refactor(intelligent-eval): 将 _get_raw 改为公开方法 get_including_deleted

- 消除 lifecycle.delete_eval 对私有方法的访问
- 明确该方法用于删除幂等性检查的用途
- 符合代码规范：避免跨模块访问私有接口

backend/agenteval/intelligent_eval/lifecycle.py

@@ -202,7 +202,7 @@ def cancel(session: Session, eval_id: str) -> IntelligentEval:
 def delete_eval(session: Session, eval_id: str) -> IntelligentEval:
     """逻辑删除：completed / cancelled / failed → deleted。幂等：已删除直接返回。"""
     repo = IntelligentEvalRepository(session)
-    ev = repo._get_raw(eval_id)
+    ev = repo.get_including_deleted(eval_id)
     if ev is None:
         raise IntelligentEvalNotFoundError(f"intelligent eval {eval_id} not found")
     if ev.status is IntelligentEvalStatus.DELETED:

backend/agenteval/intelligent_eval/repository.py

@@ -148,8 +148,8 @@ class IntelligentEvalRepository:
             return None
         return self._from_db(db)
 
-    def _get_raw(self, eval_id: str) -> Optional[IntelligentEval]:
-        """包含已删除评估的原样读取（仅供 delete 幂等检查使用）。"""
+    def get_including_deleted(self, eval_id: str) -> Optional[IntelligentEval]:
+        """包含已删除评估的原样读取（供 delete 幂等检查使用）。"""
         db = self.session.get(IntelligentEvalDB, eval_id)
         return self._from_db(db) if db else None