fix: auto-fix code issues (cron)

- 修复重复导入/字段
- 修复异常处理
- 修复PEP8格式问题
- 添加类型注解

backend/workflow_manager.py

@@ -234,8 +234,8 @@ class WebhookNotifier:
                         "zh_cn": {
                             "title": message.get("title", ""),
                             "content": message.get("body", []),
-                        }
-                    }
+                        },
+                    },
                 },
             }
         else:
@@ -264,7 +264,7 @@ class WebhookNotifier:
             secret_enc = config.secret.encode("utf-8")
             string_to_sign = f"{timestamp}\n{config.secret}"
             hmac_code = hmac.new(
-                secret_enc, string_to_sign.encode("utf-8"), digestmod=hashlib.sha256
+                secret_enc, string_to_sign.encode("utf-8"), digestmod=hashlib.sha256,
             ).digest()
             sign = urllib.parse.quote_plus(base64.b64encode(hmac_code))
             url = f"{config.url}&timestamp = {timestamp}&sign = {sign}"
@@ -422,7 +422,7 @@ class WorkflowManager:
         )
 
         logger.info(
-            f"Scheduled workflow {workflow.id} ({workflow.name}) with {workflow.schedule_type}"
+            f"Scheduled workflow {workflow.id} ({workflow.name}) with {workflow.schedule_type}",
         )
 
     async def _execute_workflow_job(self, workflow_id: str) -> None:
@@ -497,7 +497,7 @@ class WorkflowManager:
             conn.close()
 
     def list_workflows(
-        self, project_id: str = None, status: str = None, workflow_type: str = None
+        self, project_id: str = None, status: str = None, workflow_type: str = None,
     ) -> list[Workflow]:
         """列出工作流"""
         conn = self.db.get_conn()
@@ -518,7 +518,7 @@ class WorkflowManager:
             where_clause = " AND ".join(conditions) if conditions else "1 = 1"
 
             rows = conn.execute(
-                f"SELECT * FROM workflows WHERE {where_clause} ORDER BY created_at DESC", params
+                f"SELECT * FROM workflows WHERE {where_clause} ORDER BY created_at DESC", params,
             ).fetchall()
 
             return [self._row_to_workflow(row) for row in rows]
@@ -780,7 +780,7 @@ class WorkflowManager:
         conn = self.db.get_conn()
         try:
             row = conn.execute(
-                "SELECT * FROM webhook_configs WHERE id = ?", (webhook_id,)
+                "SELECT * FROM webhook_configs WHERE id = ?", (webhook_id,),
             ).fetchone()
 
             if not row:
@@ -1159,7 +1159,7 @@ class WorkflowManager:
             raise
 
     async def _execute_tasks_with_deps(
-        self, tasks: list[WorkflowTask], input_data: dict, log_id: str
+        self, tasks: list[WorkflowTask], input_data: dict, log_id: str,
     ) -> dict:
         """按依赖顺序执行任务"""
         results = {}
@@ -1413,7 +1413,7 @@ class WorkflowManager:
     # ==================== Notification ====================
 
     async def _send_workflow_notification(
-        self, workflow: Workflow, results: dict, success: bool = True
+        self, workflow: Workflow, results: dict, success: bool = True,
     ) -> None:
         """发送工作流执行通知"""
         if not workflow.webhook_ids:
@@ -1500,8 +1500,8 @@ class WorkflowManager:
                     ],
                     "footer": "InsightFlow",
                     "ts": int(datetime.now().timestamp()),
-                }
-            ]
+                },
+            ],
         }