feat: add session capacity waitlist

src/GmRelay.Bot/Features/Confirmation/HandleRsvp/HandleRsvpHandler.cs

@@ -48,9 +48,10 @@ public sealed class HandleRsvpHandler(
                 WHERE sp.session_id = @SessionId
                   AND p.telegram_id = @TelegramUserId
                   AND sp.is_gm = false
+                  AND sp.registration_status = @Active
             )
             """,
-            new { command.SessionId, command.TelegramUserId },
+            new { command.SessionId, command.TelegramUserId, Active = ParticipantRegistrationStatus.Active },
             transaction);
 
         if (!participantExists)
@@ -69,9 +70,10 @@ public sealed class HandleRsvpHandler(
                    responded_at = now()
             WHERE  session_id = @SessionId
               AND  player_id  = (SELECT id FROM players WHERE telegram_id = @TelegramUserId)
+              AND  registration_status = @Active
               AND  rsvp_status != @Status
             """,
-            new { command.SessionId, command.TelegramUserId, command.Status },
+            new { command.SessionId, command.TelegramUserId, command.Status, Active = ParticipantRegistrationStatus.Active },
             transaction);
 
         if (updated == 0)
@@ -156,12 +158,14 @@ public sealed class HandleRsvpHandler(
                     count(*) FILTER (WHERE rsvp_status = @Declined)  AS Declined
                 FROM session_participants
                 WHERE session_id = @SessionId AND is_gm = false
+                  AND registration_status = @Active
                 """,
                 new
                 {
                     command.SessionId,
                     Confirmed = RsvpStatus.Confirmed,
-                    Declined = RsvpStatus.Declined
+                    Declined = RsvpStatus.Declined,
+                    Active = ParticipantRegistrationStatus.Active
                 },
                 transaction);
 
@@ -234,10 +238,12 @@ public sealed class HandleRsvpHandler(
                        sp.rsvp_status AS RsvpStatus
                 FROM session_participants sp
                 JOIN players p ON p.id = sp.player_id
-                WHERE sp.session_id = @SessionId AND sp.is_gm = false
+                WHERE sp.session_id = @SessionId
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Active
                 ORDER BY sp.responded_at NULLS LAST
                 """,
-                new { command.SessionId })).ToList();
+                new { command.SessionId, Active = ParticipantRegistrationStatus.Active })).ToList();
 
             var confirmed = participants.Where(p => p.RsvpStatus == RsvpStatus.Confirmed).ToList();
             var declined = participants.Where(p => p.RsvpStatus == RsvpStatus.Declined).ToList();

src/GmRelay.Bot/Features/Confirmation/SendConfirmation/SendConfirmationHandler.cs

@@ -60,9 +60,11 @@ public sealed class SendConfirmationHandler(
                    p.telegram_username AS TelegramUsername
             FROM session_participants sp
             JOIN players p ON p.id = sp.player_id
-            WHERE sp.session_id = @SessionId AND sp.is_gm = false
+            WHERE sp.session_id = @SessionId
+              AND sp.is_gm = false
+              AND sp.registration_status = @Active
             """,
-            new { SessionId = sessionId })).ToList();
+            new { SessionId = sessionId, Active = ParticipantRegistrationStatus.Active })).ToList();
 
         if (participants.Count == 0)
         {

src/GmRelay.Bot/Features/Reminders/SendJoinLink/SendJoinLinkHandler.cs

@@ -63,8 +63,14 @@ public sealed class SendJoinLinkHandler(
             JOIN players p ON p.id = sp.player_id
             WHERE sp.session_id = @SessionId
               AND sp.rsvp_status = @Confirmed
+              AND sp.registration_status = @Active
             """,
-            new { SessionId = sessionId, Confirmed = RsvpStatus.Confirmed })).ToList();
+            new
+            {
+                SessionId = sessionId,
+                Confirmed = RsvpStatus.Confirmed,
+                Active = ParticipantRegistrationStatus.Active
+            })).ToList();
 
         // 3. Build message with player mentions
         var mentions = string.Join(", ", players.Select(p =>

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

@@ -55,16 +55,22 @@ public sealed class CancelSessionHandler(
 
         // 3. Загружаем весь батч для перерисовки
         var batchSessions = await connection.QueryAsync<SessionBatchDto>(
-            @"SELECT id as SessionId, scheduled_at as ScheduledAt, status as Status FROM sessions WHERE batch_id = @BatchId ORDER BY scheduled_at",
+            @"SELECT id as SessionId, scheduled_at as ScheduledAt, status as Status, max_players as MaxPlayers
+              FROM sessions
+              WHERE batch_id = @BatchId
+              ORDER BY scheduled_at",
             new { BatchId = session.BatchId }, transaction);
 
         var batchParticipants = await connection.QueryAsync<ParticipantBatchDto>(
-            @"SELECT sp.session_id as SessionId, p.display_name as DisplayName, p.telegram_username as TelegramUsername 
+            @"SELECT sp.session_id as SessionId,
+                     p.display_name as DisplayName,
+                     p.telegram_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.responded_at ASC, p.created_at ASC",
+              ORDER BY sp.registration_status ASC, sp.created_at ASC, sp.responded_at ASC, p.created_at ASC",
             new { BatchId = session.BatchId }, transaction);
 
         await transaction.CommitAsync(ct);

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

@@ -32,11 +32,19 @@ public sealed class CreateSessionHandler(
                 cancellationToken: cancellationToken);
         }
 
+        foreach (var seatLimitInput in parseResult.InvalidSeatLimitInputs)
+        {
+            await botClient.SendMessage(
+                message.Chat.Id,
+                $"⚠️ Предупреждение: некорректный лимит мест '{seatLimitInput}'. Укажите целое число больше 0.",
+                cancellationToken: cancellationToken);
+        }
+
         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\nСсылка: https://link",
+                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",
                 cancellationToken: cancellationToken);
             return;
         }
@@ -93,8 +101,8 @@ public sealed class CreateSessionHandler(
             {
                 var sessionId = await connection.ExecuteScalarAsync<Guid>(
                     """
-                    INSERT INTO sessions (batch_id, group_id, title, join_link, scheduled_at, status, thread_id)
-                    VALUES (@BatchId, @GroupId, @Title, @Link, @ScheduledAt, @Status, @ThreadId)
+                    INSERT INTO sessions (batch_id, group_id, title, join_link, scheduled_at, status, thread_id, max_players)
+                    VALUES (@BatchId, @GroupId, @Title, @Link, @ScheduledAt, @Status, @ThreadId, @MaxPlayers)
                     RETURNING id;
                     """,
                     new
@@ -105,11 +113,12 @@ public sealed class CreateSessionHandler(
                         Link = link,
                         ScheduledAt = scheduledAt,
                         ThreadId = messageThreadId,
+                        MaxPlayers = parseResult.MaxPlayers,
                         Status = SessionStatus.Planned
                     },
                     transaction);
 
-                sessions.Add(new SessionBatchDto(sessionId, scheduledAt.UtcDateTime, SessionStatus.Planned));
+                sessions.Add(new SessionBatchDto(sessionId, scheduledAt.UtcDateTime, SessionStatus.Planned, parseResult.MaxPlayers));
             }
 
             await transaction.CommitAsync(cancellationToken);

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

@@ -2,7 +2,6 @@ using Dapper;
 using Npgsql;
 using Telegram.Bot;
 using Telegram.Bot.Types;
-using Telegram.Bot.Types.ReplyMarkups;
 using GmRelay.Shared.Domain;
 using GmRelay.Shared.Rendering;
 
@@ -18,7 +17,7 @@ public sealed record JoinSessionCommand(
     int MessageId);
 
