# Chairman v4.1 Analysis Hardening

Install:
1. Backup current analysis.php.
2. Copy analysis_chairman_v4_1_integrated.php to WinRacing root.
3. Open:
   - Chairman/ui/analysis_integration_check.php
   - Chairman/api/api_analysis_health.php
   - analysis_chairman_v4_1_integrated.php?wr_chairman_payload=1&race_date=2026-07-08
4. If OK, rename to analysis.php.

v4.1 improvements:
- Uses ChairmanSafeLoader.
- Front-end retry once.
- 8-second timeout.
- Any Chairman error stays inside Chairman panel only.
- Original Matrix / Strategy / Live Result functions remain untouched.
