add sandbox runtime control endpoints

usecase/interface.py

@@ -52,12 +52,16 @@ class SandboxRuntime(Protocol):
         *,
         session_id: UUID,
         chat_id: UUID,
+        agent_id: str,
+        volume_host_path: str,
         created_at: datetime,
         expires_at: datetime,
     ) -> SandboxSession: ...
 
     def stop(self, container_id: str) -> None: ...
 
+    def delete(self, container_id: str) -> None: ...
+
 
 class Clock(Protocol):
     def now(self) -> datetime: ...