 // DTOs for AOT compilation
-internal sealed record JoinSessionBatchDto(Guid BatchId, string Title);
+internal sealed record JoinSessionBatchDto(Guid BatchId, string Title, int? MaxPlayers);
 
 public sealed class JoinSessionHandler(
     NpgsqlDataSource dataSource,
@@ -29,6 +28,7 @@ public sealed class JoinSessionHandler(
     {
         await using var connection = await dataSource.OpenConnectionAsync(ct);
         await using var transaction = await connection.BeginTransactionAsync(ct);
+        var transactionCommitted = false;
 
         try
         {
@@ -41,12 +41,68 @@ public sealed class JoinSessionHandler(
                 new { TgId = command.TelegramUserId, Name = command.DisplayName, Username = command.TelegramUsername },
                 transaction);
 
-            // 2. Добавляем в участники сессии (статус Pending, так как за 24 часа нужно будет финальное подтверждение)
+            // 2. Блокируем сессию на время расчета мест, чтобы параллельные нажатия не переполнили состав.
+            var batchInfo = await connection.QuerySingleOrDefaultAsync<JoinSessionBatchDto>(
+                @"SELECT batch_id as BatchId, title as Title, max_players as MaxPlayers
+                  FROM sessions
+                  WHERE id = @SessionId
+                  FOR UPDATE",
+                new { command.SessionId },
+                transaction);
+
+            if (batchInfo is null)
+            {
+                await transaction.RollbackAsync(ct);
+                await bot.AnswerCallbackQuery(command.CallbackQueryId, "Сессия не найдена.", cancellationToken: ct);
+                return;
+            }
+
+            var existingRegistrationStatus = await connection.ExecuteScalarAsync<string?>(
+                """
+                SELECT sp.registration_status
+                FROM session_participants sp
+                WHERE sp.session_id = @SessionId
+                  AND sp.player_id = @PlayerId
+                  AND sp.is_gm = false
+                """,
+                new { command.SessionId, PlayerId = playerId },
+                transaction);
+
+            if (existingRegistrationStatus is not null)
+            {
+                await transaction.RollbackAsync(ct);
+                var alreadyText = existingRegistrationStatus == ParticipantRegistrationStatus.Waitlisted
+                    ? "Вы уже в листе ожидания!"
+                    : "Вы уже записаны!";
+                await bot.AnswerCallbackQuery(command.CallbackQueryId, alreadyText, cancellationToken: ct);
+                return;
+            }
+
+            var activeParticipants = await connection.ExecuteScalarAsync<int>(
+                """
+                SELECT COUNT(*)
+                FROM session_participants
+                WHERE session_id = @SessionId
+                  AND is_gm = false
+                  AND registration_status = @Active
+                """,
+                new { command.SessionId, Active = ParticipantRegistrationStatus.Active },
+                transaction);
+
+            var registrationStatus = SessionCapacityRules.DecideJoinStatus(batchInfo.MaxPlayers, activeParticipants);
+
+            // 3. Добавляем в основной состав или лист ожидания. RSVP остается Pending до финального подтверждения.
             var inserted = await connection.ExecuteAsync(
-                @"INSERT INTO session_participants (session_id, player_id, is_gm, rsvp_status)
-                  VALUES (@SessionId, @PlayerId, false, 'Pending')
+                @"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 = command.SessionId, PlayerId = playerId },
+                new
+                {
+                    command.SessionId,
+                    PlayerId = playerId,
+                    Pending = RsvpStatus.Pending,
+                    RegistrationStatus = registrationStatus
+                },
                 transaction);
 
             if (inserted == 0)
@@ -56,26 +112,28 @@ public sealed class JoinSessionHandler(
                 return;
             }
 
-            // 3. Получаем batch_id по session_id
-            var batchInfo = await connection.QuerySingleAsync<JoinSessionBatchDto>(
-                @"SELECT batch_id as BatchId, title as Title FROM sessions WHERE id = @SessionId",
-                new { command.SessionId }, transaction);
-
             // Загружаем весь батч для перерисовки
             var batchSessions = await connection.QueryAsync<SessionBatchDto>(
-                @"SELECT id as SessionId, scheduled_at as ScheduledAt, status as Status FROM sessions WHERE batch_id = @BatchId ORDER BY scheduled_at",
+                @"SELECT id as SessionId, scheduled_at as ScheduledAt, status as Status, max_players as MaxPlayers
+                  FROM sessions
+                  WHERE batch_id = @BatchId
+                  ORDER BY scheduled_at",
                 new { BatchId = batchInfo.BatchId }, transaction);
 
             var batchParticipants = await connection.QueryAsync<ParticipantBatchDto>(
-                @"SELECT sp.session_id as SessionId, p.display_name as DisplayName, p.telegram_username as TelegramUsername 
+                @"SELECT sp.session_id as SessionId,
+                         p.display_name as DisplayName,
+                         p.telegram_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.responded_at ASC, p.created_at ASC",
+                  ORDER BY sp.registration_status ASC, sp.created_at ASC, sp.responded_at ASC, p.created_at ASC",
                 new { BatchId = batchInfo.BatchId }, transaction);
 
             await transaction.CommitAsync(ct);
+            transactionCommitted = true;
 
             // 4. Перерисовываем сообщение
             var renderResult = SessionBatchRenderer.Render(batchInfo.Title, batchSessions.ToList(), batchParticipants.ToList());
@@ -88,13 +146,23 @@ public sealed class JoinSessionHandler(
                 replyMarkup: renderResult.Markup,
                 cancellationToken: ct);
 
-            await bot.AnswerCallbackQuery(command.CallbackQueryId, "Вы успешно записаны!", cancellationToken: ct);
+            var callbackText = registrationStatus == ParticipantRegistrationStatus.Waitlisted
+                ? "Основной состав заполнен. Вы добавлены в лист ожидания."
+                : "Вы успешно записаны!";
+            await bot.AnswerCallbackQuery(command.CallbackQueryId, callbackText, cancellationToken: ct);
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "Ошибка при добавлении игрока к сессии");
-            await transaction.RollbackAsync(ct);
-            await bot.AnswerCallbackQuery(command.CallbackQueryId, "Произошла ошибка при регистрации.", cancellationToken: ct);
+            if (!transactionCommitted)
+            {
+                await transaction.RollbackAsync(ct);
+            }
+
+            var errorText = transactionCommitted
+                ? "Регистрация сохранена, но не удалось обновить сообщение расписания."
+                : "Произошла ошибка при регистрации.";
+            await bot.AnswerCallbackQuery(command.CallbackQueryId, errorText, cancellationToken: ct);
         }
     }
 }

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

@@ -5,14 +5,17 @@ namespace GmRelay.Bot.Features.Sessions.CreateSession;
 internal sealed record NewSessionParseResult(
     string? Title,
     string? Link,
+    int? MaxPlayers,
     IReadOnlyList<DateTimeOffset> ScheduledTimes,
     IReadOnlyList<string> PastTimeInputs,
-    IReadOnlyList<string> InvalidTimeInputs)
+    IReadOnlyList<string> InvalidTimeInputs,
+    IReadOnlyList<string> InvalidSeatLimitInputs)
 {
     public bool IsValid =>
         !string.IsNullOrWhiteSpace(Title) &&
         !string.IsNullOrWhiteSpace(Link) &&
-        ScheduledTimes.Count > 0;
+        ScheduledTimes.Count > 0 &&
+        InvalidSeatLimitInputs.Count == 0;
 }
 
 internal static class NewSessionCommandParser
@@ -20,14 +23,22 @@ internal static class NewSessionCommandParser
     private const string TitlePrefix = "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435:";
     private const string TimePrefix = "\u0412\u0440\u0435\u043c\u044f:";
     private const string LinkPrefix = "\u0421\u0441\u044b\u043b\u043a\u0430:";
+    private static readonly string[] SeatLimitPrefixes =
+    [
+        "\u041c\u0435\u0441\u0442:",
+        "\u041b\u0438\u043c\u0438\u0442:",
+        "\u041c\u0430\u043a\u0441\u0438\u043c\u0443\u043c:"
+    ];
 
     public static NewSessionParseResult Parse(string? text, DateTimeOffset nowUtc)
     {
         string? title = null;
         string? link = null;
+        int? maxPlayers = null;
         var scheduledTimes = new List<DateTimeOffset>();
         var pastTimeInputs = new List<string>();
         var invalidTimeInputs = new List<string>();
+        var invalidSeatLimitInputs = new List<string>();
 
         foreach (var line in (text ?? string.Empty).Split('\n', StringSplitOptions.TrimEntries))
         {
@@ -43,6 +54,23 @@ internal static class NewSessionCommandParser
                 continue;
             }
 
