Misionary MCP

Endpoints:
  POST/GET/DELETE  /mcp   — Streamable HTTP
  GET              /.well-known/oauth-protected-resource
  GET              /.well-known/oauth-authorization-server
  GET              /authorize + POST /token — OAuth (ChatGPT, solo lectura)
  GET              /health

Auth: Authorization: Bearer <api key de MCP_API_KEYS o access token OAuth>
Escrituras: apagadas salvo MCP_WRITES_ENABLED=true