feat: Refactor workflow update logic and improve formatting

- Enhance readability by adjusting indentation and line breaks
- Refactor response creation for better code structure
- Remove unnecessary blank lines for cleaner code appearance

Author: bobo yang

devchat/_service/route/workflows.py

@@ -60,18 +60,18 @@ def get_config():
 @router.post("/update", response_model=response.UpdateWorkflows)
 def update_workflows():
     chat_config_path = Path(CHAT_DIR) / CHAT_CONFIG_FILENAME
-    
+
     if chat_config_path.exists():
         with open(chat_config_path, "r", encoding="utf-8") as file:
             chat_config = yaml.safe_load(file)
-        
+
         providers = chat_config.get("providers", {})
         devchat_api_key = providers.get("devchat", {}).get("api_key", "")
         openai_api_key = providers.get("openai", {}).get("api_key", "")
-        
+
         if devchat_api_key or openai_api_key:
             update_public_workflow = chat_config.get("update_public_workflow", True)
-            
+
             if update_public_workflow:
                 base_path = Path(WORKFLOWS_BASE)
 
@@ -84,11 +84,19 @@ def update_workflows():
 
                 return response.UpdateWorkflows(updated=updated, message=message)
             else:
-                return response.UpdateWorkflows(updated=False, message="Workflow update has been ignored due to configuration settings.")
+                return response.UpdateWorkflows(
+                    updated=False,
+                    message="Workflow update has been ignored due to configuration settings.",
+                )
         else:
-            return response.UpdateWorkflows(updated=False, message="No valid API key found, workflow update ignored.")
+            return response.UpdateWorkflows(
+                updated=False, message="No valid API key found, workflow update ignored."
+            )
     else:
-        return response.UpdateWorkflows(updated=False, message="Configuration file not found, workflow update ignored.")
+        return response.UpdateWorkflows(
+            updated=False, message="Configuration file not found, workflow update ignored."
+        )
+
 
 @router.post("/custom_update", response_model=response.UpdateWorkflows)
 def update_custom_workflows():