releasing

Cut a release of chess-uci-mcp to PyPI and the MCP registry. Use when the user asks to release, publish, ship or tag a new version, or names a version and asks to get it out. Covers preconditions, the version bump across every file that repeats it, tagging, the GitHub release that triggers publishing, and post-release verification of PyPI, the MCP registry and Context7. Never invoke this on your own initiative - — a…