feat(frontend): 实现数据集生成页面的文档和模板选择功能

- 添加文档和模板的下拉选择框
- 实现文档和模板选择后的状态更新
- 优化页面布局，分为文档和模板两个列

frontend/dataset_generate_page.py

@@ -1,9 +1,41 @@
 import gradio as gr
+from global_var import docs, scan_docs_directory, prompt_store
 
 def dataset_generate_page():
     with gr.Blocks() as demo:
         gr.Markdown("## 数据集生成")
         with gr.Row():
             with gr.Column():
-                pass
+                # 获取文档列表并设置初始值
+                docs_list = [str(doc.name) for doc in scan_docs_directory("workdir")]
+                initial_doc = docs_list[0] if docs_list else None
+                
+                doc_dropdown = gr.Dropdown(
+                    choices=docs_list,
+                    value=initial_doc,  # 设置初始选中项
+                    label="选择文档",
+                    allow_custom_value=True,
+                    interactive=True
+                )
+                doc_state = gr.State(value=initial_doc)  # 用文档初始值初始化状态
+
+            with gr.Column():
+                # 获取模板列表并设置初始值
+                prompts = prompt_store.all()
+                prompt_choices = [f"{p['id']} {p['name']}" for p in prompts]
+                initial_prompt = prompt_choices[0] if prompt_choices else None
+                
+                prompt_dropdown = gr.Dropdown(
+                    choices=prompt_choices,
+                    value=initial_prompt,  # 设置初始选中项
+                    label="选择模板",
+                    allow_custom_value=True,
+                    interactive=True
+                )
+                prompt_state = gr.State(value=initial_prompt)  # 用模板初始值初始化状态
+
+        # 绑定事件（保留原有逻辑，确保交互时更新）
+        doc_dropdown.change(lambda x: x, inputs=doc_dropdown, outputs=doc_state)
+        prompt_dropdown.change(lambda x: x, inputs=prompt_dropdown, outputs=prompt_state)
+
     return demo

global_var.py

@@ -1,4 +1,6 @@
 from db import get_sqlite_engine,get_prompt_tinydb
+from tools import scan_docs_directory
 
 prompt_store = get_prompt_tinydb("workdir")
-sql_engine = get_sqlite_engine("workdir")
+sql_engine = get_sqlite_engine("workdir")
+docs = scan_docs_directory("workdir")