Replace blocklist-based git mutation detection with fail-closed allowlist
semantics: any git command not matching the readonly set is forbidden.
Catches checkout HEAD --, checkout ., git switch variants, and uncommon
stash subcommands that bypassed the old regex.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
Add reviewer_worktree proofs that block stash/reset/checkout -- cleanup of
unrelated local files, require scratch worktree reporting when the main tree
is dirty outside PR scope, and integrate the gate into final report grading
and Controller Handoff review fields.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
sysadmin
