{"name":"OW Hero Backend API","version":"2.0.0","mode":"多模态RAG + Skill + LLM","endpoints":["GET /health","POST /api/chat","GET /api/heroes","GET /api/heroes/:id","GET /api/heroes/:id/story","GET /api/heroes/:id/skills","GET /api/chat/history/:sessionId","GET /api/skills","POST /api/skill/:skillName","GET /api/rag/status","POST /api/rag/search","POST /api/rag/index","POST /api/rag/test-embedding","POST /api/asr","POST /api/tts","POST /admin/update","GET /admin/update/:taskId"]}