release-dispatch

Single front door for releases. Parses a subcommand — gates, cut, notes, or cleanup — and routes to the right release engine: release-pr-gates (verify CI green, then cut a tag/release or open a release PR), release (semver bump + plain-English patch notes), or release-cleanup (prune merged branches and stale worktrees). Backs the /release command. Use when asked to release, cut a tag, open a release PR, wait for CI to go green, generate patch notes, or clean up branches after a deploy, and the action must be picked from an argument like "gates", "cut", "notes", or "cleanup".