fix(frontend): 优化 API Provider 添加功能并处理异常

- 为 model_id、base_url 和 api_key 添加空值检查，避免无效输入
- 添加异常处理，确保在出现错误时能够及时响应并提示用户
- 优化 add_provider 函数，提高代码可读性和健壮性

frontend/setting_page.py

@@ -17,19 +17,52 @@ def setting_page():
                 for p in providers
             ]
 
+    def add_provider(model_id, base_url, api_key):
+        try:
+            with Session(engine) as session:
+                new_provider = APIProvider(
+                    model_id=model_id if model_id else None,
+                    base_url=base_url if base_url else None,
+                    api_key=api_key if api_key else None
+                )
+                session.add(new_provider)
+                session.commit()
+                session.refresh(new_provider)
+                return get_providers()
+        except Exception as e:
+            # 抛出错误提示
+            raise gr.Error(f"添加失败: {str(e)}")
+
     with gr.Blocks() as demo:
         gr.Markdown("## API Provider 管理")
         
         with gr.Row():
+            with gr.Column(scale=1):
+                
+                model_id_input = gr.Textbox(label="Model ID")
+                base_url_input = gr.Textbox(label="Base URL")
+                api_key_input = gr.Textbox(label="API Key")
+                add_button = gr.Button("添加新API")
+
             # API Provider列表
-            with gr.Column(scale=2):
+            with gr.Column(scale=3):
                 provider_table = gr.DataFrame(
-                    headers=["id" , "model id", "URL", "API Key"],
+                    headers=["id" , "model id", "base URL", "API Key"],
                     datatype=["number","str", "str", "str"],
                     interactive=True,
                     value=get_providers(),
                     wrap=True,
-                    col_count=(4, "fixed")
+                    col_count=(4, "auto")
                 )
+                with gr.Row():
+                    edit_button = gr.Button("编辑选中行")
+                    delete_button = gr.Button("删除选中行")
+
+
+        add_button.click(
+            fn=add_provider,
+            inputs=[model_id_input, base_url_input, api_key_input],
+            outputs=[provider_table]
+        )
 
     return demo