{"message":"This URL is the FastAPI backend — the operator UI is the Textual TUI.","detail":"Run `python wpb-terminal.py` for API + terminal dashboard, or `python ui_textual_main.py` if the API is already up.","textual_ui":"python ui_textual_main.py","start_both":"python wpb-terminal.py  (API child process + Textual in the foreground)","api_alone":"python core_worker_main.py --dashboard  (API only; start ui_textual_main.py separately)","api_port":"DASHBOARD_PORT or PORT (default 8080)","healthz":"/healthz","openapi":"/docs"}