Update: Refactor to absolute imports, fix QPS limits, and enhance Gitea sync with SQLite support

app/ui/file_operations.py

@@ -16,7 +16,17 @@ def select_file(log_widget, file_types=None, title="选择文件"):
     """通用文件选择对话框"""
     if file_types is None:
         file_types = [("所有文件", "*.*")]
-    file_path = filedialog.askopenfilename(title=title, filetypes=file_types)
+    
+    # 获取默认输入目录
+    try:
+        config = ConfigManager()
+        initial_dir = config.get_path('Paths', 'input_folder', fallback='data/input')
+        if not os.path.exists(initial_dir):
+            initial_dir = os.getcwd()
+    except Exception:
+        initial_dir = os.getcwd()
+
+    file_path = filedialog.askopenfilename(title=title, filetypes=file_types, initialdir=initial_dir)
     if file_path:
         add_to_log(log_widget, f"已选择文件: {file_path}\n", "info")
     return file_path