feat(dataset): 初步完成数据集管理页面和功能

frontend/dataset_manage_page.py

@@ -1,9 +1,28 @@
 import gradio as gr
+from global_var import datasets
 
 def dataset_manage_page():
     with gr.Blocks() as demo:
         gr.Markdown("## 数据集管理")
         with gr.Row():
+            with gr.Column():
+                # 获取数据集列表并设置初始值
+                datasets_list = [str(ds["name"]) for ds in datasets.all()]
+                initial_dataset = datasets_list[0] if datasets_list else None
+                
+                dataset_dropdown = gr.Dropdown(
+                    choices=datasets_list,
+                    value=initial_dataset,  # 设置初始选中项
+                    label="选择数据集",
+                    allow_custom_value=True,
+                    interactive=True
+                )
+                dataset_state = gr.State(value=initial_dataset)  # 用数据集初始值初始化状态
+
             with gr.Column():
                 pass
+
+        # 绑定事件，确保交互时更新状态
+        dataset_dropdown.change(lambda x: x, inputs=dataset_dropdown, outputs=dataset_state)
+
     return demo