fix: RANK_INVALID 落地 + 空门槛库不判安全（改判边缘+V1）+ 批量坏文件跳过 + 教授补一作/通讯独立门槛

scripts/service/threshold_service.py

@@ -6,12 +6,11 @@ import json
 from typing import Any, Optional
 
 from db.connection import get_conn, init_db
+from db.seed_data import KNOWN_RANKS as _KNOWN_RANKS
 from service.verify_service import _METRIC_ALIASES, _snake, norm_metrics
 from util.logging_config import get_skill_logger
 from util.timeutil import now_unix
 
-_KNOWN_RANKS = ("副教授", "教授")
-
 
 def _log():
     try: