更新pubspec。修改启动屏幕的启动后台XML，并通过删除过时的文件和增强会话管理来重构记录功能。

pubspec.yaml

@@ -58,6 +58,8 @@ dev_dependencies:
   # package. See that file for information about deactivating specific lint
   # rules and activating additional ones.
   flutter_lints: ^6.0.0
+  build_runner: ^2.15.0
+  flutter_gen_runner: ^5.14.1
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec
@@ -68,7 +70,11 @@ flutter:
   # included with your application, so that you can use the icons in
   # the material Icons class.
   uses-material-design: true
+  generate: true
 
+  # To add assets to your application, add an assets section, like this:
+  assets:
+    - assets/images/
   # To add assets to your application, add an assets section, like this:
   # assets:
   #   - images/a_dot_burr.jpeg
@@ -99,3 +105,8 @@ flutter:
   #
   # For details regarding fonts from package dependencies,
   # see https://flutter.dev/to/font-from-package
+
+flutter_gen:
+  output: lib/gen/
+  integrations:
+    flutter_svg: true