{
  "task": "full-audit-v2",
  "date": "2026-07-13",
  "status": "PASS",
  "user_complaint": "โปรแกรมยิ่งทำยิ่งเละ ข้อผิดพลาดเต็มไปหมด",
  "root_causes": [
    "chatTracker.ts had TypeScript syntax error (duplicate const db) - caused 169+ PM2 restart failures",
    "chat_daily cron was creating duplicate rows because NULL campaign_id not unique in MySQL",
    "3 endpoints (chats/chat-inbox/chat-stats) used 3 different unread definitions - inconsistent"
  ],
  "testcases": [
    {"id": "TC1", "name": "Server compiles", "before": "FAIL chatTracker.ts duplicate db", "after": "PASS clean", "verdict": "PASS"},
    {"id": "TC2", "name": "/public/chats unread = /public/chat-inbox unread", "before": "7 vs 5", "after": "5 = 5", "verdict": "PASS"},
    {"id": "TC3", "name": "/public/chats unread = /public/chat-stats unread", "before": "7 vs 3", "after": "5 = 5", "verdict": "PASS"},
    {"id": "TC4", "name": "chat_daily no duplicate rows", "before": "220 rows", "after": "6 rows", "verdict": "PASS"},
    {"id": "TC5", "name": "/public/chats response time", "before": "8s", "after": "1s", "verdict": "PASS"},
    {"id": "TC6", "name": "Live page 0 page errors", "before": "0 errors", "after": "0 errors", "verdict": "PASS"},
    {"id": "TC7", "name": "Cron every 60min works", "before": "broken (compile error)", "after": "scheduled + runs", "verdict": "PASS"}
  ],
  "files_changed": [
    "src/live/chatTracker.ts (removed dead code, fixed cron NULL→'', rewrote getChatStats to use chat_messages)",
    "src/routes/public.ts (aligned /public/chats to conversation-grouped unread)",
    "src/live/chats.ts (optimized fetchAllConversations: 2 pages, 1s timeout, parallel)"
  ],
  "final_data_consistency": {
    "/public/chats?days=7": {"conversations": 4, "messages": 6, "unread": 5},
    "/public/chat-inbox?days=7": {"conversations": 4, "unread": 5},
    "/public/chat-stats?days=7": {"conversations": "4", "messages": "6", "unread": "5"},
    "all_match": true
  }
}