feat: 修复了插件需要外部Provider的问题；加上了一个简易的车控状态返回

lib/bloc/ai_chat_cubit.dart

@@ -0,0 +1,24 @@
+import '../enums/vehicle_command_type.dart';
+import '../services/command_service.dart';
+import 'easy_bloc.dart';
+import 'command_state.dart';
+
+class AIChatCommandCubit extends EasyCubit<AIChatCommandState> {
+  AIChatCommandCubit() : super(const AIChatCommandState());
+
+  // 重置状态
+  void reset() {
+    emit(const AIChatCommandState());
+  }
+
+  // 生成唯一命令ID
+  String _generateCommandId() {
+    return '${DateTime.now().millisecondsSinceEpoch}_${state.commandType?.name ?? 'unknown'}';
+  }
+
+  // 检查当前是否有命令在执行
+  bool get isExecuting => state.status == AIChatCommandStatus.executing;
+
+  // 获取当前命令ID
+  String? get currentCommandId => state.commandId;
+}