Mission Run Overview
Mission Run: Implement-Loop Commit & Move-Task Hardening
Close four #2533 follow-ups: fix move-task-from-a-worktree, harden the protected-branch commit fallback, and pay down the placement/commit maintainability debt.
After the #2533 partition-aware precondition fix shipped, four residual items remained: agents cannot run move-task from inside a lane worktree; a rare protected-branch configuration silently commits planning files to the wrong branch; and the commit/move-task code carries maintainability debt plus a duplicated commit path. This mission closes all four so the implement/review loop is reliable from any working directory and the placement logic has a single, well-tested authority.