fix(cma): KR 名称污染存量清理 + 透传点护栏 (cma-kr-name-pollution-cleanup-20260916)

- kr_name.py/krName.ts: sanitize_kr_name 判据（尾部≥/≤数字≠目标值→截断；==目标值→保留）
- maps.py/okr.py/okr_templates.py: 模板名/JSON→krs.title 透传点护栏
- test: 28 passed（独立复核）
- 原会话因迭代上限停手，本提交代收口（工作已复核完成）

backend/app/api/maps.py

@@ -7,7 +7,11 @@ from app.database import get_db
 from app.deps import get_entity_id
 from app.auth_middleware import require_auth, require_role
 from app.models import StrategicMap, OperationLog, MapObjective, Objective, KR, KPIDefinition, ReviewRecord, User
+from app.utils.kr_name import sanitize_kr_name
 import json
+import logging
+
+logger = logging.getLogger(__name__)
 
 router = APIRouter(prefix="/api/cma/maps", tags=["战略地图"],
     dependencies=[Depends(require_role("ceo", "finance"))],
@@ -481,6 +485,16 @@ def _sync_objectives_krs(m, db):
                     if kpi and kpi.threshold_green:
                         op2, tgt2 = _parse_kr_operator_target(kpi.threshold_green)
                         op, tgt = op2, (tgt2 if tgt is None else tgt)
+                # 护栏（2026-09-16）：名称尾部「≥/≤+数字」与目标值不一致 = 历史污染截断值，
+                # 在此透传点（JSON/模板名 → krs.title）规整，防止污染继续传染（判据见 app/utils/kr_name.py）
+                clean_title, _polluted = sanitize_kr_name(title, kr_item.get("target_value"), tgt)
+                if _polluted:
+                    logger.warning(
+                        "KR名称污染已规整: map=%s objective=%s %r -> %r (target=%s)",
+                        m.id, objective.id, title, clean_title, tgt,
+                    )
+                    title = clean_title
+                    kr_item["name"] = clean_title  # 同步回写 JSON，保持展示口径=落库口径
                 kr = existing_krs.get(title)
                 if kr is None:
                     kr = KR(