+    padding: 1rem 2rem;
+    border-bottom: 1px solid var(--border-color);
+    background: rgba(5, 8, 16, 0.82);
+    backdrop-filter: blur(16px);
+}
+
+.public-brand {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.75rem;
+    color: var(--text-primary);
+    font-weight: 700;
+}
+
+.public-brand img {
+    width: 2rem;
+    height: 2rem;
+}
+
+.public-content {
+    width: min(960px, calc(100% - 2rem));
+    margin: 0 auto;
+    padding: 2rem 0 3rem;
+}
+
+.public-hero {
+    margin-bottom: 1.5rem;
+    padding: 2rem 0 1rem;
+}
+
+.public-hero-compact {
+    max-width: 720px;
+}
+
+.public-hero h1 {
+    font-size: 2rem;
+    margin: 0.75rem 0 0.5rem;
+}
+
+.public-hero p {
+    max-width: 640px;
+    margin: 0;
+    color: var(--text-secondary);
+}
+
+.public-session-list {
+    display: grid;
+    gap: 0.875rem;
+}
+
+.public-session-card,
+.public-session-detail {
+    position: relative;
+    z-index: 2;
+}
+
+.public-session-card {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr) auto;
+    gap: 1rem;
+    align-items: center;
+    padding: 1rem;
+    background: var(--glass-bg);
+    border: 1px solid var(--glass-border);
+    border-radius: var(--radius-md);
+}
+
+.public-session-main h2 {
+    font-size: 1.125rem;
+    margin: 0.625rem 0 0.375rem;
+    overflow-wrap: anywhere;
+}
+
+.public-session-meta,
+.public-detail-grid {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.75rem 1.25rem;
+    color: var(--text-secondary);
+    font-size: 0.875rem;
+}
+
+.public-detail-grid {
+    display: grid;
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+    margin-bottom: 1.25rem;
+}
+
+.public-detail-grid div {
+    padding: 1rem;
+    border: 1px solid var(--border-color);
+    border-radius: var(--radius-sm);
+    background: var(--bg-surface);
+}
+
+.public-detail-grid span {
+    display: block;
+    margin-bottom: 0.375rem;
+    color: var(--text-muted);
+    font-size: 0.75rem;
+    text-transform: uppercase;
+}
+
+.public-detail-grid strong {
+    color: var(--text-primary);
+}
+
+.session-description {
+    margin: 1.25rem 0;
+    padding: 1rem;
+    background: var(--bg-surface);
+    border: 1px solid var(--border-color);
+    border-radius: var(--radius-sm);
+}
+
+.session-description h3 {
+    margin-bottom: 0.5rem;
+    font-size: 1rem;
+}
+
+.session-description p {
+    margin: 0;
+    color: var(--text-secondary);
+}
+
+.public-empty-state h2 {
+    font-size: 1.125rem;
+    margin-bottom: 0.5rem;
+}
+
+.public-empty-state p {
+    margin: 0;
+    color: var(--text-secondary);
+}
+
+@media (max-width: 768px) {
+    .public-topbar {
+        padding: 0.875rem 1rem;
+    }
+
+    .public-session-card,
+    .public-detail-grid {
+        grid-template-columns: 1fr;
+    }
+
+    .public-session-card .btn-gm {
+        justify-content: center;
+        width: 100%;
+    }
+}
+
 /* === Discord Login Button === */
 .login-btn-discord {
     display: flex;

tests/GmRelay.Bot.Tests/Discord/DiscordNewSessionHandlerTests.cs

@@ -115,6 +115,18 @@ public sealed class DiscordNewSessionHandlerTests
         Assert.Contains("UnauthorizedAccessException", source, StringComparison.Ordinal);
     }
 
+    [Fact]
+    public void Handler_ShouldLoadCoGmPermissionsFromDiscordPlayers()
+    {
+        var repoRoot = GetRepoRoot();
+        var handlerPath = Path.Combine(repoRoot, "src", "GmRelay.DiscordBot", "Features", "Sessions", "DiscordNewSessionHandler.cs");
+        var source = File.ReadAllText(handlerPath);
+
+        Assert.Matches(
+            @"QueryAsync<ulong>[\s\S]*JOIN players p ON p\.id = gm\.player_id[\s\S]*p\.platform = 'Discord'[\s\S]*g\.external_group_id = @GuildId",
+            source);
+    }
+
     [Fact]
     public void Handler_ShouldBePlatformNeutral()
     {

tests/GmRelay.Bot.Tests/Discord/DiscordProjectStructureTests.cs

@@ -1,5 +1,6 @@
 using System;
 using System.IO;
+using System.Xml.Linq;
 
 namespace GmRelay.Bot.Tests.Discord;
 
@@ -61,8 +62,9 @@ public sealed class DiscordProjectStructureTests
         var appHostProgram = File.ReadAllText(Path.Combine(repoRoot, "src", "GmRelay.AppHost", "Program.cs"));
         var prChecks = File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "pr-checks.yml"));
         var deploy = File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "deploy.yml"));
+        var version = GetProjectVersion(repoRoot);
 
-        Assert.Contains("gmrelay-discord-bot:3.1.1", compose);
+        Assert.Contains($"gmrelay-discord-bot:{version}", compose);
         Assert.Contains("Discord__Token=${DISCORD_BOT_TOKEN:?Set DISCORD_BOT_TOKEN in .env}", compose);
         Assert.Contains("src/GmRelay.DiscordBot/Dockerfile", deploy);
         Assert.Contains("DISCORD_BOT_TOKEN", deploy);
@@ -75,14 +77,15 @@ public sealed class DiscordProjectStructureTests
     public void Version_ShouldBeSynchronizedForDiscordFeatureRelease()
     {
         var repoRoot = GetRepoRoot();
+        var version = GetProjectVersion(repoRoot);
 
-        Assert.Contains("<Version>3.1.1</Version>", File.ReadAllText(Path.Combine(repoRoot, "Directory.Build.props")));
-        Assert.Contains("VERSION: 3.1.1", File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "deploy.yml")));
-        Assert.Contains("gmrelay-bot:3.1.1", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
-        Assert.Contains("gmrelay-web:3.1.1", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
-        Assert.Contains("gmrelay-discord-bot:3.1.1", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
+        Assert.Contains($"<Version>{version}</Version>", File.ReadAllText(Path.Combine(repoRoot, "Directory.Build.props")));
+        Assert.Contains($"VERSION: {version}", File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "deploy.yml")));
+        Assert.Contains($"gmrelay-bot:{version}", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
+        Assert.Contains($"gmrelay-web:{version}", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
+        Assert.Contains($"gmrelay-discord-bot:{version}", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
         Assert.Contains(
-            "v3.1.1",
+            $"v{version}",
             File.ReadAllText(Path.Combine(repoRoot, "src", "GmRelay.Web", "Components", "Layout", "NavMenu.razor")));
     }
 