+            var seatLimitPrefix = SeatLimitPrefixes.FirstOrDefault(prefix =>
+                line.StartsWith(prefix, StringComparison.OrdinalIgnoreCase));
+            if (seatLimitPrefix is not null)
+            {
+                var seatLimitInput = line[seatLimitPrefix.Length..].Trim();
+                if (int.TryParse(seatLimitInput, out var parsedMaxPlayers) && parsedMaxPlayers > 0)
+                {
+                    maxPlayers = parsedMaxPlayers;
+                }
+                else
+                {
+                    invalidSeatLimitInputs.Add(seatLimitInput);
+                }
+
+                continue;
+            }
+
             if (!line.StartsWith(TimePrefix, StringComparison.OrdinalIgnoreCase))
             {
                 continue;
@@ -64,6 +92,13 @@ internal static class NewSessionCommandParser
             scheduledTimes.Add(scheduledAt);
         }
 
-        return new NewSessionParseResult(title, link, scheduledTimes, pastTimeInputs, invalidTimeInputs);
+        return new NewSessionParseResult(
+            title,
+            link,
+            maxPlayers,
+            scheduledTimes,
+            pastTimeInputs,
+            invalidTimeInputs,
+            invalidSeatLimitInputs);
     }
 }

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

@@ -0,0 +1,185 @@
+using Dapper;
+using GmRelay.Shared.Domain;
+using GmRelay.Shared.Rendering;
+using Npgsql;
+using Telegram.Bot;
+
+namespace GmRelay.Bot.Features.Sessions.CreateSession;
+
+public sealed record PromoteWaitlistedPlayerCommand(
+    Guid SessionId,
+    long TelegramUserId,
+    string CallbackQueryId,
+    long ChatId,
+    int MessageId);
+
+internal sealed record PromoteWaitlistSessionDto(string Title, Guid BatchId, long GmId, int? MaxPlayers);
+internal sealed record WaitlistedParticipantDto(Guid ParticipantRowId, string DisplayName);
+
+public sealed class PromoteWaitlistedPlayerHandler(
+    NpgsqlDataSource dataSource,
+    ITelegramBotClient bot,
+    ILogger<PromoteWaitlistedPlayerHandler> logger)
+{
+    public async Task HandleAsync(PromoteWaitlistedPlayerCommand command, CancellationToken ct)
+    {
+        await using var connection = await dataSource.OpenConnectionAsync(ct);
+        await using var transaction = await connection.BeginTransactionAsync(ct);
+        var transactionCommitted = false;
+
+        try
+        {
+            var session = await connection.QuerySingleOrDefaultAsync<PromoteWaitlistSessionDto>(
+                """
+                SELECT s.title AS Title,
+                       s.batch_id AS BatchId,
+                       s.max_players AS MaxPlayers,
+                       g.gm_telegram_id AS GmId
+                FROM sessions s
+                JOIN game_groups g ON s.group_id = g.id
+                WHERE s.id = @SessionId
+                FOR UPDATE
+                """,
+                new { command.SessionId },
+                transaction);
+
+            if (session is null)
+            {
+                await transaction.RollbackAsync(ct);
+                await bot.AnswerCallbackQuery(command.CallbackQueryId, "Сессия не найдена.", cancellationToken: ct);
+                return;
+            }
+
+            if (session.GmId != command.TelegramUserId)
+            {
+                await transaction.RollbackAsync(ct);
+                await bot.AnswerCallbackQuery(command.CallbackQueryId, "Только Мастер Игры (GM) может поднимать игроков из листа ожидания.", showAlert: true, cancellationToken: ct);
+                return;
+            }
+
+            var activeParticipants = await connection.ExecuteScalarAsync<int>(
+                """
+                SELECT COUNT(*)
+                FROM session_participants
+                WHERE session_id = @SessionId
+                  AND is_gm = false
+                  AND registration_status = @Active
+                """,
+                new { command.SessionId, Active = ParticipantRegistrationStatus.Active },
+                transaction);
+
+            var waitlistedParticipants = await connection.ExecuteScalarAsync<int>(
+                """
+                SELECT COUNT(*)
+                FROM session_participants
+                WHERE session_id = @SessionId
+                  AND is_gm = false
+                  AND registration_status = @Waitlisted
+                """,
+                new { command.SessionId, Waitlisted = ParticipantRegistrationStatus.Waitlisted },
+                transaction);
+
+            if (waitlistedParticipants == 0)
+            {
+                await transaction.RollbackAsync(ct);
+                await bot.AnswerCallbackQuery(command.CallbackQueryId, "Лист ожидания пуст.", cancellationToken: ct);
+                return;
+            }
+
+            if (!SessionCapacityRules.CanPromoteWaitlistedPlayer(session.MaxPlayers, activeParticipants, waitlistedParticipants))
+            {
+                await transaction.RollbackAsync(ct);
+                await bot.AnswerCallbackQuery(command.CallbackQueryId, "Нет свободных мест. Увеличьте лимит перед повышением игрока.", showAlert: true, cancellationToken: ct);
+                return;
+            }
+
+            var promoted = await connection.QuerySingleAsync<WaitlistedParticipantDto>(
+                """
+                SELECT sp.id AS ParticipantRowId,
+                       p.display_name AS DisplayName
+                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 = @Waitlisted
+                ORDER BY sp.created_at ASC, sp.id ASC
+                LIMIT 1
+                FOR UPDATE OF sp
+                """,
+                new { command.SessionId, Waitlisted = ParticipantRegistrationStatus.Waitlisted },
+                transaction);
+
+            await connection.ExecuteAsync(
+                """
+                UPDATE session_participants
+                SET registration_status = @Active,
+                    rsvp_status = @Pending,
+                    responded_at = NULL
+                WHERE id = @ParticipantRowId
+                """,
+                new
+                {
+                    promoted.ParticipantRowId,
+                    Active = ParticipantRegistrationStatus.Active,
+                    Pending = RsvpStatus.Pending
+                },
+                transaction);
+
+            var batchSessions = (await connection.QueryAsync<SessionBatchDto>(
+                """
+                SELECT id AS SessionId,
+                       scheduled_at AS ScheduledAt,
+                       status AS Status,
+                       max_players AS MaxPlayers
+                FROM sessions
+                WHERE batch_id = @BatchId
+                ORDER BY scheduled_at
+                """,
+                new { session.BatchId },
+                transaction)).ToList();
+
+            var batchParticipants = (await connection.QueryAsync<ParticipantBatchDto>(
+                """
+                SELECT sp.session_id AS SessionId,
+                       p.display_name AS DisplayName,
+                       p.telegram_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 { session.BatchId },
+                transaction)).ToList();
+
+            await transaction.CommitAsync(ct);
+            transactionCommitted = true;
+
+            var renderResult = SessionBatchRenderer.Render(session.Title, batchSessions, batchParticipants);
+
+            await bot.EditMessageText(
+                chatId: command.ChatId,
+                messageId: command.MessageId,
+                text: renderResult.Text,
+                parseMode: Telegram.Bot.Types.Enums.ParseMode.Html,
+                replyMarkup: renderResult.Markup,
+                cancellationToken: ct);
+
+            await bot.AnswerCallbackQuery(command.CallbackQueryId, $"{promoted.DisplayName} переведен(а) в основной состав.", cancellationToken: ct);
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "Ошибка при повышении игрока из листа ожидания для сессии {SessionId}", command.SessionId);
+            if (!transactionCommitted)
+            {
+                await transaction.RollbackAsync(ct);
+            }
+
+            var errorText = transactionCommitted
+                ? "Игрок повышен, но не удалось обновить сообщение расписания."
+                : "Ошибка при обновлении листа ожидания.";
+            await bot.AnswerCallbackQuery(command.CallbackQueryId, errorText, cancellationToken: ct);
+        }
+    }
+}

