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/okr.py

@@ -11,6 +11,10 @@ from app.database import get_db
 from app.deps import get_entity_id
 from app.auth_middleware import require_role
 from app.models import Objective, ActionPlan, KR, ObjectiveKPI, KPIDefinition
+from app.utils.kr_name import sanitize_kr_name
+import logging
+
+logger = logging.getLogger(__name__)
 
 router = APIRouter(prefix="/api/cma/okr", tags=["OKR目标管理"],
     dependencies=[Depends(require_role("ceo", "finance", "it"))],
@@ -329,6 +333,14 @@ def sync_krs(objective_id: int, data: dict, db: Session = Depends(get_db),
             kpi_id = kpi.id if kpi else None
         operator, target_value = _inherit_kpi_direction(db, kpi_id, item.get("operator"), item.get("target_value"))
 
+        # 护栏（2026-09-16）：画布节点/接口传来的 KR 名若带历史污染尾巴（尾部「≥/≤+被截断的数字」）
+        # 在此规整，防污染经 krs.title 继续传染（判据见 app/utils/kr_name.py）
+        _tv = item.get("target_value")
+        title, _polluted = sanitize_kr_name(title, _tv if _tv is not None else target_value)
+        if _polluted:
+            logger.warning("KR名称污染已规整: objective=%s %r -> %r (target=%s)",
+                           objective_id, item.get("title") or item.get("name"), title, _tv)
+
         kr = None
         if item.get("id") and int(item["id"]) in existing:
             kr = existing[int(item["id"])]