diff --git a/apps/api/src/jobs/coverage_evaluator_job.py b/apps/api/src/jobs/coverage_evaluator_job.py
index 1a9a92881..74029a06b 100644
--- a/apps/api/src/jobs/coverage_evaluator_job.py
+++ b/apps/api/src/jobs/coverage_evaluator_job.py
@@ -166,6 +166,7 @@ async def _fetch_red_summary() -> dict[str, Any] | None:
     2026-04-19 P1.3: 加 total_scanned 供呼叫端算 red_ratio 做雙條件觸發.
     """
     from sqlalchemy import text as _sql
+
     from src.db.base import get_db_context
 
     try:
@@ -265,6 +266,7 @@ async def _llm_analyze_coverage_gaps(red_summary: dict[str, Any]) -> dict[str, A
     """
     try:
         import json as _j
+
         from src.services.llm_json_parser import parse_llm_json_response
         from src.services.openclaw import get_openclaw
 
@@ -296,8 +298,12 @@ async def _send_telegram_gaps(
     """推 coverage 缺口 Telegram 摘要 + 互動按鈕 (P0 修)."""
     try:
         import html
+
         from src.core.config import settings
-        from src.services.ai_advisory_helpers import build_ai_advisory_keyboard, is_snoozed
+        from src.services.ai_advisory_helpers import (
+            build_ai_advisory_keyboard,
+            is_snoozed,
+        )
         from src.services.telegram_gateway import get_telegram_gateway
 
         target_chat_id = settings.SRE_GROUP_CHAT_ID
@@ -359,6 +365,7 @@ async def _send_telegram_gaps(
 
 async def _get_latest_run_id() -> str | None:
     from sqlalchemy import text as _sql
+
     from src.db.base import get_db_context
 
     try:
@@ -389,6 +396,7 @@ async def _evaluate_monitoring(run_id: str) -> int:
         return 0
 
     from sqlalchemy import text as _sql
+
     from src.db.base import get_db_context
 
     try:
@@ -462,6 +470,7 @@ async def _evaluate_alerting(run_id: str) -> int:
       - 無任何 match → red
     """
     from sqlalchemy import text as _sql
+
     from src.db.base import get_db_context
 
     try:
@@ -509,6 +518,7 @@ async def _evaluate_km_coverage(run_id: str) -> int:
     不是 'body' (前次 UndefinedColumnError). 同時加 title 匹配擴大覆蓋.
     """
     from sqlalchemy import text as _sql
+
     from src.db.base import get_db_context
 
     try:
@@ -553,6 +563,7 @@ async def _evaluate_playbook_coverage(run_id: str) -> int:
     沒對應 playbook 但 type 合理 → yellow; 否則保持 unknown
     """
     from sqlalchemy import text as _sql
+
     from src.db.base import get_db_context
 
     try:
@@ -594,6 +605,7 @@ async def _evaluate_remediation_coverage(run_id: str) -> int:
     沒 target 匹配但 asset 是 k8s_workload/container → red (應有修復能力但沒)
     """
     from sqlalchemy import text as _sql
+
     from src.db.base import get_db_context
 
     try:
@@ -636,6 +648,7 @@ async def _evaluate_rule_matching_coverage(run_id: str) -> int:
     沒觸發 → yellow (可能沒問題也可能沒覆蓋,中性)
     """
     from sqlalchemy import text as _sql
+
     from src.db.base import get_db_context
 
     try:
@@ -683,6 +696,7 @@ async def _evaluate_rule_creation_coverage(run_id: str) -> int:
     未來 Hermes 建出 AI rule 後會變 green
     """
     from sqlalchemy import text as _sql
+
     from src.db.base import get_db_context
 
     try:
@@ -726,6 +740,7 @@ async def _evaluate_rule_creation_coverage(run_id: str) -> int:
 async def _log_aol(stats: dict[str, int], duration_ms: int, error: str | None) -> None:
     try:
         from sqlalchemy import text as _sql
+
         from src.db.base import get_db_context
 
         aol_status = "failed" if error else "success"
@@ -779,11 +794,13 @@ async def _auto_create_rules_for_uncovered_assets(run_id: str | None) -> int:
       - rule_name UNIQUE 鍵：CoverageAuto_{type}_{safe_key}
       - Redis 不可用時跳過冷卻檢查（不中斷主流程）
     """
-    from sqlalchemy import text as _sql
-    from src.db.base import get_db_context
     import json as _j
     import re
 
+    from sqlalchemy import text as _sql
+
+    from src.db.base import get_db_context
+
     if not run_id:
         return 0