update

.env.example

@@ -22,22 +22,31 @@ DB_USER=rosterchirp
 APP_TYPE=selfhost
 
 # ── RosterChirp-Host only (ignored in selfhost mode) ─────────────────────────────────
-# HOST_DOMAIN=rosterchirp.com
+# APP_DOMAIN=example.com
+# HOST_SLUG=chathost
 # HOST_ADMIN_KEY=change_me_host_admin_secret
 
 # ── Optional ──────────────────────────────────────────────────────────────────
 PORT=3000
 TZ=UTC
 
-# ── Firebase Cloud Messaging (FCM) — Android background push ──────────────────
+# ── Firebase Cloud Messaging (FCM) https://firebase.google.com/ — Android background push ──────────────────
 # Required for push notifications to work on Android when the app is backgrounded.
-# Get these from: Firebase Console → Project Settings → General → Your web app
+# -- Get these from: Firebase Console → Project Settings → General → Your web app
 # FIREBASE_API_KEY=
 # FIREBASE_PROJECT_ID=
 # FIREBASE_MESSAGING_SENDER_ID=
 # FIREBASE_APP_ID=
-# Get VAPID key from: Firebase Console → Project Settings → Cloud Messaging → Web Push certificates
+# -- Get VAPID key from: Firebase Console → Project Settings → Cloud Messaging → Web Push certificates
 # FIREBASE_VAPID_KEY=
-# Get service account JSON from: Firebase Console → Project Settings → Service accounts → Generate new private key
-# Paste the entire JSON content as a single-line string:
+# -- Get service account JSON from: Firebase Console → Project Settings → Service accounts → Generate new private key
+# -- Paste the entire JSON content as a single-line string (include curlybracket to curlybracket):
 # FIREBASE_SERVICE_ACCOUNT={"type":"service_account","project_id":"..."}
+
+# ── iOS (iPhone) background push ──────────────────
+# Required for push notifications to work on iOS when the app is backgrounded.
+# -- Get these from: https://vapidkeys.com/
+# -- The subject requires the "mailto:yourvalid@email.com" without quotes
+# VAPID_SUBJECT=
+# VAPID_PUBLIC=
+# FVAPID_PRIVATE=