ref #7: [feat] add cleanup task

adapter/di/container.py

@@ -15,7 +15,7 @@ from domain.user import User
 from repository.sandbox_session import InMemorySandboxSessionRepository
 from repository.user import InMemoryUserRepository
 from usecase.interface import Clock
-from usecase.sandbox import CreateSandbox
+from usecase.sandbox import CleanupExpiredSandboxes, CreateSandbox
 from usecase.user import GetUser
 
 
@@ -29,6 +29,7 @@ class AppRepositories:
 class AppUsecases:
     get_user: GetUser
     create_sandbox: CreateSandbox
+    cleanup_expired_sandboxes: CleanupExpiredSandboxes
 
 
 @dataclass(slots=True)
@@ -103,6 +104,12 @@ def build_container(
             logger=observability.logger,
             ttl=timedelta(seconds=app_config.sandbox.ttl_seconds),
         ),
+        cleanup_expired_sandboxes=CleanupExpiredSandboxes(
+            repository=sandbox_repository,
+            runtime=sandbox_runtime,
+            clock=clock,
+            logger=observability.logger,
+        ),
     )
 
     return AppContainer(