style: auto-format code with ruff (cron)

backend/ai_manager.py

@@ -283,7 +283,7 @@ class AIManager:
     def get_custom_model(self, model_id: str) -> CustomModel | None:
         """获取自定义模型"""
         with self._get_db() as conn:
-            row = conn.execute("SELECT * FROM custom_models WHERE id  = ?", (model_id, )).fetchone()
+            row = conn.execute("SELECT * FROM custom_models WHERE id  = ?", (model_id,)).fetchone()
 
             if not row:
                 return None
@@ -350,7 +350,8 @@ class AIManager:
         """获取训练样本"""
         with self._get_db() as conn:
             rows = conn.execute(
-                "SELECT * FROM training_samples WHERE model_id  = ? ORDER BY created_at", (model_id, )
+                "SELECT * FROM training_samples WHERE model_id  = ? ORDER BY created_at",
+                (model_id,),
             ).fetchall()
 
             return [self._row_to_training_sample(row) for row in rows]
@@ -712,7 +713,7 @@ class AIManager:
     def get_kg_rag(self, rag_id: str) -> KnowledgeGraphRAG | None:
         """获取知识图谱 RAG 配置"""
         with self._get_db() as conn:
-            row = conn.execute("SELECT * FROM kg_rag_configs WHERE id  = ?", (rag_id, )).fetchone()
+            row = conn.execute("SELECT * FROM kg_rag_configs WHERE id  = ?", (rag_id,)).fetchone()
 
             if not row:
                 return None
@@ -1122,7 +1123,7 @@ class AIManager:
         """获取预测模型"""
         with self._get_db() as conn:
             row = conn.execute(
-                "SELECT * FROM prediction_models WHERE id  = ?", (model_id, )
+                "SELECT * FROM prediction_models WHERE id  = ?", (model_id,)
             ).fetchone()
 
             if not row:
@@ -1238,7 +1239,7 @@ class AIManager:
             # 更新预测计数
             conn.execute(
                 "UPDATE prediction_models SET prediction_count  = prediction_count + 1 WHERE id  = ?",
-                (model_id, ),
+                (model_id,),
             )
             conn.commit()