# WinRacing V51 Supreme Decision Engine 51.0.0

1. Backup the current `winRacing` folder.
2. Copy the complete `winRacing` folder from this package over the existing code folder.
3. Do not copy any database files into the code folder.
4. No SQL migration is required. V51 reads the existing V50 tables only.
5. Build V50 data for the selected race date first, then open V51.

## Test URLs
- `/winRacing/analysis_chairman_v51_supreme.php`
- `/winRacing/wr_chairman_supreme_decision_ai_v51_0.php`
- `/winRacing/Chairman/api/api_supreme_v51.php?action=latest&race_date=YYYY-MM-DD`

## Runtime snapshot
`action=build` writes a JSON snapshot under `runtime/cache/v51/`. It does not change MySQL schema or V50 records.