Update notification service

AppImage/scripts/notification_channels.py

@@ -251,7 +251,7 @@ class TelegramChannel(NotificationChannel):
                 .replace('>', '>'))
 
 
-# ─── Gotify ──────────────────────────────────────────────────────
+# ─── Gotify ───────────────────────────────────────<EFBFBD><EFBFBD>──────────────
 
 class GotifyChannel(NotificationChannel):
     """Gotify push notification channel with priority mapping."""

AppImage/scripts/startup_grace.py

@@ -218,6 +218,11 @@ class _StartupGraceState:
         with self._lock:
             return self._startup_aggregated
     
+    def mark_startup_aggregated(self) -> None:
+        """Mark startup aggregation as completed without returning VMs."""
+        with self._lock:
+            self._startup_aggregated = True
+
 
 # ─── Module-level convenience functions ──────────────────────────────────────
 
@@ -264,6 +269,14 @@ def was_startup_aggregated() -> bool:
     """Check if startup aggregation has already been processed."""
     return _state.was_startup_aggregated()
 
+def mark_startup_aggregated() -> None:
+    """Mark startup aggregation as completed without processing VMs.
+    
+    Use this when skipping startup notification (e.g., service restart
+    instead of real system boot) to prevent future checks.
+    """
+    _state.mark_startup_aggregated()
+
 def is_real_system_boot() -> bool:
     """
     Check if this is a real system boot (not just a service restart).