edt-mcp-ready-to-deploy

The final "definition of done" / ready-to-deploy checklist for EDT-MCP — the ordered gate to run when a piece of work is finished, before declaring it done or merging. Covers code hygiene, tests written, build+unit, README, live redeploy, golden, full e2e, protocol conformance, and a clean git tree. Use when wrapping up a change, verifying everything still works, or before a commit/merge.