{"service":"SkillBrain AI Content Engine","version":"0.3.0","endpoints":{"websocket":"GET /ws/generate/{course_id}?token=<ws_token>  (real-time streaming, HITL)","create_course":"POST /internal/courses  (create course session)","resume":"POST /internal/courses/{course_id}/resume  (approve | feedback)","feedback":"POST /internal/courses/{course_id}/feedback  (persist feedback row)","cancel":"POST /internal/courses/{course_id}/cancel  (cooperative cancel)","purge":"DELETE /internal/courses/{course_id}  (teardown all session state)","agents_listing":"GET /internal/agents  (ops-only read-only listing)","health":"GET /health  (liveness)","docs":"GET /docs"}}