KHDP SSH Gateway

Agent guides (LLM CLI tools):
  - GET /AGENTS.md      English
  - GET /AGENTS_KO.md   Korean
  - GET /AGENTS.yaml    progressive-disclosure index (YAML)
  - GET /AGENTS/SKILL.md  same index as SKILL.md

API docs & schema:
  - GET /user/docs           Swagger UI
  - GET /user/openapi.json   OpenAPI 3.1 (user API)

My dashboard (browser, your PAT):
  - GET /user/dashboard