feat(docker): add async port change and docker compose reload for services

- Introduce async `change_port` to update service port and reload docker compose
- Add `run_docker_command` for running docker compose commands asynchronously
- Implement `_get_random_port` utility for selecting available ports
- Refactor service discovery and port change logic to use new async methods
- Update proxy and manager logic to support new port change workflow

app/main.py

@@ -11,7 +11,7 @@ from core.config import settings
 from core.mongodb import close_mongodb, init_mongodb
 from core.redis import close_redis, init_redis
 from core.security import hash_password
-from integrations.docker import get_all_services
+from integrations.docker import get_all_services_in_dir
 from repositories.auth import ensure_auth_indexes, ensure_single_account
 from repositories.proxy import ensure_proxy_indexes
 
@@ -28,7 +28,7 @@ async def lifespan(_: FastAPI):
     await ensure_proxy_indexes()
 
     home_dir = str(Path.home())
-    app.state.services = get_all_services(home_dir) or []
+    app.state.services = get_all_services_in_dir(home_dir) or []
     if not app.state.services:
         warning = (
                 "\n" + "!" * 60 + "\n"