feat: 添加README以及example项目，修复plugin的路径，新建basic_intl的本地依赖

pubspec.yaml

@@ -14,10 +14,12 @@ dependencies:
   flutter_markdown: ^0.7.7+1
   audioplayers: ^5.2.1
   uuid: ^3.0.5
-  permission_handler: ^10.3.0
+  permission_handler: ^12.0.0
   provider: ^6.1.5
   flutter_tts: ^4.2.0
-  basic_intl: ^0.2.0
+#  basic_intl: 0.2.0
+  basic_intl:
+    path: packages/basic_intl
 #  flutter_ingeek_carkey: 1.4.7
 #  app_car:
 #    path: ../app_car
@@ -27,6 +29,11 @@ flutter:
   uses-material-design: true
   assets:
     - assets/images/
+  plugin:
+    platforms:
+      android:
+        package: com.example.ai_assistant_plugin
+        pluginClass: AiAssistantPlugin
   fonts:
     - family: VWHead_Bold
       fonts: