WinRacing V62.0 Installation

1. Copy the entire winRacing folder over the existing winRacing folder.
2. Keep the same folder structure.
3. Open UI:
   http://localhost/winRacing/analysis_chairman_v62_production_readiness.php?race_date=2026-07-08
4. Open API:
   http://localhost/winRacing/Chairman/api/api_production_readiness_v62.php?action=latest&race_date=2026-07-08

Expected minimum result:
- UI loads without Fatal error.
- API status = OK.
- engine = V62.
- live_weights_changed = false.
- database_schema_changed = false.
- source_decisions_changed = false.
- Production Gate is READY or READY_WITH_REVIEW; BLOCKED requires findings review.
