v1.73.0

What's Changed

• fix(hooks): precompact stale REBASE_HEAD false-positive by @BaseInfinity in #330
• gc(#236): delete 15 stale review/plan artifacts (-460 LOC) by @BaseInfinity in #331
• release: v1.73.0 — precompact REBASE_HEAD fix + 15-file gc by @BaseInfinity in #332

Full Changelog: v1.72.0...v1.73.0