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

@@ -74,16 +74,23 @@ public sealed class DeleteSessionHandler(
         // 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, 
-                     COUNT(sp.id) FILTER (WHERE sp.is_gm = false) as PlayerCount,
+            @"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,
                      g.gm_telegram_id as GmId
               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.telegram_chat_id = @ChatId AND s.status != @Cancelled AND s.scheduled_at > NOW()
-              GROUP BY s.id, s.title, s.scheduled_at, s.status, g.gm_telegram_id
+              GROUP BY s.id, s.title, s.scheduled_at, s.status, s.max_players, g.gm_telegram_id
               ORDER BY s.scheduled_at ASC",
-            new { ChatId = command.ChatId, Cancelled = SessionStatus.Cancelled });
+            new
+            {
+                ChatId = command.ChatId,
+                Cancelled = SessionStatus.Cancelled,
+                Active = ParticipantRegistrationStatus.Active,
+                Waitlisted = ParticipantRegistrationStatus.Waitlisted
+            });
 
         var sessionsList = sessions.ToList();
 
@@ -96,7 +103,11 @@ public sealed class DeleteSessionHandler(
         var text = "📅 <b>Ближайшие игры:</b>\n\n";
         foreach (var s in sessionsList)
         {
-            text += $"🔹 <b>{s.ScheduledAt.FormatMoscow()}</b> — {System.Net.WebUtility.HtmlEncode(s.Title)} (Участников: {s.PlayerCount})\n";
+            var seats = s.MaxPlayers.HasValue
+                ? $"{s.PlayerCount}/{s.MaxPlayers.Value}"
+                : s.PlayerCount.ToString(System.Globalization.CultureInfo.InvariantCulture);
+            var waitlist = s.WaitlistCount > 0 ? $", ожидание: {s.WaitlistCount}" : string.Empty;
+            text += $"🔹 <b>{s.ScheduledAt.FormatMoscow()}</b> — {System.Net.WebUtility.HtmlEncode(s.Title)} (Места: {seats}{waitlist})\n";
         }
 
         var isGm = command.TelegramUserId == sessionsList.First().GmId;

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

@@ -6,7 +6,7 @@ using Telegram.Bot.Types;
 
 namespace GmRelay.Bot.Features.Sessions.ListSessions;
 
-internal sealed record SessionListItemDto(Guid Id, string Title, DateTime ScheduledAt, string Status, int PlayerCount, long GmId);
+internal sealed record SessionListItemDto(Guid Id, string Title, DateTime ScheduledAt, string Status, int? MaxPlayers, int PlayerCount, int WaitlistCount, long GmId);
 
 public sealed class ListSessionsHandler(
     NpgsqlDataSource dataSource,
@@ -17,16 +17,23 @@ public sealed class ListSessionsHandler(
         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, 
-                     COUNT(sp.id) FILTER (WHERE sp.is_gm = false) as PlayerCount,
+            @"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,
                      g.gm_telegram_id as GmId
               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.telegram_chat_id = @ChatId AND s.status != @Cancelled AND s.scheduled_at > NOW()
-              GROUP BY s.id, s.title, s.scheduled_at, s.status, g.gm_telegram_id
+              GROUP BY s.id, s.title, s.scheduled_at, s.status, s.max_players, g.gm_telegram_id
               ORDER BY s.scheduled_at ASC",
-            new { ChatId = message.Chat.Id, Cancelled = SessionStatus.Cancelled });
+            new
+            {
+                ChatId = message.Chat.Id,
+                Cancelled = SessionStatus.Cancelled,
+                Active = ParticipantRegistrationStatus.Active,
+                Waitlisted = ParticipantRegistrationStatus.Waitlisted
+            });
 
         var sessionsList = sessions.ToList();
 
@@ -42,7 +49,11 @@ public sealed class ListSessionsHandler(
         var text = "📅 <b>Ближайшие игры:</b>\n\n";
         foreach (var s in sessionsList)
         {
-            text += $"🔹 <b>{s.ScheduledAt.FormatMoscow()}</b> — {System.Net.WebUtility.HtmlEncode(s.Title)} (Участников: {s.PlayerCount})\n";
+            var seats = s.MaxPlayers.HasValue
+                ? $"{s.PlayerCount}/{s.MaxPlayers.Value}"
+                : s.PlayerCount.ToString(System.Globalization.CultureInfo.InvariantCulture);
+            var waitlist = s.WaitlistCount > 0 ? $", ожидание: {s.WaitlistCount}" : string.Empty;
+            text += $"🔹 <b>{s.ScheduledAt.FormatMoscow()}</b> — {System.Net.WebUtility.HtmlEncode(s.Title)} (Места: {seats}{waitlist})\n";
         }
 
         var isGm = message.From?.Id == sessionsList.First().GmId;

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

@@ -89,9 +89,11 @@ public sealed class HandleRescheduleTimeInputHandler(
             SELECT p.id AS PlayerId, p.display_name AS DisplayName, p.telegram_username AS TelegramUsername
             FROM session_participants sp
             JOIN players p ON p.id = sp.player_id
-            WHERE sp.session_id = @SessionId AND sp.is_gm = false
+            WHERE sp.session_id = @SessionId
+              AND sp.is_gm = false
+              AND sp.registration_status = @Active
             """,
-            new { proposal.SessionId })).ToList();
+            new { proposal.SessionId, Active = ParticipantRegistrationStatus.Active })).ToList();
 
         // 4. If no participants — reschedule immediately
         if (participants.Count == 0)
@@ -214,17 +216,20 @@ public sealed class HandleRescheduleTimeInputHandler(
             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 FROM sessions WHERE batch_id = @BatchId ORDER BY scheduled_at",
+                "SELECT id AS SessionId, scheduled_at AS ScheduledAt, status AS Status, max_players AS MaxPlayers 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.telegram_username AS TelegramUsername
+                SELECT sp.session_id AS SessionId,
+                       p.display_name AS DisplayName,
+                       p.telegram_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.responded_at ASC, p.created_at ASC
+                ORDER BY sp.registration_status ASC, sp.created_at ASC, sp.responded_at ASC, p.created_at ASC
                 """,
                 new { proposal.BatchId })).ToList();
 

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

@@ -74,8 +74,9 @@ public sealed class HandleRescheduleVoteHandler(
             WHERE sp.session_id = @SessionId
               AND p.telegram_id = @TelegramUserId
               AND sp.is_gm = false
+              AND sp.registration_status = @Active
             """,
-            new { proposal.SessionId, command.TelegramUserId },
+            new { proposal.SessionId, command.TelegramUserId, Active = ParticipantRegistrationStatus.Active },
             transaction);
 
         if (playerId is null)
@@ -107,9 +108,11 @@ public sealed class HandleRescheduleVoteHandler(
                        p.telegram_username AS TelegramUsername
                 FROM session_participants sp
                 JOIN players p ON p.id = sp.player_id
-                WHERE sp.session_id = @SessionId AND sp.is_gm = false
+                WHERE sp.session_id = @SessionId
+                  AND sp.is_gm = false
+                  AND sp.registration_status = @Active
                 """,
-                new { proposal.SessionId },
+                new { proposal.SessionId, Active = ParticipantRegistrationStatus.Active },
                 transaction)).ToList();
 
         var approvedPlayerIds = command.Vote.Equals("no", StringComparison.OrdinalIgnoreCase)
@@ -187,8 +190,9 @@ public sealed class HandleRescheduleVoteHandler(
                     SET rsvp_status = 'Pending',
                         responded_at = NULL
                     WHERE session_id = @SessionId AND is_gm = false
+                      AND registration_status = @Active
                     """,
-                    new { proposal.SessionId },
+                    new { proposal.SessionId, Active = ParticipantRegistrationStatus.Active },
                     transaction);
             }
 