@@ -121,4 +124,13 @@ public sealed class DiscordProjectStructureTests
         Assert.Contains("test:", discordBlock);
         Assert.Contains("localhost:8082/health", discordBlock);
     }
+
+    private static string GetProjectVersion(string repoRoot)
+    {
+        var props = XDocument.Load(Path.Combine(repoRoot, "Directory.Build.props"));
+        return props.Root?
+            .Element("PropertyGroup")?
+            .Element("Version")?
+            .Value ?? throw new InvalidOperationException("Version not found.");
+    }
 }

tests/GmRelay.Bot.Tests/Domain/GameSystemTests.cs

@@ -0,0 +1,65 @@
+using GmRelay.Shared.Domain;
+
+namespace GmRelay.Bot.Tests.Domain;
+
+public sealed class GameSystemTests
+{
+    [Theory]
+    [InlineData("Dnd5e", GameSystem.Dnd5e)]
+    [InlineData("D&D", GameSystem.Dnd5e)]
+    [InlineData("dnd5e", GameSystem.Dnd5e)]
+    [InlineData("  dnd5e  ", GameSystem.Dnd5e)]
+    [InlineData("D&D 5e", GameSystem.Dnd5e)]
+    [InlineData("pathfinder", GameSystem.Pathfinder2e)]
+    [InlineData("call of cthulhu", GameSystem.CallOfCthulhu7e)]
+    [InlineData("shadow", GameSystem.Shadowdark)]
+    [InlineData("dark", GameSystem.Shadowdark)]
+    [InlineData("unknown xyz", GameSystem.Other)]
+    public void TryParseFuzzy_ShouldMapInputToExpectedSystem(string input, GameSystem expected)
+    {
+        var result = GameSystemExtensions.TryParseFuzzy(input);
+
+        Assert.Equal(expected, result);
+    }
+
+    [Theory]
+    [InlineData("днд")]
+    [InlineData("колова")]
+    public void TryParseFuzzy_ShouldReturnOtherForUnmatchedCyrillicInput(string input)
+    {
+        var result = GameSystemExtensions.TryParseFuzzy(input);
+
+        Assert.Equal(GameSystem.Other, result);
+    }
+
+    [Fact]
+    public void TryParseFuzzy_ShouldReturnNullForNullInput()
+    {
+        var result = GameSystemExtensions.TryParseFuzzy(null!);
+
+        Assert.Null(result);
+    }
+
+    [Theory]
+    [InlineData("")]
+    [InlineData("   ")]
+    public void TryParseFuzzy_ShouldReturnNullForEmptyOrWhitespaceInput(string input)
+    {
+        var result = GameSystemExtensions.TryParseFuzzy(input);
+
+        Assert.Null(result);
+    }
+
+    [Theory]
+    [InlineData(GameSystem.Dnd5e, "D&D 5e")]
+    [InlineData(GameSystem.Other, "Другое")]
+    [InlineData(GameSystem.Pathfinder2e, "Pathfinder 2e")]
+    [InlineData(GameSystem.Shadowdark, "Shadowdark")]
+    [InlineData((GameSystem)999, "Другое")]
+    public void ToDisplayName_ShouldReturnExpectedName(GameSystem system, string expected)
+    {
+        var result = system.ToDisplayName();
+
+        Assert.Equal(expected, result);
+    }
+}

tests/GmRelay.Bot.Tests/Features/Landing/DiscordLandingPromisesSmokeTests.cs

@@ -1,5 +1,5 @@
 using GmRelay.Bot.Features.Sessions.CreateSession;
-using GmRelay.Bot.Features.Sessions.RescheduleSession;
+using BotRescheduleHandler = GmRelay.Bot.Features.Sessions.RescheduleSession.HandleRescheduleTimeInputHandler;
 using GmRelay.DiscordBot.Rendering;
 using GmRelay.Shared.Domain;
 using GmRelay.Shared.Features.Sessions.RescheduleSession;
@@ -69,14 +69,14 @@ public sealed class DiscordLandingPromisesSmokeTests
         };
         var deadline = new DateTimeOffset(2026, 5, 20, 18, 0, 0, TimeSpan.Zero);
         var voteParticipants = scenario.ActiveVoteParticipants(firstSessionId);
-        var voteMessage = HandleRescheduleTimeInputHandler.BuildVotingMessage(
+        var voteMessage = BotRescheduleHandler.BuildVotingMessage(
             scenario.Title,
             scenario.Sessions[0].ScheduledAt,
             deadline,
             options,
             voteParticipants,
             []);
-        var voteKeyboard = HandleRescheduleTimeInputHandler.BuildVotingKeyboard(options);
+        var voteKeyboard = BotRescheduleHandler.BuildVotingKeyboard(options);
 
         Assert.Contains("Landing Promise Smoke", voteMessage);
         Assert.Contains("0/2", voteMessage);

tests/GmRelay.Bot.Tests/Features/Landing/TelegramLandingPromisesSmokeTests.cs

@@ -1,5 +1,5 @@
 using GmRelay.Bot.Features.Sessions.CreateSession;
-using GmRelay.Bot.Features.Sessions.RescheduleSession;
+using BotRescheduleHandler = GmRelay.Bot.Features.Sessions.RescheduleSession.HandleRescheduleTimeInputHandler;
 using GmRelay.Shared.Domain;
 using GmRelay.Shared.Features.Sessions.RescheduleSession;
 using GmRelay.Shared.Rendering;
@@ -65,14 +65,14 @@ public sealed class TelegramLandingPromisesSmokeTests
         };
         var deadline = new DateTimeOffset(2026, 5, 20, 18, 0, 0, TimeSpan.Zero);
         var voteParticipants = scenario.ActiveVoteParticipants(firstSessionId);
-        var voteMessage = HandleRescheduleTimeInputHandler.BuildVotingMessage(
+        var voteMessage = BotRescheduleHandler.BuildVotingMessage(
             scenario.Title,
             scenario.Sessions[0].ScheduledAt,
             deadline,
             options,
             voteParticipants,
             []);
-        var voteKeyboard = HandleRescheduleTimeInputHandler.BuildVotingKeyboard(options);
+        var voteKeyboard = BotRescheduleHandler.BuildVotingKeyboard(options);
 
         Assert.Contains("Landing Promise Smoke", voteMessage);
         Assert.Contains("0/2", voteMessage);

tests/GmRelay.Bot.Tests/Features/Sessions/CreateSession/CreateSessionCommandContractTests.cs

@@ -0,0 +1,36 @@
+using GmRelay.Shared.Features.Sessions.CreateSession;
+using GmRelay.Shared.Platform;
+
+namespace GmRelay.Bot.Tests.Features.Sessions.CreateSession;
+
+public sealed class CreateSessionCommandContractTests
+{
+    [Fact]
+    public void CreateSessionCommand_ShouldExposePlatformNeutralContext()
+    {
+        AssertProperty<CreateSessionCommand>("User", typeof(PlatformUser));
+        AssertProperty<CreateSessionCommand>("Group", typeof(PlatformGroup));
+        AssertProperty<CreateSessionCommand>("Title", typeof(string));
+        AssertProperty<CreateSessionCommand>("Link", typeof(string));
+        AssertProperty<CreateSessionCommand>("ScheduledTimes", typeof(IReadOnlyList<DateTimeOffset>));
+        AssertProperty<CreateSessionCommand>("MaxPlayers", typeof(int?));
+        AssertProperty<CreateSessionCommand>("ImageReference", typeof(string));
+        AssertNoTelegramSpecificProperties<CreateSessionCommand>();
+    }
+
+    private static void AssertProperty<T>(string name, Type expectedType)
+    {
+        var property = Assert.Single(typeof(T).GetProperties(), p => p.Name == name);
+        Assert.Equal(expectedType, property.PropertyType);
+    }
+
+    private static void AssertNoTelegramSpecificProperties<T>()
+    {
+        var names = typeof(T).GetProperties().Select(p => p.Name).ToArray();
+        Assert.DoesNotContain(names, name => name.Contains("Telegram", StringComparison.Ordinal));
+        Assert.DoesNotContain("ChatId", names);
+        Assert.DoesNotContain("MessageId", names);
+        Assert.DoesNotContain("TelegramUserId", names);
+        Assert.DoesNotContain("TelegramUsername", names);
+    }
+}

tests/GmRelay.Bot.Tests/Features/Sessions/CreateSession/CreateSessionHandlerTests.cs

