feat: add session capacity waitlist

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();