Fitur notifikasi dan foreground

Add:
- types/type-notification-category.ts

Fix:
- app/(application)/(user)/notifications/index.tsx
- app/(application)/(user)/test-notifications.tsx
- app/(application)/admin/notification/index.tsx
- components/Notification/NotificationInitializer.tsx
- hooks/use-notification-store.tsx
- service/api-notifications.ts
- utils/formatChatTime.ts

### No Issue

components/Notification/NotificationInitializer.tsx

@@ -101,7 +101,7 @@ export default function NotificationInitializer() {
     }
 
     console.log("📥 Menambahkan ke store:", { title, body, safeData });
-    addNotification({ title, body, data: safeData, type: "notification" });
+    addNotification({ title, body, data: safeData, type: "announcement" });
     console.log("✅ Notifikasi ditambahkan ke state");
   };