Simpan notifikasi ke database

Add:
- prisma/migrations/20251218071503_add_type_on_db_notifikasi/
- src/app/api/mobile/notification/

Fix:
- modified:   prisma/schema.prisma
- modified:   src/app/api/mobile/auth/device-tokens/route.ts
- deleted:    src/app/api/mobile/notifications/route.ts
- modified:   x.sh

###No Issue

src/app/api/mobile/auth/device-tokens/route.ts

@@ -24,6 +24,9 @@ async function POST(request: NextRequest) {
       },
     });
 
+
+    console.log("✅ EX", existing);
+
     let deviceToken;
 
     if (existing) {