v0.11.26 FCM bugs fixes

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "rosterchirp-backend",
-  "version": "0.11.25",
+  "version": "0.11.26",
   "description": "TeamChat backend server",
   "main": "src/index.js",
   "scripts": {

backend/src/index.js

@@ -233,17 +233,22 @@ io.on('connection', async (socket) => {
         for (const m of members) {
           if (m.user_id === userId) continue;
           const memberKey = `${schema}:${m.user_id}`;
-          if (!onlineUsers.has(memberKey)) {
-            sendPushToUser(schema, m.user_id, {
-              title: senderName,
-              body: (content || (imageUrl ? '📷 Image' : '')).slice(0, 100),
-              url: '/', groupId, badge: 1,
-            }).catch(() => {});
-          } else {
+          if (onlineUsers.has(memberKey)) {
+            // In-app notification for connected sockets
             for (const sid of onlineUsers.get(memberKey)) {
               io.to(sid).emit('notification:new', { type: 'private_message', groupId, fromUser: socket.user });
             }
           }
+          // Always send push — when the app is in the foreground FCM delivers
+          // silently (no system notification); when backgrounded or offline the
+          // service worker shows the system notification. This covers the common
+          // Android case where the socket appears online but is silently dead
+          // after the PWA was backgrounded (OS kills WebSocket before ping timeout).
+          sendPushToUser(schema, m.user_id, {
+            title: senderName,
+            body: (content || (imageUrl ? '📷 Image' : '')).slice(0, 100),
+            url: '/', groupId, badge: 1,
+          }).catch(() => {});
         }
       }