fix(ci): 修正測試與 Sprint 5.2 部署腳本

tests/test_auto_repair_service.py:
  - 更新 3個測試符合 2026-04-07 統帥指令移除門檻
  - APPROVED Playbook 直接通過 (低相似度/低品質/高風險均通過)

tests/test_phase22_nemotron_collab.py:
  - 更新 log key: nemotron_collaboration_failed → exhausted

ops/monitoring/docker-compose.exporters.yaml:
  - 修正 postgres DSN: awoooi:awoooi_prod_2026@localhost:5432/awoooi_prod

Sprint 5.2 新增腳本:
  - scripts/sprint51_e2e_validation.py: L7 E2E 驗收腳本 (T1-T5)
  - scripts/ops/deploy-docker-health-monitor.sh: Plan A 一鍵部署腳本

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

ops/monitoring/docker-compose.exporters.yaml

@@ -26,7 +26,8 @@ services:
       - "9187:9187"
     environment:
       # 連線字串 (使用環境變數注入密碼)
-      DATA_SOURCE_NAME: "postgresql://postgres:${POSTGRES_PASSWORD:-awoooi}@localhost:5432/awoooi?sslmode=disable"
+      # 2026-04-08 Claude Sonnet 4.6: 修正用戶名/資料庫名 (awoooi user, awoooi_prod db)
+      DATA_SOURCE_NAME: "postgresql://awoooi:${POSTGRES_PASSWORD:-awoooi_prod_2026}@localhost:5432/awoooi_prod?sslmode=disable"
       # 自訂查詢配置
       PG_EXPORTER_EXTEND_QUERY_PATH: "/etc/postgres_exporter/queries.yaml"
       # 日誌等級