fix: resolve session edit crashes and rendering mode bugs

src/GmRelay.Web/Services/SessionService.cs

@@ -53,23 +53,23 @@ public sealed class SessionService(
         await using var conn = await dataSource.OpenConnectionAsync();
         await using var transaction = await conn.BeginTransactionAsync();
 
-        // 1. Update Session
+        // 1. Fetch current session with all required columns for WebSession record
         var oldSession = await conn.QuerySingleAsync<WebSession>(
-            "SELECT title, scheduled_at AS ScheduledAt, join_link AS JoinLink, batch_id AS BatchId, batch_message_id AS BatchMessageId FROM sessions WHERE id = @Id",
+            @"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
+              FROM sessions s
+              JOIN game_groups g ON g.id = s.group_id
+              WHERE s.id = @Id",
             new { Id = sessionId }, transaction);
 
+        // 2. Update Session
         await conn.ExecuteAsync(
             @"UPDATE sessions SET title = @Title, scheduled_at = @ScheduledAt, join_link = @JoinLink, updated_at = now()
               WHERE id = @Id",
             new { Id = sessionId, Title = title, ScheduledAt = scheduledAt, JoinLink = joinLink },
             transaction);
 
-        // 2. Fetch context for notification
-        var group = await conn.QuerySingleAsync<WebGameGroup>(
-            @"SELECT telegram_chat_id AS TelegramChatId FROM game_groups g 
-              JOIN sessions s ON s.group_id = g.id WHERE s.id = @Id",
-            new { Id = sessionId }, transaction);
-
         // 3. Update all sessions in the same batch with new title (optional, usually batch shares title)
         await conn.ExecuteAsync(
             "UPDATE sessions SET title = @Title WHERE batch_id = @BatchId",
@@ -84,12 +84,12 @@ public sealed class SessionService(
                            $"📌 <b>{System.Net.WebUtility.HtmlEncode(title)}</b>\n" +
                            $"📅 Время: <b>{scheduledAt.FormatMoscow()}</b> (МСК)" + (timeChanged ? " (изменено)" : "");
 
-        await bot.SendMessage(group.TelegramChatId, notification, parseMode: Telegram.Bot.Types.Enums.ParseMode.Html);
+        await bot.SendMessage(oldSession.TelegramChatId, notification, parseMode: Telegram.Bot.Types.Enums.ParseMode.Html);
 
         // 5. Update Original Batch Message
         if (oldSession.BatchMessageId.HasValue)
         {
-            await TryUpdateBatchMessageAsync(oldSession.BatchId, group.TelegramChatId, oldSession.BatchMessageId.Value, title);
+            await TryUpdateBatchMessageAsync(oldSession.BatchId, oldSession.TelegramChatId, oldSession.BatchMessageId.Value, title);
         }
     }