v0.11.28 FCM bug fixes

build.sh

@@ -13,7 +13,7 @@
 # ─────────────────────────────────────────────────────────────
 set -euo pipefail
 
-VERSION="${1:-0.11.27}"
+VERSION="${1:-0.11.28}"
 ACTION="${2:-}"
 REGISTRY="${REGISTRY:-}"
 IMAGE_NAME="rosterchirp"

frontend/public/sw.js

@@ -64,6 +64,7 @@ function showRosterChirpNotification(data) {
     data:    { url: data.url || '/' },
     tag:     data.groupId ? `rosterchirp-group-${data.groupId}` : 'rosterchirp-message',
     renotify: true,
+    vibrate:  [200, 100, 200],  // haptic pattern — also activates the OS sound channel
   });
 }