@@ -260,19 +264,20 @@ public sealed class HandleRescheduleVoteHandler(
             await using var connection = await dataSource.OpenConnectionAsync(ct);
 
             var batchSessions = (await connection.QueryAsync<SessionBatchDto>(
-                "SELECT id AS SessionId, scheduled_at AS ScheduledAt, status AS Status FROM sessions WHERE batch_id = @BatchId ORDER BY scheduled_at",
+                "SELECT id AS SessionId, scheduled_at AS ScheduledAt, status AS Status, max_players AS MaxPlayers 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.telegram_username AS TelegramUsername
+                       p.telegram_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.responded_at ASC, p.created_at ASC
+                ORDER BY sp.registration_status ASC, sp.created_at ASC, sp.responded_at ASC, p.created_at ASC
                 """,
                 new { proposal.BatchId })).ToList();
 

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

@@ -20,6 +20,7 @@ public sealed class UpdateRouter(
     HandleRsvpHandler rsvpHandler,
     CreateSessionHandler createSessionHandler,
     JoinSessionHandler joinSessionHandler,
+    PromoteWaitlistedPlayerHandler promoteWaitlistedPlayerHandler,
     CancelSessionHandler cancelSessionHandler,
     DeleteSessionHandler deleteSessionHandler,
     ListSessionsHandler listSessionsHandler,
@@ -85,6 +86,19 @@ public sealed class UpdateRouter(
             return;
         }
 
+        if (action == "promote_waitlist" && parts.Length >= 2 && Guid.TryParse(parts[1], out var promoteSessionId))
+        {
+            var command = new PromoteWaitlistedPlayerCommand(
+                SessionId: promoteSessionId,
+                TelegramUserId: query.From.Id,
+                CallbackQueryId: query.Id,
+                ChatId: message.Chat.Id,
+                MessageId: message.MessageId);
+
+            await promoteWaitlistedPlayerHandler.HandleAsync(command, ct);
+            return;
+        }
+
         if (action == "delete_session" && parts.Length >= 2 && Guid.TryParse(parts[1], out var deleteSessionId))
         {
             var command = new DeleteSessionCommand(
@@ -192,6 +206,7 @@ public sealed class UpdateRouter(
                         /newsession
                         Название: My Game
                         Время: 15.05.2026 19:30
+                        Мест: 4
                         Ссылка: https://link
 
                         /listsessions — список предстоящих сессий

src/GmRelay.Bot/Migrations/V006__add_session_capacity_waitlist.sql

@@ -0,0 +1,16 @@
+-- Add per-session seat limits and participant waitlist support.
+ALTER TABLE sessions
+    ADD COLUMN max_players INTEGER,
+    ADD CONSTRAINT ck_sessions_max_players CHECK (max_players IS NULL OR max_players > 0);
+
+ALTER TABLE session_participants
+    ADD COLUMN registration_status VARCHAR(50) NOT NULL DEFAULT 'Active'
+        CHECK (registration_status IN ('Active', 'Waitlisted')),
+    ADD COLUMN created_at TIMESTAMPTZ NOT NULL DEFAULT now();
+
+CREATE INDEX ix_session_participants_session_registration_status
+    ON session_participants (session_id, registration_status);
+
+CREATE INDEX ix_session_participants_waitlist_order
+    ON session_participants (session_id, created_at, id)
+    WHERE registration_status = 'Waitlisted';

src/GmRelay.Bot/Program.cs

@@ -54,6 +54,7 @@ builder.Services.AddSingleton<HandleRsvpHandler>();
 builder.Services.AddSingleton<SendJoinLinkHandler>();
 builder.Services.AddSingleton<CreateSessionHandler>();
 builder.Services.AddSingleton<JoinSessionHandler>();
+builder.Services.AddSingleton<PromoteWaitlistedPlayerHandler>();
 builder.Services.AddSingleton<CancelSessionHandler>();
 builder.Services.AddSingleton<GmRelay.Bot.Features.Sessions.ListSessions.DeleteSessionHandler>();
 builder.Services.AddSingleton<GmRelay.Bot.Features.Sessions.ListSessions.ListSessionsHandler>();

src/GmRelay.ServiceDefaults/GmRelay.ServiceDefaults.csproj

@@ -12,11 +12,11 @@
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.2.0" />
     <PackageReference Include="Microsoft.Extensions.ServiceDiscovery" Version="10.2.0" />
-    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.0" />
-    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.15.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.15.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.15.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.15.0" />
+    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.3" />
+    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.15.3" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.15.2" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.15.1" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.15.1" />
   </ItemGroup>
 
 </Project>

src/GmRelay.Shared/Domain/ParticipantRegistrationStatus.cs

@@ -0,0 +1,9 @@
+namespace GmRelay.Shared.Domain;
+
+public static class ParticipantRegistrationStatus
+{
+    public const string Active = "Active";
+    public const string Waitlisted = "Waitlisted";
+
+    public static readonly string[] All = [Active, Waitlisted];
+}

src/GmRelay.Shared/Domain/SessionCapacityRules.cs

@@ -0,0 +1,26 @@
+namespace GmRelay.Shared.Domain;
+
+public static class SessionCapacityRules
+{
+    public static string DecideJoinStatus(int? maxPlayers, int activeParticipants)
+    {
+        if (!maxPlayers.HasValue)
+        {
+            return ParticipantRegistrationStatus.Active;
+        }
+
+        return activeParticipants < maxPlayers.Value
+            ? ParticipantRegistrationStatus.Active
+            : ParticipantRegistrationStatus.Waitlisted;
+    }
+
+    public static bool CanPromoteWaitlistedPlayer(int? maxPlayers, int activeParticipants, int waitlistedParticipants)
+    {
+        if (waitlistedParticipants <= 0)
+        {
+            return false;
+        }
+
+        return !maxPlayers.HasValue || activeParticipants < maxPlayers.Value;
+    }
+}

src/GmRelay.Shared/Rendering/SessionBatchRenderer.cs

@@ -3,8 +3,8 @@ using Telegram.Bot.Types.ReplyMarkups;
 
 namespace GmRelay.Shared.Rendering;
 
-public sealed record SessionBatchDto(Guid SessionId, DateTime ScheduledAt, string Status);
-public sealed record ParticipantBatchDto(Guid SessionId, string DisplayName, string? TelegramUsername);
+public sealed record SessionBatchDto(Guid SessionId, DateTime ScheduledAt, string Status, int? MaxPlayers);
+public sealed record ParticipantBatchDto(Guid SessionId, string DisplayName, string? TelegramUsername, string RegistrationStatus);
 
 public static class SessionBatchRenderer
 {
@@ -22,10 +22,17 @@ public static class SessionBatchRenderer
 
         foreach (var session in activeSessions)
         {
-            var sessionPlayers = participants.Where(p => p.SessionId == session.SessionId).ToList();
+            var sessionPlayers = participants
+                .Where(p => p.SessionId == session.SessionId && p.RegistrationStatus == ParticipantRegistrationStatus.Active)
+                .ToList();
+            var waitlistedPlayers = participants
+                .Where(p => p.SessionId == session.SessionId && p.RegistrationStatus == ParticipantRegistrationStatus.Waitlisted)
+                .ToList();
             
             messageText += $"📅 <b>{session.ScheduledAt.FormatMoscow()}</b>\n";
-            messageText += $"👥 Игроки ({sessionPlayers.Count}):\n";
+            messageText += session.MaxPlayers.HasValue
+                ? $"👥 Места: {sessionPlayers.Count}/{session.MaxPlayers.Value}\n"
+                : $"👥 Игроки ({sessionPlayers.Count}):\n";
             
             if (sessionPlayers.Count > 0)
             {
@@ -36,6 +43,12 @@ public static class SessionBatchRenderer
                 messageText += "  <i>Пока никто не записался</i>\n";
             }
 
