- Fixed MD040 errors in Chapter 14 (added language identifiers to 170 code blocks)
- Fixed MD025 error in Chapter 15 (changed H1 to H3/H4 in example section)
- Added RELEASE_REVIEW_REPORT.md documenting final audit
- Created fix_md040.py automation script for future use
All critical and high-priority linting issues resolved.
Handbook is now ready for v1.0 Gold Master release.
