fix: calendar shows only user's own channels, not system blog channel

src/routes/calendar.js

@@ -96,7 +96,7 @@ router.get('/', async (req, res) => {
     } else {
       // Только каналы этого юзера (или системные)
       spParams.push(userId);
-      spWhere += ` AND (c.user_id = $${spParams.length} OR c.is_system = true)`;
+      spWhere += ` AND c.user_id = ${spParams.length}`;
     }
 
     const { rows: schedPosts } = await query(