feat: add Docker container management functionality

- Implement DockerHandler to handle API requests for listing Docker containers.
- Create DockerService to interact with Docker API and retrieve container information.
- Add routes for Docker container management in the API.
- Introduce frontend API integration for Docker container listing.
- Enhance ProxyHostForm to allow quick selection of Docker containers.
- Update Docker-related tests to ensure functionality and error handling.
- Modify Docker Compose files to enable Docker socket access for local and remote environments.
- Add TypeScript configurations for improved build processes.

frontend/src/api/import.ts

@@ -11,7 +11,7 @@ export interface ImportPreview {
   session: ImportSession;
   preview: {
     hosts: Array<{ domain_names: string; [key: string]: unknown }>;
-    conflicts: Record<string, string>;
+    conflicts: string[];
     errors: string[];
   };
 }