feat(ci): Phase O-5 Wave C.2 加入 monitoring coverage check step

- cd.yaml 新增 Monitoring Coverage Check step (generate_monitoring.py --check)
- continue-on-error: true — 不阻塞部署
- Telegram 通知加入 📊 Monitoring 覆蓋率狀態

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/cd.yaml

@@ -275,6 +275,15 @@ jobs:
             --json | tee /tmp/alert_chain_result.json
           echo "alert_chain_status=pass" >> $GITHUB_OUTPUT
 
+      # Phase O-5 Wave C.2 2026-04-02 ogt: 監控覆蓋率驗證 (generate_monitoring.py --check)
+      # continue-on-error: true — 覆蓋率不足不阻塞部署，但反映在 TG 通知
+      - name: Monitoring Coverage Check
+        id: monitoring_coverage
+        continue-on-error: true
+        run: |
+          pip install requests --quiet
+          python3 scripts/generate_monitoring.py --check && echo "coverage_status=pass" >> $GITHUB_OUTPUT || echo "coverage_status=fail" >> $GITHUB_OUTPUT
+
       # [首席架構師] 新增 Playwright E2E Smoke Test 步驟 v1.0.0 2026-04-01 (台北時間)
       # continue-on-error: true — smoke 失敗不阻塞部署，但結果會反映在 TG 通知
       - name: E2E Smoke Test
@@ -295,7 +304,8 @@ jobs:
         env:
           SMOKE_RESULT: ${{ steps.smoke.outcome == 'success' && '✅' || '⚠️' }}
           ALERT_CHAIN_RESULT: ${{ steps.alert_chain_smoke.outcome == 'success' && '✅' || '⚠️' }}
-          TG_MSG: "✅ <b>AWOOOI 部署完成</b>\n├ 📝 ${{ steps.commit.outputs.message }}\n├ 🔖 <code>${{ steps.commit.outputs.short_sha }}</code>\n├ ⏱️ 耗時: ${MINUTES}m ${SECONDS}s\n├ 📦 API: ✅ Web: ✅\n├ 🩺 Health: ✅\n├ 🔗 Alert Chain: ${ALERT_CHAIN_RESULT}\n└ 🎭 Smoke: ${SMOKE_RESULT}"
+          MONITORING_RESULT: ${{ steps.monitoring_coverage.outcome == 'success' && '✅' || '⚠️' }}
+          TG_MSG: "✅ <b>AWOOOI 部署完成</b>\n├ 📝 ${{ steps.commit.outputs.message }}\n├ 🔖 <code>${{ steps.commit.outputs.short_sha }}</code>\n├ ⏱️ 耗時: ${MINUTES}m ${SECONDS}s\n├ 📦 API: ✅ Web: ✅\n├ 🩺 Health: ✅\n├ 🔗 Alert Chain: ${ALERT_CHAIN_RESULT}\n├ 📊 Monitoring: ${MONITORING_RESULT}\n└ 🎭 Smoke: ${SMOKE_RESULT}"
         run: |
           END_TIME=$(date +%s)
           DURATION=$((END_TIME - ${{ steps.commit.outputs.start_time }}))