+            if (waitlistedPlayers.Count > 0)
+            {
+                messageText += $"⏳ Лист ожидания ({waitlistedPlayers.Count}):\n";
+                messageText += string.Join("\n", waitlistedPlayers.Select(p => $"  ⏱ {(p.TelegramUsername != null ? "@" + p.TelegramUsername : p.DisplayName)}")) + "\n";
+            }
+
             if (SessionStatus.IsCancelled(session.Status))
             {
                 messageText += "❌ <i>Сессия отменена</i>\n\n";
@@ -46,13 +59,27 @@ public static class SessionBatchRenderer
                 var dateTitle = session.ScheduledAt.FormatMoscowShort();
                 buttons.Add(new[]
                 {
-                    InlineKeyboardButton.WithCallbackData($"✋ На {dateTitle}", $"join_session:{session.SessionId}"),
+                    InlineKeyboardButton.WithCallbackData(GetJoinButtonText(session, sessionPlayers.Count, dateTitle), $"join_session:{session.SessionId}"),
                     InlineKeyboardButton.WithCallbackData($"❌ Отменить {dateTitle} (ГМ)", $"cancel_session:{session.SessionId}"),
                     InlineKeyboardButton.WithCallbackData($"⏰ (ГМ)", $"reschedule_session:{session.SessionId}")
-                });
+                }
+                .Concat(SessionCapacityRules.CanPromoteWaitlistedPlayer(session.MaxPlayers, sessionPlayers.Count, waitlistedPlayers.Count)
+                    ? [InlineKeyboardButton.WithCallbackData($"⬆️ Из ожидания {dateTitle} (ГМ)", $"promote_waitlist:{session.SessionId}")]
+                    : [])
+                .ToArray());
             }
         }
 
         return (messageText, new InlineKeyboardMarkup(buttons));
     }
+
+    private static string GetJoinButtonText(SessionBatchDto session, int activePlayers, string dateTitle)
+    {
+        if (session.MaxPlayers.HasValue && activePlayers >= session.MaxPlayers.Value)
+        {
+            return $"⏳ В лист ожидания {dateTitle}";
+        }
+
+        return $"✋ На {dateTitle}";
+    }
 }

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

@@ -47,7 +47,7 @@
                     </button>
                 </form>
 
-                <div class="nav-version">v1.1.0</div>
+                <div class="nav-version">v1.2.0</div>
             </div>
         </Authorized>
         <NotAuthorized>

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

@@ -51,6 +51,12 @@
                     <InputText @bind-Value="model.JoinLink" class="gm-form-control" placeholder="Ссылка на Discord или VTT" />
                 </div>
 
+                <div class="gm-form-group">
+                    <label class="gm-form-label">Лимит мест</label>
+                    <InputNumber @bind-Value="model.MaxPlayers" class="gm-form-control" min="1" placeholder="Без лимита" />
+                    <div class="gm-form-hint">Пустое значение означает запись без лимита. Если лимит заполнен, новые игроки попадут в лист ожидания.</div>
+                </div>
+
                 <div style="display: flex; gap: 0.75rem; margin-top: 1.5rem;">
                     <button type="submit" class="btn-gm btn-gm-success" disabled="@isSubmitting">
                         @(isSubmitting ? "⏳ Сохранение..." : "✅ Сохранить изменения")
@@ -97,6 +103,7 @@
         model.Title = session.Title;
         model.ScheduledAtLocal = session.ScheduledAt.ToMoscow();
         model.JoinLink = session.JoinLink;
+        model.MaxPlayers = session.MaxPlayers;
     }
 
     private async Task HandleSubmit()
@@ -115,7 +122,7 @@
 
             var utcTime = new DateTimeOffset(model.ScheduledAtLocal, TimeSpan.FromHours(3)).ToUniversalTime().UtcDateTime;
 
-            await SessionService.UpdateSessionForGmAsync(SessionId, telegramId, model.Title, utcTime, model.JoinLink);
+            await SessionService.UpdateSessionForGmAsync(SessionId, telegramId, model.Title, utcTime, model.JoinLink, model.MaxPlayers);
             Navigation.NavigateTo($"/group/{session!.GroupId}");
         }
         catch (SessionAccessDeniedException)
@@ -139,5 +146,6 @@
         public string Title { get; set; } = "";
         public DateTime ScheduledAtLocal { get; set; } = DateTime.Now;
         public string JoinLink { get; set; } = "";
+        public int? MaxPlayers { get; set; }
     }
 }

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

@@ -20,6 +20,13 @@
         <h2>📅 Предстоящие игры</h2>
     </div>
 
+    @if (!string.IsNullOrEmpty(errorMessage))
+    {
+        <div class="gm-alert gm-alert-danger" style="margin-bottom: 1rem;">
+            ⚠️ @errorMessage
+        </div>
+    }
+
     @if (sessions == null)
     {
         <div class="glass-card" style="padding: 2rem;">
@@ -48,6 +55,7 @@
                     <tr>
                         <th>Название</th>
                         <th>Время (МСК)</th>
+                        <th>Места</th>
                         <th>Статус</th>
                         <th>Ссылка</th>
                         <th>Действие</th>
@@ -59,6 +67,7 @@
                         <tr>
                             <td style="color: var(--text-primary); font-weight: 500;">@session.Title</td>
                             <td>@session.ScheduledAt.FormatMoscow()</td>
+                            <td>@FormatSeats(session)</td>
                             <td>
                                 <span class="status-badge @GetStatusClass(session.Status)">@TranslateStatus(session.Status)</span>
                             </td>
@@ -69,9 +78,17 @@
                                 </a>
                             </td>
                             <td>
-                                <a href="/session/edit/@session.Id" class="btn-gm btn-gm-outline" style="font-size: 0.8125rem; padding: 0.375rem 0.75rem;">
-                                    ✏️ Изменить
-                                </a>
+                                <div style="display: flex; gap: 0.5rem; flex-wrap: wrap;">
+                                    <a href="/session/edit/@session.Id" class="btn-gm btn-gm-outline" style="font-size: 0.8125rem; padding: 0.375rem 0.75rem;">
+                                        ✏️ Изменить
+                                    </a>
+                                    @if (CanPromote(session))
+                                    {
+                                        <button type="button" class="btn-gm btn-gm-success" style="font-size: 0.8125rem; padding: 0.375rem 0.75rem;" disabled="@(promotingSessionId == session.Id)" @onclick="() => PromoteWaitlisted(session.Id)">
+                                            @(promotingSessionId == session.Id ? "⏳ Поднимаем..." : "⬆️ Из ожидания")
+                                        </button>
+                                    }
+                                </div>
                             </td>
                         </tr>
                     }
@@ -93,6 +110,10 @@
                             <span>🕐 Время</span>
                             <span style="color: var(--text-primary);">@session.ScheduledAt.FormatMoscow()</span>
                         </div>
+                        <div class="session-card-row">
+                            <span>👥 Места</span>
+                            <span style="color: var(--text-primary);">@FormatSeats(session)</span>
+                        </div>
                         <div class="session-card-row">
                             <span>🔗 Ссылка</span>
                             <a href="@session.JoinLink" target="_blank" rel="noopener noreferrer">Подключиться ↗</a>
@@ -102,6 +123,12 @@
                         <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>
+                        @if (CanPromote(session))
+                        {
+                            <button type="button" class="btn-gm btn-gm-success" style="flex: 1; justify-content: center; font-size: 0.8125rem; padding: 0.5rem;" disabled="@(promotingSessionId == session.Id)" @onclick="() => PromoteWaitlisted(session.Id)">
+                                @(promotingSessionId == session.Id ? "⏳ Поднимаем..." : "⬆️ Из ожидания")
+                            </button>
+                        }
                     </div>
                 </div>
             }
@@ -112,11 +139,14 @@
 @code {
     [Parameter] public Guid GroupId { get; set; }
     private List<WebSession>? sessions;
+    private Guid? promotingSessionId;
+    private long telegramId;
+    private string? errorMessage;
 
     protected override async Task OnInitializedAsync()
     {
         var authState = await AuthStateProvider.GetAuthenticationStateAsync();
-        if (!authState.User.TryGetTelegramId(out var telegramId))
+        if (!authState.User.TryGetTelegramId(out telegramId))
         {
             Navigation.NavigateTo("/access-denied");
             return;
@@ -129,6 +159,45 @@
         }
     }
 
