根本原因: - 41 個殭屍 Runner 進程互相衝突 - _diag/pages 目錄沒有自動清理 解決方案: - 所有 Workflow Job 第一步清理 _diag/pages - 覆蓋所有 self-hosted runner jobs 影響範圍: - runner-healthcheck.yml (2 jobs) - daily-e2e-health.yaml (1 job) - nightly-llm.yaml (1 job) - ci.yaml (9 jobs) - cd.yaml (已有) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>