Skill 04 v1.5: - 新增 Phase 15 三層觀測架構章節 - Deep Linking URL 格式說明 - Trace Context 傳遞架構圖 Skill 05 v1.3: - 新增 Phase 15 觀測性測試章節 - 三系統健康檢查腳本 - Trace Context 驗證測試 參考: - project_phase15_langfuse.md (Phase 15 完整記錄) - project_phase17_tech_debt.md (技術債規劃) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>