MRPd commands

Core CLI commands:

• mrpd serve — run a demo MRP provider (local HTTP server)
• mrpd validate — validate envelopes or run fixtures
• mrpd route — query registry and rank candidates
• mrpd run — end-to-end: DISCOVER → EXECUTE (demo capability)
• mrpd bridge — scaffold bridges for other ecosystems
• mrpd mrpify — generate MRP-compatible wrappers

See the task guides for step-by-step usage.