@@ -0,0 +1,36 @@
+namespace GmRelay.Bot.Tests.Features.Sessions.CreateSession;
+
+public sealed class CreateSessionHandlerTests
+{
+    [Fact]
+    public async Task SharedHandler_ShouldExist_AndBePlatformNeutral()
+    {
+        var handler = await ReadRepositoryFileAsync("src/GmRelay.Shared/Features/Sessions/CreateSession/CreateSessionHandler.cs");
+
+        Assert.Contains("CreateSessionCommand", handler, StringComparison.Ordinal);
+        Assert.Contains("CreateSessionResult", handler, StringComparison.Ordinal);
+        Assert.Contains("command.User", handler, StringComparison.Ordinal);
+        Assert.Contains("command.Group", handler, StringComparison.Ordinal);
+        Assert.DoesNotContain("ITelegramBotClient", handler, StringComparison.Ordinal);
+        Assert.DoesNotContain("Telegram.Bot", handler, StringComparison.Ordinal);
+        Assert.DoesNotContain("InlineKeyboardMarkup", handler, StringComparison.Ordinal);
+        Assert.DoesNotContain("MessageThreadId", handler, StringComparison.Ordinal);
+    }
+
+    private static async Task<string> ReadRepositoryFileAsync(string relativePath)
+    {
+        var directory = new DirectoryInfo(AppContext.BaseDirectory);
+        while (directory is not null)
+        {
+            var candidate = Path.Combine(directory.FullName, relativePath);
+            if (File.Exists(candidate))
+            {
+                return await File.ReadAllTextAsync(candidate);
+            }
+
+            directory = directory.Parent;
+        }
+
+        throw new FileNotFoundException($"Could not locate repository file '{relativePath}'.");
+    }
+}

tests/GmRelay.Bot.Tests/Features/Sessions/CreateSession/SessionCapacityRulesTests.cs

@@ -21,6 +21,30 @@ public sealed class SessionCapacityRulesTests
         Assert.Equal(ParticipantRegistrationStatus.Waitlisted, status);
     }
 
+    [Fact]
+    public void DecideJoinStatus_ShouldReturnActive_WhenUnlimitedSeats()
+    {
+        var status = SessionCapacityRules.DecideJoinStatus(maxPlayers: null, activeParticipants: 5);
+
+        Assert.Equal(ParticipantRegistrationStatus.Active, status);
+    }
+
+    [Fact]
+    public void DecideJoinStatus_ShouldReturnWaitlisted_WhenOverCapacity()
+    {
+        var status = SessionCapacityRules.DecideJoinStatus(maxPlayers: 3, activeParticipants: 5);
+
+        Assert.Equal(ParticipantRegistrationStatus.Waitlisted, status);
+    }
+
+    [Fact]
+    public void DecideJoinStatus_ShouldReturnActive_WhenZeroActiveAndPositiveMax()
+    {
+        var status = SessionCapacityRules.DecideJoinStatus(maxPlayers: 1, activeParticipants: 0);
+
+        Assert.Equal(ParticipantRegistrationStatus.Active, status);
+    }
+
     [Fact]
     public void CanPromoteWaitlistedPlayer_ShouldRequireWaitlistAndFreeSeat()
     {

tests/GmRelay.Bot.Tests/Features/Sessions/ExportCalendar/ExportCalendarCommandContractTests.cs

@@ -0,0 +1,31 @@
+using GmRelay.Shared.Features.Sessions.ExportCalendar;
+using GmRelay.Shared.Platform;
+
+namespace GmRelay.Bot.Tests.Features.Sessions.ExportCalendar;
+
+public sealed class ExportCalendarCommandContractTests
+{
+    [Fact]
+    public void ExportCalendarCommand_ShouldExposePlatformNeutralContext()
+    {
+        AssertProperty<ExportCalendarCommand>("Group", typeof(PlatformGroup));
+        AssertProperty<ExportCalendarCommand>("User", typeof(PlatformUser));
+        AssertNoTelegramSpecificProperties<ExportCalendarCommand>();
+    }
+
+    private static void AssertProperty<T>(string name, Type expectedType)
+    {
+        var property = Assert.Single(typeof(T).GetProperties(), p => p.Name == name);
+        Assert.Equal(expectedType, property.PropertyType);
+    }
+
+    private static void AssertNoTelegramSpecificProperties<T>()
+    {
+        var names = typeof(T).GetProperties().Select(p => p.Name).ToArray();
+        Assert.DoesNotContain(names, name => name.Contains("Telegram", StringComparison.Ordinal));
+        Assert.DoesNotContain("ChatId", names);
+        Assert.DoesNotContain("MessageId", names);
+        Assert.DoesNotContain("TelegramUserId", names);
+        Assert.DoesNotContain("TelegramUsername", names);
+    }
+}

tests/GmRelay.Bot.Tests/Features/Sessions/ListSessions/ListSessionsCommandContractTests.cs

@@ -0,0 +1,41 @@
+using GmRelay.Shared.Features.Sessions.ListSessions;
+using GmRelay.Shared.Platform;
+
+namespace GmRelay.Bot.Tests.Features.Sessions.ListSessions;
+
+public sealed class ListSessionsCommandContractTests
+{
+    [Fact]
+    public void ListSessionsCommand_ShouldExposePlatformNeutralContext()
+    {
+        AssertProperty<ListSessionsCommand>("Group", typeof(PlatformGroup));
+        AssertProperty<ListSessionsCommand>("User", typeof(PlatformUser));
+        AssertNoTelegramSpecificProperties<ListSessionsCommand>();
+    }
+
+    [Fact]
+    public void DeleteSessionCommand_ShouldExposePlatformNeutralContext()
+    {
+        AssertProperty<DeleteSessionCommand>("SessionId", typeof(Guid));
+        AssertProperty<DeleteSessionCommand>("User", typeof(PlatformUser));
+        AssertProperty<DeleteSessionCommand>("Group", typeof(PlatformGroup));
+        AssertProperty<DeleteSessionCommand>("ScheduleMessage", typeof(PlatformMessageRef));
+        AssertNoTelegramSpecificProperties<DeleteSessionCommand>();
+    }
+
+    private static void AssertProperty<T>(string name, Type expectedType)
+    {
+        var property = Assert.Single(typeof(T).GetProperties(), p => p.Name == name);
+        Assert.Equal(expectedType, property.PropertyType);
+    }
+
+    private static void AssertNoTelegramSpecificProperties<T>()
+    {
+        var names = typeof(T).GetProperties().Select(p => p.Name).ToArray();
+        Assert.DoesNotContain(names, name => name.Contains("Telegram", StringComparison.Ordinal));
+        Assert.DoesNotContain("ChatId", names);
+        Assert.DoesNotContain("MessageId", names);
+        Assert.DoesNotContain("TelegramUserId", names);
+        Assert.DoesNotContain("TelegramUsername", names);
+    }
+}

tests/GmRelay.Bot.Tests/Features/Sessions/ListSessions/SessionListMessageRendererTests.cs

@@ -1,5 +1,6 @@
 using GmRelay.Bot.Features.Sessions.ListSessions;
 using GmRelay.Shared.Domain;
+using GmRelay.Shared.Features.Sessions.ListSessions;
 
 namespace GmRelay.Bot.Tests.Features.Sessions.ListSessions;
 
@@ -22,17 +23,15 @@ public sealed class SessionListMessageRendererTests
                 true)
         };
 
