# Implement Category 3 Audit (Git-Based Modification Detection)

## Problem
Category 3 audit (status.py:698-702) is stubbed out with "future work". The framework cannot detect unauthorized modifications.

## Fix
Implement git-based modification checking:
1. Check git diff for uncommitted changes to files outside task folders
2. Check `git log --diff-filter=M --name-only` for recent modifications not associated with open tasks
3. Flag files modified when no task is in implement/doc_review phase
4. Report violations with file paths and suggested action

## Verification
- `status.py --audit` includes Category 3 findings
- Detects unauthorized modifications
- Separates false positives (framework files, config files)