+    private async Task PromoteWaitlisted(Guid sessionId)
+    {
+        errorMessage = null;
+        promotingSessionId = sessionId;
+
+        try
+        {
+            await SessionService.PromoteWaitlistedPlayerForGmAsync(sessionId, telegramId);
+            sessions = await SessionService.GetUpcomingSessionsForGmAsync(GroupId, telegramId);
+        }
+        catch (SessionAccessDeniedException)
+        {
+            Navigation.NavigateTo("/access-denied");
+        }
+        catch (Exception ex)
+        {
+            errorMessage = ex.Message;
+        }
+        finally
+        {
+            promotingSessionId = null;
+        }
+    }
+
+    private static bool CanPromote(WebSession session) =>
+        session.WaitlistedPlayerCount > 0 &&
+        (!session.MaxPlayers.HasValue || session.ActivePlayerCount < session.MaxPlayers.Value);
+
+    private static string FormatSeats(WebSession session)
+    {
+        var seats = session.MaxPlayers.HasValue
+            ? $"{session.ActivePlayerCount}/{session.MaxPlayers.Value}"
+            : session.ActivePlayerCount.ToString(System.Globalization.CultureInfo.InvariantCulture);
+
+        return session.WaitlistedPlayerCount > 0
+            ? $"{seats} · ожидание {session.WaitlistedPlayerCount}"
+            : seats;
+    }
+
     private string GetStatusClass(string status) => status switch
     {
         SessionStatus.Confirmed => "status-success",

src/GmRelay.Web/Services/AuthorizedSessionService.cs

@@ -26,7 +26,7 @@ public sealed class AuthorizedSessionService(ISessionStore sessionStore)
         return await GroupBelongsToGmAsync(session.GroupId, gmId) ? session : null;
     }
 
-    public async Task UpdateSessionForGmAsync(Guid sessionId, long gmId, string title, DateTime scheduledAt, string joinLink)
+    public async Task UpdateSessionForGmAsync(Guid sessionId, long gmId, string title, DateTime scheduledAt, string joinLink, int? maxPlayers)
     {
         var session = await GetSessionForGmAsync(sessionId, gmId);
         if (session is null)
@@ -34,7 +34,18 @@ public sealed class AuthorizedSessionService(ISessionStore sessionStore)
             throw new SessionAccessDeniedException(sessionId, gmId);
         }
 
-        await sessionStore.UpdateSessionAsync(sessionId, session.GroupId, title, scheduledAt, joinLink);
+        await sessionStore.UpdateSessionAsync(sessionId, session.GroupId, title, scheduledAt, joinLink, maxPlayers);
+    }
+
+    public async Task PromoteWaitlistedPlayerForGmAsync(Guid sessionId, long gmId)
+    {
+        var session = await GetSessionForGmAsync(sessionId, gmId);
+        if (session is null)
+        {
+            throw new SessionAccessDeniedException(sessionId, gmId);
+        }
+
+        await sessionStore.PromoteWaitlistedPlayerAsync(sessionId, session.GroupId);
     }
 
     private async Task<bool> GroupBelongsToGmAsync(Guid groupId, long gmId)

src/GmRelay.Web/Services/ISessionStore.cs

@@ -6,5 +6,6 @@ public interface ISessionStore
     Task<WebGameGroup?> GetGroupAsync(Guid groupId);
     Task<List<WebSession>> GetUpcomingSessionsAsync(Guid groupId);
     Task<WebSession?> GetSessionAsync(Guid sessionId);
-    Task UpdateSessionAsync(Guid sessionId, Guid groupId, string title, DateTime scheduledAt, string joinLink);
+    Task UpdateSessionAsync(Guid sessionId, Guid groupId, string title, DateTime scheduledAt, string joinLink, int? maxPlayers);
+    Task PromoteWaitlistedPlayerAsync(Guid sessionId, Guid groupId);
 }

src/GmRelay.Web/Services/SessionService.cs

@@ -7,7 +7,21 @@ using Telegram.Bot;
 namespace GmRelay.Web.Services;
 
 public sealed record WebGameGroup(Guid Id, long TelegramChatId, string Name, long GmTelegramId);
-public sealed record WebSession(Guid Id, Guid GroupId, string Title, DateTime ScheduledAt, string Status, string JoinLink, Guid BatchId, int? BatchMessageId, long TelegramChatId);
+public sealed record WebSession(
+    Guid Id,
+    Guid GroupId,
+    string Title,
+    DateTime ScheduledAt,
+    string Status,
+    string JoinLink,
+    Guid BatchId,
+    int? BatchMessageId,
+    long TelegramChatId,
+    int? MaxPlayers,
+    int ActivePlayerCount,
+    int WaitlistedPlayerCount);
+
+internal sealed record WebPromotedParticipantDto(Guid ParticipantRowId, string DisplayName);
 
 public sealed class SessionService(
     NpgsqlDataSource dataSource,
@@ -36,12 +50,34 @@ public sealed class SessionService(
         return (await conn.QueryAsync<WebSession>(
             @"SELECT s.id, s.group_id AS GroupId, s.title, s.scheduled_at AS ScheduledAt, s.status, s.join_link AS JoinLink,
                      s.batch_id AS BatchId, s.batch_message_id AS BatchMessageId,
-                     g.telegram_chat_id AS TelegramChatId
+                     g.telegram_chat_id AS TelegramChatId,
+                     s.max_players AS MaxPlayers,
+                     COALESCE(active_counts.count, 0)::int AS ActivePlayerCount,
+                     COALESCE(waitlist_counts.count, 0)::int AS WaitlistedPlayerCount
               FROM sessions s
               JOIN game_groups g ON g.id = s.group_id
+              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 s.group_id = @GroupId AND s.scheduled_at > now() - interval '4 hours'
               ORDER BY s.scheduled_at",
-            new { GroupId = groupId })).ToList();
+            new
+            {
+                GroupId = groupId,
+                Active = ParticipantRegistrationStatus.Active,
+                Waitlisted = ParticipantRegistrationStatus.Waitlisted
+            })).ToList();
     }
 
     public async Task<WebSession?> GetSessionAsync(Guid sessionId)
@@ -50,14 +86,36 @@ public sealed class SessionService(
         return await conn.QuerySingleOrDefaultAsync<WebSession>(
             @"SELECT s.id, s.group_id AS GroupId, s.title, s.scheduled_at AS ScheduledAt, s.status, s.join_link AS JoinLink,
                      s.batch_id AS BatchId, s.batch_message_id AS BatchMessageId,
-                     g.telegram_chat_id AS TelegramChatId
+                     g.telegram_chat_id AS TelegramChatId,
+                     s.max_players AS MaxPlayers,
+                     COALESCE(active_counts.count, 0)::int AS ActivePlayerCount,
+                     COALESCE(waitlist_counts.count, 0)::int AS WaitlistedPlayerCount
               FROM sessions s
               JOIN game_groups g ON g.id = s.group_id
+              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 s.id = @SessionId",
-            new { SessionId = sessionId });
+            new
+            {
+                SessionId = sessionId,
+                Active = ParticipantRegistrationStatus.Active,
+                Waitlisted = ParticipantRegistrationStatus.Waitlisted
+            });
     }
 
