refactor: reorganize project structure and implement self-managed i18n/theme for components

src/index.ts

@@ -1,10 +1,11 @@
 import { BimEngine } from './bim-engine';
 
-// 导出 OptBtnGroups 组件，用于工具栏操作
-export { OptBtnGroups } from './toolbar';
+// 导出通用组件
+export { BimButtonGroup } from './components/button-group';
+export { Toolbar } from './components/button-group/toolbar';
 
 // 导出相关类型定义
-export type { OptButton, ButtonGroup, OptBtnGroupsOptions, ClickPayload } from './toolbar/index.type';
+export type { OptButton, ButtonGroup, ButtonGroupOptions, ClickPayload } from './components/button-group/index.type';
 
 // 导出主引擎类
 export { BimEngine };