# WinRacing Audit Fix Knife 2 — Header Safe V50.2

## 今刀處理
- UI-014：Cannot modify header information / Headers already sent
- Runtime warning / notice 改為寫入 log，不直接輸出
- 頁面最前啟動 Output Buffer
- API / AJAX / HTML Header Safe
- 加入 Header / Buffer Diagnostic

## 原則
- 只加不減
- 不修改 V44～V50 計分
- 不修改投注建議
- 不刪除舊檔
- 不執行 ALTER TABLE

## 測試 1
http://127.0.0.1/winracing/wr_chairman_header_safe_diagnostic_v50_2.php

應看到：
- Headers Sent = NO
- Output Buffer Level >= 1
- Schema Guard 正常
- ALTER Executed = NO

## 測試 2
http://127.0.0.1/winracing/wr_chairman_ultimate_decision_engine_v50_2_header_safe.php?race_date=2026-07-08

## 測試 3
http://127.0.0.1/winracing/analysis_chairman_v50_ultimate_header_safe_v50_2.php?review_date=2026-07-08&date=2026-07-08&race_id=86

## Runtime API
http://127.0.0.1/winracing/Chairman/api/api_runtime_health_v50_2.php
