v0.8.7 pin bug fixes

backend/src/routes/push.js

@@ -70,11 +70,12 @@ router.post('/subscribe', authMiddleware, (req, res) => {
     return res.status(400).json({ error: 'Invalid subscription' });
   }
   const db = getDb();
-  db.prepare(`
-    INSERT INTO push_subscriptions (user_id, endpoint, p256dh, auth)
-    VALUES (?, ?, ?, ?)
-    ON CONFLICT(endpoint) DO UPDATE SET user_id = ?, p256dh = ?, auth = ?
-  `).run(req.user.id, endpoint, keys.p256dh, keys.auth, req.user.id, keys.p256dh, keys.auth);
+  // Use DELETE+INSERT to avoid relying on any specific UNIQUE constraint
+  // (existing DBs may have different schemas for this table)
+  const delStmt = db.prepare('DELETE FROM push_subscriptions WHERE endpoint = ?');
+  const insStmt = db.prepare('INSERT INTO push_subscriptions (user_id, endpoint, p256dh, auth) VALUES (?, ?, ?, ?)');
+  delStmt.run(endpoint);
+  insStmt.run(req.user.id, endpoint, keys.p256dh, keys.auth);
   res.json({ success: true });
 });