rcsmd MCP

MCP endpoint : POST https://mphome.taild9ca3f.ts.net/mcp
Discovery    : https://mphome.taild9ca3f.ts.net/.well-known/oauth-protected-resource/mcp
Health       : https://mphome.taild9ca3f.ts.net/healthz

Phase 1: nur ping/echo, keine echten Tools.