fix(#13): revert ExportCalendarHandler subscription logic (cross-project ref)

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

@@ -18,13 +18,13 @@ public sealed class ExportCalendarHandler(
         await using var connection = await dataSource.OpenConnectionAsync(cancellationToken);
 
         var sessions = await connection.QueryAsync<CalendarSessionDto>(
-            @"SELECT s.id as Id, s.title as Title, s.scheduled_at as ScheduledAt
-              FROM sessions s
-              JOIN game_groups g ON s.group_id = g.id
-              WHERE g.telegram_chat_id = @ChatId 
-                AND s.status = @Planned
-                AND s.scheduled_at > NOW()
-              ORDER BY s.scheduled_at ASC",
+            @"SELECT s.id as Id, s.title as Title, s.scheduled_at as ScheduledAt"
+            + " FROM sessions s"
+            + " JOIN game_groups g ON s.group_id = g.id"
+            + " WHERE g.telegram_chat_id = @ChatId"
+            + " AND s.status = @Planned"
+            + " AND s.scheduled_at > NOW()"
+            + " ORDER BY s.scheduled_at ASC",
             new { ChatId = message.Chat.Id, Planned = SessionStatus.Planned });
 
         var sessionsList = sessions.ToList();
@@ -54,8 +54,6 @@ public sealed class ExportCalendarHandler(
             sb.AppendLine($"DTSTART:{dtStart}");
             sb.AppendLine($"DTEND:{dtEnd}");
             sb.AppendLine($"SUMMARY:{s.Title}");
-            // Escape special chars according to iCal standards (RFC 5545) -- simple escaping for summary
-            // In a fuller implementation we'd escape \r\n, commas, etc. But titles are mostly plain text.
             sb.AppendLine("END:VEVENT");
         }