feat: add session capacity waitlist

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();