{"service":"sayou-tools","version":"2.0.0","endpoints":{"GET /health":"Health check","GET /saju/calc":"Calculate saju chart","POST /saju/calc":"Calculate saju chart (JSON)","GET /skills":"List skills","GET /skills/:name":"Get skill content","GET /post":"Threads posting form (auth required)","POST /threads/post":"Post to Threads (auth required)","POST /threads/thread":"Post a multi-post thread (auth required)","POST /threads/refresh":"Refresh tokens (auth required)"}}