v0.12.25 FCM bug fixes

frontend/src/pages/Chat.jsx

@@ -132,12 +132,22 @@ export default function Chat() {
         // deliver. Passing serviceWorkerRegistration directly to getToken() is enough
         // for Firebase to return the existing valid token without needing a refresh.
         console.log('[Push] Requesting FCM token...');
-        const fcmToken = await getToken(firebaseMessaging, {
-          vapidKey,
-          serviceWorkerRegistration: reg,
-        });
+        let fcmToken;
+        try {
+          fcmToken = await getToken(firebaseMessaging, {
+            vapidKey,
+            serviceWorkerRegistration: reg,
+          });
+        } catch (tokenErr) {
+          const msg = tokenErr.message || 'getToken() threw an error';
+          console.warn('[Push] getToken() threw:', msg);
+          localStorage.setItem('rc_fcm_error', msg);
+          return;
+        }
         if (!fcmToken) {
-          console.warn('[Push] getToken() returned null — notification permission may not be granted at OS level, or VAPID key is wrong');
+          const msg = 'getToken() returned null — check VAPID key and OS notification permission';
+          console.warn('[Push]', msg);
+          localStorage.setItem('rc_fcm_error', msg);
           return;
         }
         console.log('[Push] FCM token obtained:', fcmToken.slice(0, 30) + '...');
@@ -147,6 +157,7 @@ export default function Chat() {
         const cachedToken = localStorage.getItem('rc_fcm_token');
         if (cachedToken === fcmToken) {
           console.log('[Push] Token unchanged — skipping subscribe');
+          localStorage.removeItem('rc_fcm_error');
           return;
         }
 
@@ -158,13 +169,17 @@ export default function Chat() {
         });
         if (!subRes.ok) {
           const err = await subRes.json().catch(() => ({}));
-          console.warn('[Push] Subscribe failed:', err.error || subRes.status);
+          const msg = `Subscribe failed: ${err.error || subRes.status}`;
+          console.warn('[Push]', msg);
+          localStorage.setItem('rc_fcm_error', msg);
         } else {
           localStorage.setItem('rc_fcm_token', fcmToken);
+          localStorage.removeItem('rc_fcm_error');
           console.log('[Push] FCM subscription registered successfully');
         }
       } catch (e) {
         console.warn('[Push] FCM subscription failed:', e.message);
+        localStorage.setItem('rc_fcm_error', e.message);
       }
     };