-    public async Task UpdateSessionAsync(Guid sessionId, Guid groupId, string title, DateTime scheduledAt, string joinLink)
+    public async Task UpdateSessionAsync(Guid sessionId, Guid groupId, string title, DateTime scheduledAt, string joinLink, int? maxPlayers)
     {
         await using var conn = await dataSource.OpenConnectionAsync();
         await using var transaction = await conn.BeginTransactionAsync();
@@ -65,7 +123,10 @@ public sealed class SessionService(
         var oldSession = await conn.QuerySingleOrDefaultAsync<WebSession>(
             @"SELECT s.id, s.group_id AS GroupId, s.title, s.scheduled_at AS ScheduledAt, s.status, s.join_link AS JoinLink,
                      s.batch_id AS BatchId, s.batch_message_id AS BatchMessageId,
-                     g.telegram_chat_id AS TelegramChatId
+                     g.telegram_chat_id AS TelegramChatId,
+                     s.max_players AS MaxPlayers,
+                     0 AS ActivePlayerCount,
+                     0 AS WaitlistedPlayerCount
               FROM sessions s
               JOIN game_groups g ON g.id = s.group_id
               WHERE s.id = @Id AND s.group_id = @GroupId",
@@ -82,9 +143,18 @@ public sealed class SessionService(
               SET title = @Title,
                   scheduled_at = @ScheduledAt,
                   join_link = @JoinLink,
+                  max_players = @MaxPlayers,
                   updated_at = now()
               WHERE id = @Id AND group_id = @GroupId",
-            new { Id = sessionId, GroupId = groupId, Title = title, ScheduledAt = scheduledAt, JoinLink = joinLink },
+            new
+            {
+                Id = sessionId,
+                GroupId = groupId,
+                Title = title,
+                ScheduledAt = scheduledAt,
+                JoinLink = joinLink,
+                MaxPlayers = maxPlayers
+            },
             transaction);
 
         if (updatedRows == 0)
@@ -102,7 +172,9 @@ public sealed class SessionService(
         var timeChanged = oldSession.ScheduledAt != scheduledAt;
         var notification = $"🔄 <b>Мастер обновил игру!</b>\n\n" +
                            $"📌 <b>{System.Net.WebUtility.HtmlEncode(title)}</b>\n" +
-                           $"📅 Время: <b>{scheduledAt.FormatMoscow()}</b> (МСК)" + (timeChanged ? " (изменено)" : "");
+                           $"📅 Время: <b>{scheduledAt.FormatMoscow()}</b> (МСК)" + (timeChanged ? " (изменено)" : "") +
+                           "\n" +
+                           $"👥 Мест: <b>{(maxPlayers.HasValue ? maxPlayers.Value.ToString(System.Globalization.CultureInfo.InvariantCulture) : "без лимита")}</b>";
 
         await bot.SendMessage(oldSession.TelegramChatId, notification, parseMode: Telegram.Bot.Types.Enums.ParseMode.Html);
 
@@ -112,6 +184,104 @@ public sealed class SessionService(
         }
     }
 
+    public async Task PromoteWaitlistedPlayerAsync(Guid sessionId, Guid groupId)
+    {
+        await using var conn = await dataSource.OpenConnectionAsync();
+        await using var transaction = await conn.BeginTransactionAsync();
+
+        var session = await conn.QuerySingleOrDefaultAsync<WebSession>(
+            @"SELECT s.id, s.group_id AS GroupId, s.title, s.scheduled_at AS ScheduledAt, s.status, s.join_link AS JoinLink,
+                     s.batch_id AS BatchId, s.batch_message_id AS BatchMessageId,
+                     g.telegram_chat_id AS TelegramChatId,
+                     s.max_players AS MaxPlayers,
+                     0 AS ActivePlayerCount,
+                     0 AS WaitlistedPlayerCount
+              FROM sessions s
+              JOIN game_groups g ON g.id = s.group_id
+              WHERE s.id = @SessionId AND s.group_id = @GroupId
+              FOR UPDATE",
+            new { SessionId = sessionId, GroupId = groupId },
+            transaction);
+
+        if (session is null)
+        {
+            throw new SessionAccessDeniedException(sessionId, 0);
+        }
+
+        var activeParticipants = 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 waitlistedParticipants = await conn.ExecuteScalarAsync<int>(
+            """
+            SELECT COUNT(*)
+            FROM session_participants
+            WHERE session_id = @SessionId
+              AND is_gm = false
+              AND registration_status = @Waitlisted
+            """,
+            new { SessionId = sessionId, Waitlisted = ParticipantRegistrationStatus.Waitlisted },
+            transaction);
+
+        if (!SessionCapacityRules.CanPromoteWaitlistedPlayer(session.MaxPlayers, activeParticipants, waitlistedParticipants))
+        {
+            throw new InvalidOperationException(waitlistedParticipants == 0
+                ? "Лист ожидания пуст."
+                : "Нет свободных мест для повышения игрока.");
+        }
+
+        var promoted = await conn.QuerySingleAsync<WebPromotedParticipantDto>(
+            """
+            SELECT sp.id AS ParticipantRowId,
+                   p.display_name AS DisplayName
+            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 = @Waitlisted
+            ORDER BY sp.created_at ASC, sp.id ASC
+            LIMIT 1
+            FOR UPDATE OF sp
+            """,
+            new { SessionId = sessionId, Waitlisted = ParticipantRegistrationStatus.Waitlisted },
+            transaction);
+
+        await conn.ExecuteAsync(
+            """
+            UPDATE session_participants
+            SET registration_status = @Active,
+                rsvp_status = @Pending,
+                responded_at = NULL
+            WHERE id = @ParticipantRowId
+            """,
+            new
+            {
+                promoted.ParticipantRowId,
+                Active = ParticipantRegistrationStatus.Active,
+                Pending = RsvpStatus.Pending
+            },
+            transaction);
+
+        await transaction.CommitAsync();
+
+        await bot.SendMessage(
+            session.TelegramChatId,
+            $"⬆️ <b>{System.Net.WebUtility.HtmlEncode(promoted.DisplayName)}</b> переведен(а) из листа ожидания в основной состав «{System.Net.WebUtility.HtmlEncode(session.Title)}».",
+            parseMode: Telegram.Bot.Types.Enums.ParseMode.Html);
+
+        if (session.BatchMessageId.HasValue)
+        {
+            await TryUpdateBatchMessageAsync(session.BatchId, session.TelegramChatId, session.BatchMessageId.Value, session.Title);
+        }
+    }
+
     private async Task TryUpdateBatchMessageAsync(Guid batchId, long chatId, int messageId, string title)
     {
         try
@@ -119,16 +289,19 @@ public sealed class SessionService(
             await using var conn = await dataSource.OpenConnectionAsync();
 
             var sessions = (await conn.QueryAsync<SessionBatchDto>(
-                "SELECT id AS SessionId, scheduled_at AS ScheduledAt, status AS Status FROM sessions WHERE batch_id = @BatchId ORDER BY scheduled_at",
+                "SELECT id AS SessionId, scheduled_at AS ScheduledAt, status AS Status, max_players AS MaxPlayers FROM sessions WHERE batch_id = @BatchId ORDER BY scheduled_at",
                 new { BatchId = batchId })).ToList();
 
             var participants = (await conn.QueryAsync<ParticipantBatchDto>(
-                @"SELECT sp.session_id AS SessionId, p.display_name AS DisplayName, p.telegram_username AS TelegramUsername
+                @"SELECT sp.session_id AS SessionId,
+                         p.display_name AS DisplayName,
+                         p.telegram_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.responded_at ASC, p.created_at ASC",
+                  ORDER BY sp.registration_status ASC, sp.created_at ASC, sp.responded_at ASC, p.created_at ASC",
                 new { BatchId = batchId })).ToList();
 
             var renderResult = SessionBatchRenderer.Render(title, sessions, participants);

src/GmRelay.Web/wwwroot/app.css

@@ -1,5 +1,5 @@
 /* ============================================
-   GM-Relay Design System v1.1.0
+   GM-Relay Design System v1.2.0
    Dark RPG Dashboard Theme
    ============================================ */
 
@@ -821,4 +821,4 @@ input[type="datetime-local"]::-webkit-calendar-picker-indicator {
     .glass-card {
         padding: 1rem;
     }
-}
+}