-        var result = SessionListMessageRenderer.Render(sessions);
-        Assert.NotNull(result.Markup);
-        var buttons = result.Markup.InlineKeyboard.SelectMany(row => row).ToList();
+        var text = SessionListMessageRenderer.RenderText(sessions);
+        var actions = SessionListMessageRenderer.RenderActions(sessions);
 
-        Assert.Contains("Ravenloft", result.Text);
-        Assert.Collection(
-            buttons.Select(button => button.CallbackData),
-            callbackData => Assert.Equal($"cancel_session:{sessionId}", callbackData),
-            callbackData => Assert.Equal($"reschedule_session:{sessionId}", callbackData),
-            callbackData => Assert.Equal($"promote_waitlist:{sessionId}", callbackData),
-            callbackData => Assert.Equal($"delete_session:{sessionId}", callbackData));
+        Assert.Contains("Ravenloft", text);
+        Assert.Equal(4, actions.Count);
+        Assert.Contains(actions, a => a.Payload == $"cancel_session:{sessionId}");
+        Assert.Contains(actions, a => a.Payload == $"reschedule_session:{sessionId}");
+        Assert.Contains(actions, a => a.Payload == $"promote_waitlist:{sessionId}");
+        Assert.Contains(actions, a => a.Payload == $"delete_session:{sessionId}");
     }
 
     [Fact]
@@ -51,8 +50,7 @@ public sealed class SessionListMessageRendererTests
                 false)
         };
 
-        var result = SessionListMessageRenderer.Render(sessions);
-
-        Assert.Null(result.Markup);
+        var actions = SessionListMessageRenderer.RenderActions(sessions);
+        Assert.Empty(actions);
     }
 }

tests/GmRelay.Bot.Tests/Features/Sessions/RescheduleSession/HandleRescheduleTimeInputHandlerTests.cs

@@ -1,4 +1,4 @@
-using GmRelay.Bot.Features.Sessions.RescheduleSession;
+using BotHandler = GmRelay.Bot.Features.Sessions.RescheduleSession.HandleRescheduleTimeInputHandler;
 using GmRelay.Shared.Features.Sessions.RescheduleSession;
 
 namespace GmRelay.Bot.Tests.Features.Sessions.RescheduleSession;
@@ -72,7 +72,7 @@ public sealed class HandleRescheduleTimeInputHandlerTests
             new(secondOptionId, bobId, "Bob", null)
         };
 
-        var text = HandleRescheduleTimeInputHandler.BuildVotingMessage(
+        var text = BotHandler.BuildVotingMessage(
             "Shadowrun",
             currentTime,
             deadline,
@@ -101,7 +101,7 @@ public sealed class HandleRescheduleTimeInputHandlerTests
             new(secondOptionId, 2, new DateTimeOffset(2026, 4, 27, 17, 0, 0, TimeSpan.Zero))
         };
 
-        var keyboard = HandleRescheduleTimeInputHandler.BuildVotingKeyboard(options);
+        var keyboard = BotHandler.BuildVotingKeyboard(options);
         var buttons = keyboard.InlineKeyboard.SelectMany(row => row).ToList();
 
         Assert.Collection(

tests/GmRelay.Bot.Tests/Features/Sessions/RescheduleSession/RescheduleCommandContractTests.cs

@@ -0,0 +1,43 @@
+using GmRelay.Shared.Features.Sessions.RescheduleSession;
+using GmRelay.Shared.Platform;
+
+namespace GmRelay.Bot.Tests.Features.Sessions.RescheduleSession;
+
+public sealed class RescheduleCommandContractTests
+{
+    [Fact]
+    public void HandleRescheduleTimeInputCommand_ShouldExposePlatformNeutralContext()
+    {
+        AssertProperty<HandleRescheduleTimeInputCommand>("User", typeof(PlatformUser));
+        AssertProperty<HandleRescheduleTimeInputCommand>("Group", typeof(PlatformGroup));
+        AssertProperty<HandleRescheduleTimeInputCommand>("Text", typeof(string));
+        AssertNoTelegramSpecificProperties<HandleRescheduleTimeInputCommand>();
+    }
+
+    [Fact]
+    public void HandleRescheduleVoteCommand_ShouldExposePlatformNeutralContext()
+    {
+        AssertProperty<HandleRescheduleVoteCommand>("OptionId", typeof(Guid));
+        AssertProperty<HandleRescheduleVoteCommand>("User", typeof(PlatformUser));
+        AssertProperty<HandleRescheduleVoteCommand>("Group", typeof(PlatformGroup));
+        AssertProperty<HandleRescheduleVoteCommand>("InteractionId", typeof(string));
+        AssertProperty<HandleRescheduleVoteCommand>("ScheduleMessage", typeof(PlatformMessageRef));
+        AssertNoTelegramSpecificProperties<HandleRescheduleVoteCommand>();
+    }
+
+    private static void AssertProperty<T>(string name, Type expectedType)
+    {
+        var property = Assert.Single(typeof(T).GetProperties(), p => p.Name == name);
+        Assert.Equal(expectedType, property.PropertyType);
+    }
+
+    private static void AssertNoTelegramSpecificProperties<T>()
+    {
+        var names = typeof(T).GetProperties().Select(p => p.Name).ToArray();
+        Assert.DoesNotContain(names, name => name.Contains("Telegram", StringComparison.Ordinal));
+        Assert.DoesNotContain("ChatId", names);
+        Assert.DoesNotContain("MessageId", names);
+        Assert.DoesNotContain("TelegramUserId", names);
+        Assert.DoesNotContain("TelegramUsername", names);
+    }
+}

tests/GmRelay.Bot.Tests/Infrastructure/Database/PlatformIdentityMigrationTests.cs

@@ -58,7 +58,7 @@ public sealed class PlatformIdentityMigrationTests
     [Fact]
     public async Task Code_ShouldQueryPlayersUsingExternalUserIdFallback()
     {
-        var createHandler = await ReadRepositoryFileAsync("src/GmRelay.Bot/Features/Sessions/CreateSession/CreateSessionHandler.cs");
+        var createHandler = await ReadRepositoryFileAsync("src/GmRelay.Shared/Features/Sessions/CreateSession/CreateSessionHandler.cs");
 
         Assert.Contains("external_user_id", createHandler, StringComparison.Ordinal);
     }
@@ -66,7 +66,7 @@ public sealed class PlatformIdentityMigrationTests
     [Fact]
     public async Task Code_ShouldQueryGroupsUsingExternalGroupIdFallback()
     {
-        var createHandler = await ReadRepositoryFileAsync("src/GmRelay.Bot/Features/Sessions/CreateSession/CreateSessionHandler.cs");
+        var createHandler = await ReadRepositoryFileAsync("src/GmRelay.Shared/Features/Sessions/CreateSession/CreateSessionHandler.cs");
 
         Assert.Contains("external_group_id", createHandler, StringComparison.Ordinal);
     }

tests/GmRelay.Bot.Tests/Infrastructure/Telegram/TelegramPlatformMessengerSourceTests.cs

@@ -20,12 +20,13 @@ public sealed class TelegramPlatformMessengerSourceTests
     [InlineData("src/GmRelay.Bot/Features/Sessions/RescheduleSession/HandleRescheduleTimeInputHandler.cs")]
     [InlineData("src/GmRelay.Bot/Features/Sessions/RescheduleSession/HandleRescheduleVoteHandler.cs")]
     [InlineData("src/GmRelay.Bot/Features/Sessions/RescheduleSession/RescheduleVotingDeadlineService.cs")]
-    [InlineData("src/GmRelay.Bot/Features/Sessions/ExportCalendar/ExportCalendarHandler.cs")]
-    public async Task SessionFlows_ShouldUsePlatformMessengerForOutboundTelegramWork(string relativePath)
+    [InlineData("src/GmRelay.Bot/Features/Sessions/ExportCalendar/ExportCalendarHandler.cs", "src/GmRelay.Shared/Features/Sessions/ExportCalendar/ExportCalendarHandler.cs")]
+    public async Task SessionFlows_ShouldUsePlatformMessengerForOutboundTelegramWork(string relativePath, string? sharedPath = null)
     {
         var source = await ReadRepositoryFileAsync(relativePath);
+        var sharedSource = sharedPath is not null ? await ReadRepositoryFileAsync(sharedPath) : string.Empty;
 
