fix：优化PDF转换逻辑

ui/views/home_page.py

@@ -1,17 +1,16 @@
 from nicegui import ui
+
 from config.config import load_config
 from ui.core.state import app_state
 from ui.core.task_runner import run_task, select_folder
-
+from utils.file_utils import open_folder
 # 导入业务函数
 from utils.generate_utils import (
     generate_template,
     generate_comment_all,
-    generate_convert_pdf,
     generate_report,
     generate_zodiac,
 )
-from utils.file_utils import open_folder
 
 config = load_config("config.toml")
 
@@ -68,9 +67,20 @@ def create_home_page():
                 func_btn("📁 生成图片路径", generate_template)
                 func_btn("🤖 生成评语 (AI)", generate_comment_all)
                 func_btn("📊 生成报告 (PPT)", generate_report)
-                func_btn("📑 格式转换 (PDF)", generate_convert_pdf)
                 func_btn("🐂 生肖转化 (生日)", generate_zodiac)
 
+                # 格式转换按钮
+                async def on_convert_pdf_click():
+                    selected_folder = await select_folder()
+                    if selected_folder:
+                        ui.navigate.to(f"/convert_pdf?folder={selected_folder}")
+                    else:
+                        ui.notify("未选择目录", type="warning")
+
+                ui.button("📑 格式转换 (PDF)", on_click=on_convert_pdf_click).props(
+                    f"outline"
+                ).classes("w-full")
+
                 # 签名按钮
                 async def on_signature_click():
                     selected_folder = await select_folder()