update-docs

Use this skill after any change to gateway/, docs-mcp/, or SDK source in a language repository source that shifts Tesseron's public surface — protocol messages, exported types, action/resource builder APIs, ActionContext methods, transports, gateway CLI flags, or React hooks — to sync docs/src/content/docs/ so the Starlight site matches the code. Triggers on "update the docs", "sync docs", "docs are stale after this…