-        Assert.Contains("IPlatformMessenger", source, StringComparison.Ordinal);
+        Assert.Contains("IPlatformMessenger", source + sharedSource, StringComparison.Ordinal);
         Assert.DoesNotContain("BatchMessageEditor.EditBatchMessageAsync", source, StringComparison.Ordinal);
         Assert.DoesNotContain(".AnswerCallbackQuery(", source, StringComparison.Ordinal);
     }

tests/GmRelay.Bot.Tests/Infrastructure/Telegram/TelegramTopicIntegrationSmokeTests.cs

@@ -12,11 +12,11 @@ public sealed class TelegramTopicIntegrationSmokeTests
         Assert.Contains("topic_created_by_bot", migration, StringComparison.Ordinal);
         Assert.Contains("ResolveNewScheduleDestination", createHandler, StringComparison.Ordinal);
         Assert.Contains("message.MessageThreadId", createHandler, StringComparison.Ordinal);
-        Assert.Contains("topic_created_by_bot", createHandler, StringComparison.Ordinal);
+        Assert.Contains("topicCreatedByBot", createHandler, StringComparison.Ordinal);
         Assert.Contains("MissingForumTopicRightsMessage", createHandler, StringComparison.Ordinal);
         Assert.Contains("TopicCreatedByBot", deleteHandler, StringComparison.Ordinal);
         Assert.Contains("ShouldDeleteForumTopic", deleteHandler, StringComparison.Ordinal);
-        Assert.Contains("remainingInTopic", deleteHandler, StringComparison.Ordinal);
+        Assert.Contains("RemainingInTopic", deleteHandler, StringComparison.Ordinal);
     }
 
     [Fact]
@@ -28,6 +28,7 @@ public sealed class TelegramTopicIntegrationSmokeTests
         var cancelHandler = await ReadRepositoryFileAsync("src/GmRelay.Bot/Features/Sessions/CreateSession/CancelSessionHandler.cs");
         var initiateRescheduleHandler = await ReadRepositoryFileAsync("src/GmRelay.Bot/Features/Sessions/RescheduleSession/InitiateRescheduleHandler.cs");
         var rescheduleInputHandler = await ReadRepositoryFileAsync("src/GmRelay.Bot/Features/Sessions/RescheduleSession/HandleRescheduleTimeInputHandler.cs");
+        var sharedRescheduleInputHandler = await ReadRepositoryFileAsync("src/GmRelay.Shared/Features/Sessions/RescheduleSession/HandleRescheduleTimeInputHandler.cs");
         var rescheduleDeadlineService = await ReadRepositoryFileAsync("src/GmRelay.Bot/Features/Sessions/RescheduleSession/RescheduleVotingDeadlineService.cs");
         var telegramMessenger = await ReadRepositoryFileAsync("src/GmRelay.Bot/Infrastructure/Telegram/TelegramPlatformMessenger.cs");
 
@@ -48,9 +49,9 @@ public sealed class TelegramTopicIntegrationSmokeTests
         Assert.Contains("int? MessageThreadId", initiateRescheduleHandler, StringComparison.Ordinal);
         Assert.Contains("TelegramPlatformIds.Group(command.ChatId, command.MessageThreadId)", initiateRescheduleHandler, StringComparison.Ordinal);
 
-        Assert.Contains("int? ThreadId", rescheduleInputHandler, StringComparison.Ordinal);
-        Assert.Contains("s.thread_id AS ThreadId", rescheduleInputHandler, StringComparison.Ordinal);
-        Assert.Contains("TelegramPlatformIds.Group(proposal.TelegramChatId, proposal.ThreadId)", rescheduleInputHandler, StringComparison.Ordinal);
+        Assert.Contains("message.MessageThreadId", rescheduleInputHandler, StringComparison.Ordinal);
+        Assert.Contains("s.thread_id AS ThreadId", sharedRescheduleInputHandler, StringComparison.Ordinal);
+        Assert.Contains("TelegramPlatformIds.Group(message.Chat.Id, message.MessageThreadId", rescheduleInputHandler, StringComparison.Ordinal);
 
         Assert.Contains("int? ThreadId", rescheduleDeadlineService, StringComparison.Ordinal);
         Assert.Contains("s.thread_id AS ThreadId", rescheduleDeadlineService, StringComparison.Ordinal);

tests/GmRelay.Bot.Tests/Web/AuthorizedSessionServiceTests.cs

@@ -2,6 +2,7 @@ using GmRelay.Web.Services;
 using System.Security.Claims;
 using Microsoft.AspNetCore.Http;
 using GmRelay.Shared.Domain;
+using GmRelay.Shared.Features.Showcase;
 
 namespace GmRelay.Bot.Tests.Web;
 
@@ -786,6 +787,9 @@ public sealed class AuthorizedSessionServiceTests
         public bool CreateBatchFromTemplateCalled { get; private set; }
         public bool AddCoGmCalled { get; private set; }
         public bool RemoveCoGmCalled { get; private set; }
+        public bool UpdatePublicGroupSettingsCalled { get; private set; }
+        public bool SetSessionPublicCalled { get; private set; }
+        public bool SetBatchPublicCalled { get; private set; }
         public Guid? LastUpdatedSessionId { get; private set; }
         public Guid? LastUpdatedGroupId { get; private set; }
         public string? LastUpdatedTitle { get; private set; }
@@ -821,6 +825,23 @@ public sealed class AuthorizedSessionServiceTests
         public string? LastAddedCoGmUsername { get; private set; }
         public Guid? LastRemovedCoGmGroupId { get; private set; }
         public long? LastRemovedCoGmTelegramId { get; private set; }
+        public Guid? LastUpdatedPublicGroupId { get; private set; }
+        public string? LastUpdatedPublicSlug { get; private set; }
+        public bool? LastUpdatedPublicScheduleEnabled { get; private set; }
+        public MasterProfileSettings? MasterProfileSettings { get; set; } = new(Guid.NewGuid(), "Owner GM", null, false, null);
+        public bool UpdateMasterProfileCalled { get; private set; }
+        public string? LastMasterProfilePlatform { get; private set; }
+        public string? LastMasterProfileExternalUserId { get; private set; }
+        public string? LastMasterProfileSlug { get; private set; }
+        public bool? LastMasterProfileIsPublic { get; private set; }
+        public string? LastMasterProfileDisplayName { get; private set; }
+        public string? LastMasterProfileBio { get; private set; }
+        public Guid? LastPublicSessionId { get; private set; }
+        public Guid? LastPublicSessionGroupId { get; private set; }
+        public bool? LastSessionPublicValue { get; private set; }
+        public Guid? LastPublicBatchId { get; private set; }
+        public Guid? LastPublicBatchGroupId { get; private set; }
+        public bool? LastBatchPublicValue { get; private set; }
         public bool RemovePlayerCalled { get; private set; }
         public Guid? LastRemovedPlayerSessionId { get; private set; }
         public Guid? LastRemovedPlayerGroupId { get; private set; }
@@ -842,6 +863,67 @@ public sealed class AuthorizedSessionServiceTests
             return Task.FromResult(group);
         }
 
