Ait

Fixed

• Adversarial reviewer now sees the code under review. Previously the
  reviewer ran in an empty cwd with workspace reads denied; its only view
  of the change was a per-tier truncated diff embedded in the brief,
  which routinely dropped whole files and produced non-actionable
  "can't read the implementation" findings.

  Root-cause fix: before launching the reviewer, AIT materializes the
  attempt's reviewed commit as a pinned read-only git worktree at
  .ait/reviewer-runs/<review_id>/src/ and writes the complete
  base..head diff to <run>/diff.patch. The reviewer can open ANY
  file at the reviewed commit, trace callers, and recompute the diff
  itself.

  The brief becomes small and stable — metadata + facts + test evidence

  • a pointer to the snapshot and the base/head refs — with no
    character budget left to tune. The snapshot is cleaned up on every
    exit path (success or failure).

Notes

• 962 tests passing.
• Two fixture builders updated to use real commit OIDs (synthetic
  '0'*40 / '1'*40 OIDs would have made the new snapshot materialization
  reject).
• See CHANGELOG for the full entry and code references.