65a5220e16
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CD Pipeline / build-and-deploy (push) Failing after 3m41s
C2: flywheel_stats_service 加 type4_count query → API 回傳
flywheel-diagram.tsx hasType4 改由 type4Count prop 驅動（非 false）
flywheel-kpi-card.tsx 傳入 type4Count={flowData?.type4_count}
C3: WebSocket onclose 加指數退避重連 (1s→2s→4s→最大30s)
cancelled 旗標確保 unmount 後不重連
wsRetryTimer 加入 cleanup
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>