+        public Task<WebPublicGroupSettings?> GetPublicGroupSettingsAsync(Guid groupId)
+        {
+            if (!groupsById.TryGetValue(groupId, out var group))
+            {
+                return Task.FromResult<WebPublicGroupSettings?>(null);
+            }
+
+            var publicSessionCount = sessionsById.Values.Count(session => session.GroupId == groupId && session.IsPublic);
+            return Task.FromResult<WebPublicGroupSettings?>(new(
+                groupId,
+                group.Name,
+                "alpha",
+                false,
+                publicSessionCount));
+        }
+
+        public Task UpdatePublicGroupSettingsAsync(Guid groupId, string? publicSlug, bool publicScheduleEnabled)
+        {
+            UpdatePublicGroupSettingsCalled = true;
+            LastUpdatedPublicGroupId = groupId;
+            LastUpdatedPublicSlug = publicSlug;
+            LastUpdatedPublicScheduleEnabled = publicScheduleEnabled;
+            return Task.CompletedTask;
+        }
+
+        public Task SetSessionPublicAsync(Guid sessionId, Guid groupId, bool isPublic)
+        {
+            SetSessionPublicCalled = true;
+            LastPublicSessionId = sessionId;
+            LastPublicSessionGroupId = groupId;
+            LastSessionPublicValue = isPublic;
+
+            if (sessionsById.TryGetValue(sessionId, out var session))
+            {
+                sessionsById[sessionId] = session with { IsPublic = isPublic };
+            }
+
+            return Task.CompletedTask;
+        }
+
+        public Task SetBatchPublicAsync(Guid batchId, Guid groupId, bool isPublic)
+        {
+            SetBatchPublicCalled = true;
+            LastPublicBatchId = batchId;
+            LastPublicBatchGroupId = groupId;
+            LastBatchPublicValue = isPublic;
+
+            foreach (var session in sessionsById.Values.Where(session => session.BatchId == batchId && session.GroupId == groupId).ToList())
+            {
+                sessionsById[session.Id] = session with { IsPublic = isPublic };
+            }
+
+            return Task.CompletedTask;
+        }
+
+        public Task<WebPublicClub?> GetPublicClubBySlugAsync(string slug) =>
+            Task.FromResult<WebPublicClub?>(null);
+
+        public Task<WebPublicSession?> GetPublicSessionAsync(Guid sessionId) =>
+            Task.FromResult<WebPublicSession?>(null);
+
         public Task<bool> IsGroupManagerAsync(Guid groupId, long telegramId) =>
             Task.FromResult(IsManager(groupId, telegramId));
 
@@ -1121,6 +1203,25 @@ public sealed class AuthorizedSessionServiceTests
         public Task UpsertDiscordUserAsync(string discordId, string displayName, string? avatarUrl) =>
             Task.CompletedTask;
 
+        public Task<MasterProfileSettings?> GetMasterProfileSettingsAsync(string platform, string externalUserId) =>
+            Task.FromResult(MasterProfileSettings);
+
+        public Task UpdateMasterProfileSettingsAsync(string platform, string externalUserId, string? publicSlug, bool isPublic, string displayName, string? bio)
+        {
+            UpdateMasterProfileCalled = true;
+            LastMasterProfilePlatform = platform;
+            LastMasterProfileExternalUserId = externalUserId;
+            LastMasterProfileSlug = publicSlug;
+            LastMasterProfileIsPublic = isPublic;
+            LastMasterProfileDisplayName = displayName;
+            LastMasterProfileBio = bio;
+            MasterProfileSettings = new(Guid.NewGuid(), displayName, publicSlug, isPublic, bio);
+            return Task.CompletedTask;
+        }
+
+        public Task<PublicMasterProfile?> GetPublicMasterProfileBySlugAsync(string slug) =>
+            Task.FromResult<PublicMasterProfile?>(null);
+
         public Task<Guid?> ResolveEffectivePlayerIdAsync(string platform, string externalUserId) =>
             Task.FromResult<Guid?>(Guid.NewGuid());
 
@@ -1136,6 +1237,15 @@ public sealed class AuthorizedSessionServiceTests
         public Task UpsertPlayerAsync(string platform, string externalUserId, string displayName, string? avatarUrl) =>
             Task.CompletedTask;
 
+        public Task<IReadOnlyList<ShowcaseSessionDto>> GetShowcaseSessionsAsync(ShowcaseFilter filter, int page, int pageSize) =>
+            Task.FromResult<IReadOnlyList<ShowcaseSessionDto>>([]);
+
+        public Task<ShowcaseSessionDto?> GetShowcaseSessionAsync(Guid sessionId) =>
+            Task.FromResult<ShowcaseSessionDto?>(null);
+
+        public Task<bool> RegisterFromShowcaseAsync(Guid sessionId, string platform, string externalUserId, string displayName) =>
+            Task.FromResult(false);
+
         private bool IsManager(Guid groupId, long telegramId) =>
             IsOwner(groupId, telegramId) ||
             managers.Any(manager => manager.GroupId == groupId && manager.TelegramId == telegramId);

tests/GmRelay.Bot.Tests/Web/GroupDetailsSourceTests.cs

@@ -0,0 +1,35 @@
+namespace GmRelay.Bot.Tests.Web;
+
+public sealed class GroupDetailsSourceTests
+{
+    [Fact]
+    public async Task GroupDetails_ShouldManageCoGmUsingGroupPlatform()
+    {
+        var source = await ReadRepositoryFileAsync("src/GmRelay.Web/Components/Pages/GroupDetails.razor");
+
+        Assert.Contains("CoGmPlatform", source, StringComparison.Ordinal);
+        Assert.Contains("@CoGmIdLabel", source, StringComparison.Ordinal);
+        Assert.Contains("coGmModel.ExternalUserId", source, StringComparison.Ordinal);
+        Assert.Matches(@"SessionService\.AddCoGmForOwnerAsync\(\s*GroupId,\s*CoGmPlatform,\s*coGmExternalUserId", source);
+        Assert.Matches(@"SessionService\.RemoveCoGmForOwnerAsync\(GroupId,\s*platform,\s*coGmExternalUserId\)", source);
+        Assert.DoesNotContain("Telegram ID co-GM", source, StringComparison.Ordinal);
+        Assert.DoesNotContain("SessionService.RemoveCoGmForOwnerAsync(GroupId, \"Telegram\"", source, StringComparison.Ordinal);
+    }
+
+    private static async Task<string> ReadRepositoryFileAsync(string relativePath)
+    {
+        var directory = new DirectoryInfo(AppContext.BaseDirectory);
+        while (directory is not null)
+        {
+            var candidate = Path.Combine(directory.FullName, relativePath);
+            if (File.Exists(candidate))
+            {
+                return await File.ReadAllTextAsync(candidate);
+            }
+
+            directory = directory.Parent;
+        }
+
+        throw new FileNotFoundException($"Could not locate repository file '{relativePath}'.");
+    }
+}

