v0.5.0

Added

• git-hygiene recipe + stop-git-hygiene-guard Stop hook — opt-in shared-repo discipline (G1–G7): no unrequested worktrees, push-don't-hoard, merge=delete-branch, backup≠applied (verify by real code), no reckless force/rebase on shared repos, bundle PRs for CI, session-end hygiene check. Prevents the failure where merged work looks lost (orphan worktrees / local-only commit hoarding / stale merged branches) and burns reconciliation time. Recipe body installs on all six tools; the Stop-hook reminder is Claude-only (ADR-034), non-blocking, self-gated on the recipe. Recipe count 11 → 12, hook templates 7 → 9 (the 0.3.0 stop-trajectory-log count was also un-synced). — ADR-037.