tests/GmRelay.Bot.Tests/Web/MasterProfilesTests.cs

@@ -0,0 +1,188 @@
+namespace GmRelay.Bot.Tests.Web;
+
+public sealed class MasterProfilesTests
+{
+    [Fact]
+    public async Task MigrationV028_ShouldAddMasterProfilesWithoutExternalIdentifiers()
+    {
+        var migration = await ReadRepositoryFileAsync("src/GmRelay.Bot/Migrations/V028__add_master_profiles.sql");
+
+        Assert.Contains("CREATE TABLE master_profiles", migration, StringComparison.Ordinal);
+        Assert.Contains("player_id", migration, StringComparison.Ordinal);
+        Assert.Contains("public_slug", migration, StringComparison.Ordinal);
+        Assert.Contains("is_public", migration, StringComparison.Ordinal);
+        Assert.Contains("display_name", migration, StringComparison.Ordinal);
+        Assert.Contains("bio", migration, StringComparison.Ordinal);
+        Assert.Contains("ux_master_profiles_public_slug", migration, StringComparison.Ordinal);
+        Assert.DoesNotContain("external_user_id", migration, StringComparison.OrdinalIgnoreCase);
+        Assert.DoesNotContain("telegram_id", migration, StringComparison.OrdinalIgnoreCase);
+        Assert.DoesNotContain("discord", migration, StringComparison.OrdinalIgnoreCase);
+    }
+
+    [Fact]
+    public async Task SessionStore_ShouldExposeSanitizedMasterProfileContracts()
+    {
+        var sessionStore = await ReadRepositoryFileAsync("src/GmRelay.Web/Services/ISessionStore.cs");
+
+        Assert.Contains("MasterProfileSettings", sessionStore, StringComparison.Ordinal);
+        Assert.Contains("PublicMasterProfile", sessionStore, StringComparison.Ordinal);
+        Assert.Contains("PublicMasterClub", sessionStore, StringComparison.Ordinal);
+        Assert.Contains("GetMasterProfileSettingsAsync", sessionStore, StringComparison.Ordinal);
+        Assert.Contains("UpdateMasterProfileSettingsAsync", sessionStore, StringComparison.Ordinal);
+        Assert.Contains("GetPublicMasterProfileBySlugAsync", sessionStore, StringComparison.Ordinal);
+
+        var publicProfileSection = RecordSection(sessionStore, "PublicMasterProfile");
+        Assert.DoesNotContain("AvatarUrl", publicProfileSection, StringComparison.Ordinal);
+        Assert.DoesNotContain("ExternalUserId", publicProfileSection, StringComparison.Ordinal);
+        Assert.DoesNotContain("TelegramId", publicProfileSection, StringComparison.Ordinal);
+        Assert.DoesNotContain("DiscordId", publicProfileSection, StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public async Task PublicMasterProfilePage_ShouldBePublicAndHideTechnicalIdentityData()
+    {
+        var publicProfilePage = await ReadRepositoryFileAsync("src/GmRelay.Web/Components/Pages/PublicMasterProfile.razor");
+
+        Assert.Contains("@page \"/gm/{Slug}\"", publicProfilePage, StringComparison.Ordinal);
+        Assert.Contains("@layout PublicLayout", publicProfilePage, StringComparison.Ordinal);
+        Assert.Contains("GetPublicMasterProfileBySlugAsync", publicProfilePage, StringComparison.Ordinal);
+        Assert.DoesNotContain("@attribute [Authorize]", publicProfilePage, StringComparison.Ordinal);
+        Assert.DoesNotContain("ExternalUserId", publicProfilePage, StringComparison.Ordinal);
+        Assert.DoesNotContain("TelegramId", publicProfilePage, StringComparison.Ordinal);
+        Assert.DoesNotContain("DiscordId", publicProfilePage, StringComparison.Ordinal);
+        Assert.DoesNotContain("AvatarUrl", publicProfilePage, StringComparison.Ordinal);
+        Assert.DoesNotContain("LinkedIdentity", publicProfilePage, StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public async Task ProfilePage_ShouldManageMasterProfilePublication()
+    {
+        var profilePage = await ReadRepositoryFileAsync("src/GmRelay.Web/Components/Pages/Profile.razor");
+        var authorizedService = await ReadRepositoryFileAsync("src/GmRelay.Web/Services/AuthorizedSessionService.cs");
+
+        Assert.Contains("GetMasterProfileSettingsForCurrentUserAsync", profilePage, StringComparison.Ordinal);
+        Assert.Contains("UpdateMasterProfileSettingsForCurrentUserAsync", profilePage, StringComparison.Ordinal);
+        Assert.Contains("masterProfileModel", profilePage, StringComparison.Ordinal);
+        Assert.Contains("PublicMasterProfileUrl", profilePage, StringComparison.Ordinal);
+        Assert.Contains("NormalizeMasterProfileSlug", authorizedService, StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public async Task TelegramLoginEndpoints_ShouldUpsertPlayersForProfileManagement()
+    {
+        var program = await ReadRepositoryFileAsync("src/GmRelay.Web/Program.cs");
+
+        Assert.Contains("ISessionStore sessionStore", EndpointSection(program, "auth/telegram-webapp"), StringComparison.Ordinal);
+        Assert.Contains("sessionStore.UpsertPlayerAsync", EndpointSection(program, "auth/telegram-webapp"), StringComparison.Ordinal);
+        Assert.Contains("ISessionStore sessionStore", EndpointSection(program, "auth/telegram-login"), StringComparison.Ordinal);
+        Assert.Contains("sessionStore.UpsertPlayerAsync", EndpointSection(program, "auth/telegram-login"), StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public async Task PublicGamePages_ShouldLinkPublishedMasterProfilesWithoutPrivateIds()
+    {
+        var publicClubPage = await ReadRepositoryFileAsync("src/GmRelay.Web/Components/Pages/PublicClub.razor");
+        var publicSessionPage = await ReadRepositoryFileAsync("src/GmRelay.Web/Components/Pages/PublicSession.razor");
+        var showcasePage = await ReadRepositoryFileAsync("src/GmRelay.Web/Components/Pages/Showcase.razor");
+        var sessionService = await ReadRepositoryFileAsync("src/GmRelay.Web/Services/SessionService.cs");
+
+        Assert.Contains("MasterProfileSlug", publicClubPage, StringComparison.Ordinal);
+        Assert.Contains("MasterProfileSlug", publicSessionPage, StringComparison.Ordinal);
+        Assert.Contains("MasterProfileSlug", showcasePage, StringComparison.Ordinal);
+        Assert.Contains("master_profiles", sessionService, StringComparison.Ordinal);
+        Assert.DoesNotContain("targetExternalUserId", PublicQuerySection(sessionService), StringComparison.Ordinal);
+        Assert.DoesNotContain("target_platform", PublicQuerySection(sessionService), StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public async Task PublicMasterProfileQueries_ShouldIncludeCoGmManagedPublishedGames()
+    {
+        var sessionService = await ReadRepositoryFileAsync("src/GmRelay.Web/Services/SessionService.cs");
+
+        var clubsQuery = MethodSection(sessionService, "GetPublicClubsForMasterAsync");
+        var sessionsQuery = MethodSection(sessionService, "GetPublicSessionsForMasterAsync");
+
+        Assert.Contains("JOIN group_managers gm", clubsQuery, StringComparison.Ordinal);
+        Assert.Contains("JOIN group_managers gm", sessionsQuery, StringComparison.Ordinal);
+        Assert.DoesNotContain("gm.role = @OwnerRole", clubsQuery, StringComparison.Ordinal);
+        Assert.DoesNotContain("gm.role = @OwnerRole", sessionsQuery, StringComparison.Ordinal);
+    }
+
+    private static string RecordSection(string source, string recordName)
+    {
+        var start = source.IndexOf($"record {recordName}", StringComparison.Ordinal);
+        if (start < 0)
+            return string.Empty;
+
+        var end = source.IndexOf(");", start, StringComparison.Ordinal);
+        return end < 0 ? source[start..] : source[start..(end + 2)];
+    }
+
+    private static string PublicQuerySection(string source)
+    {
+        var start = source.IndexOf("GetPublicMasterProfileBySlugAsync", StringComparison.Ordinal);
+        if (start < 0)
+            return string.Empty;
+
+        var end = source.IndexOf("// --- Identity linking", start, StringComparison.Ordinal);
+        return end < 0 ? source[start..] : source[start..end];
+    }
+
+    private static string MethodSection(string source, string methodName)
+    {
+        var start = -1;
+        var searchFrom = 0;
+        while (searchFrom < source.Length)
+        {
+            var candidate = source.IndexOf(methodName, searchFrom, StringComparison.Ordinal);
+            if (candidate < 0)
+                return string.Empty;
+
+            var lineStart = source.LastIndexOf('\n', candidate);
+            var headerStart = lineStart < 0 ? 0 : lineStart + 1;
+            var header = source[headerStart..candidate];
+            if (header.Contains("private static async Task", StringComparison.Ordinal))
+            {
+                start = candidate;
+                break;
+            }
+
+            searchFrom = candidate + methodName.Length;
+        }
+
+        var nextMethod = source.IndexOf("\n    private static async Task", start + methodName.Length, StringComparison.Ordinal);
+        if (nextMethod < 0)
+        {
+            nextMethod = source.IndexOf("\n    public async Task", start + methodName.Length, StringComparison.Ordinal);
+        }
+
+        return nextMethod < 0 ? source[start..] : source[start..nextMethod];
+    }
+
+    private static string EndpointSection(string source, string route)
+    {
+        var start = source.IndexOf($"\"/{route}\"", StringComparison.Ordinal);
+        if (start < 0)
+            return string.Empty;
+
+        var nextEndpoint = source.IndexOf("app.Map", start + route.Length, StringComparison.Ordinal);
+        return nextEndpoint < 0 ? source[start..] : source[start..nextEndpoint];
+    }
+
+    private static async Task<string> ReadRepositoryFileAsync(string relativePath)
+    {
+        var directory = new DirectoryInfo(AppContext.BaseDirectory);
+        while (directory is not null)
+        {
+            var candidate = Path.Combine(directory.FullName, relativePath);
+            if (File.Exists(candidate))
+            {
+                return await File.ReadAllTextAsync(candidate);
+            }
+
+            directory = directory.Parent;
+        }
+
+        throw new FileNotFoundException($"Could not locate repository file '{relativePath}'.");
+    }
+}

tests/GmRelay.Bot.Tests/Web/PublicClubPagesTests.cs

@@ -0,0 +1,88 @@
+namespace GmRelay.Bot.Tests.Web;
+
+public sealed class PublicClubPagesTests
+{
+    [Fact]
+    public async Task MigrationV026_ShouldAddPublicationControls()
+    {
+        var migration = await ReadRepositoryFileAsync("src/GmRelay.Bot/Migrations/V026__add_public_club_pages.sql");
+
+        Assert.Contains("public_slug", migration, StringComparison.Ordinal);
+        Assert.Contains("public_schedule_enabled", migration, StringComparison.Ordinal);
+        Assert.Contains("is_public", migration, StringComparison.Ordinal);
+        Assert.Contains("ux_game_groups_public_slug", migration, StringComparison.Ordinal);
+        Assert.Contains("ix_sessions_public_schedule", migration, StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public async Task PublicPages_ShouldExposeReadOnlyRoutesWithoutPrivateSessionData()
+    {
+        var publicClubPage = await ReadRepositoryFileAsync("src/GmRelay.Web/Components/Pages/PublicClub.razor");
+        var publicSessionPage = await ReadRepositoryFileAsync("src/GmRelay.Web/Components/Pages/PublicSession.razor");
+
+        Assert.Contains("@page \"/club/{Slug}\"", publicClubPage, StringComparison.Ordinal);
+        Assert.Contains("@page \"/s/{SessionId:guid}\"", publicSessionPage, StringComparison.Ordinal);
+        Assert.Contains("@layout PublicLayout", publicClubPage, StringComparison.Ordinal);
+        Assert.Contains("@layout PublicLayout", publicSessionPage, StringComparison.Ordinal);
+        Assert.DoesNotContain("@attribute [Authorize]", publicClubPage, StringComparison.Ordinal);
+        Assert.DoesNotContain("@attribute [Authorize]", publicSessionPage, StringComparison.Ordinal);
+        Assert.DoesNotContain("JoinLink", publicClubPage, StringComparison.Ordinal);
+        Assert.DoesNotContain("JoinLink", publicSessionPage, StringComparison.Ordinal);
+        Assert.DoesNotContain("WebParticipant", publicClubPage, StringComparison.Ordinal);
+        Assert.DoesNotContain("WebParticipant", publicSessionPage, StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public async Task SessionStore_ShouldFilterPublicPagesByGroupAndSessionPublication()
+    {
+        var sessionStore = await ReadRepositoryFileAsync("src/GmRelay.Web/Services/ISessionStore.cs");
+        var service = await ReadRepositoryFileAsync("src/GmRelay.Web/Services/SessionService.cs");
+
+        Assert.Contains("GetPublicClubBySlugAsync", sessionStore, StringComparison.Ordinal);
+        Assert.Contains("GetPublicSessionAsync", sessionStore, StringComparison.Ordinal);
+        Assert.Contains("SetSessionPublicAsync", sessionStore, StringComparison.Ordinal);
+        Assert.Contains("SetBatchPublicAsync", sessionStore, StringComparison.Ordinal);
+        Assert.Contains("g.public_schedule_enabled = true", service, StringComparison.Ordinal);
+        Assert.Contains("s.is_public = true", service, StringComparison.Ordinal);
+        Assert.Contains("s.status <> @Cancelled", service, StringComparison.Ordinal);
+        Assert.DoesNotContain("p.display_name AS DisplayName,\r\n                   p.external_username", PublicQuerySection(service), StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public async Task Dashboard_ShouldManagePublicationSettings()
+    {
+        var groupDetailsPage = await ReadRepositoryFileAsync("src/GmRelay.Web/Components/Pages/GroupDetails.razor");
+        var authorizedService = await ReadRepositoryFileAsync("src/GmRelay.Web/Services/AuthorizedSessionService.cs");
+
+        Assert.Contains("UpdatePublicGroupSettingsForCurrentUserAsync", groupDetailsPage, StringComparison.Ordinal);
+        Assert.Contains("SetSessionPublicForCurrentUserAsync", groupDetailsPage, StringComparison.Ordinal);
+        Assert.Contains("SetBatchPublicForCurrentUserAsync", groupDetailsPage, StringComparison.Ordinal);
+        Assert.Contains("PublicSessionUrl", groupDetailsPage, StringComparison.Ordinal);
+        Assert.Contains("NormalizePublicSlug", authorizedService, StringComparison.Ordinal);
+        Assert.Contains("IsGroupManagerAsync", authorizedService, StringComparison.Ordinal);
+    }
+
+    private static string PublicQuerySection(string source)
+    {
+        var start = source.IndexOf("GetPublicClubBySlugAsync", StringComparison.Ordinal);
+        var end = source.IndexOf("public async Task<bool> IsGroupManagerAsync", StringComparison.Ordinal);
+        return source[start..end];
+    }
+
+    private static async Task<string> ReadRepositoryFileAsync(string relativePath)
+    {
+        var directory = new DirectoryInfo(AppContext.BaseDirectory);
+        while (directory is not null)
+        {
+            var candidate = Path.Combine(directory.FullName, relativePath);
+            if (File.Exists(candidate))
+            {
+                return await File.ReadAllTextAsync(candidate);
+            }
+
+            directory = directory.Parent;
+        }
+
+        throw new FileNotFoundException($"Could not locate repository file '{relativePath}'.");
+    }
+}