feat(map): 添加地图加载状态管理和错误处理功能

重构地图组件，增加加载状态管理和错误处理机制：
1. 添加加载中和错误状态UI展示
2. 实现带指数退避的重试机制
3. 优化错误信息提示
4. 清理未使用的组件导入

 {
   "globals": {
     "EffectScope": true,
-    "ElMessage": true,
     "computed": true,
     "createApp": true,
     "customRef": true,

@@ -13,10 +13,6 @@ declare module '@vue/runtime-core' {
     AudioBackground1: typeof import('./src/components/audioBackground1.vue')['default']
     AudioList: typeof import('./src/components/audioList.vue')['default']
     BottomNav: typeof import('./src/components/BottomNav.vue')['default']
-    ElButton: typeof import('element-plus/es')['ElButton']
-    ElInput: typeof import('element-plus/es')['ElInput']
-    ElOption: typeof import('element-plus/es')['ElOption']
-    ElSelect: typeof import('element-plus/es')['ElSelect']
     Floor: typeof import('./src/components/Floor/index.vue')['default']
     InfoPopup: typeof import('./src/components/InfoPopup.vue')['default']
     InfoPopupLite: typeof import('./src/components/InfoPopupLite.vue')['default']
@@ -28,25 +24,9 @@ declare module '@vue/runtime-core' {
     RouterLink: typeof import('vue-router')['RouterLink']
     RouterView: typeof import('vue-router')['RouterView']
     SvgIcon: typeof import('./src/components/Floor/svgIcon.vue')['default']
-    VanBackTop: typeof import('vant/es')['BackTop']
-    VanButton: typeof import('vant/es')['Button']
-    VanCol: typeof import('vant/es')['Col']
-    VanConfigProvider: typeof import('vant/es')['ConfigProvider']
     VanDialog: typeof import('vant/es')['Dialog']
-    VanField: typeof import('vant/es')['Field']
-    VanFloatingPanel: typeof import('vant/es')['FloatingPanel']
     VanIcon: typeof import('vant/es')['Icon']
-    VanImage: typeof import('vant/es')['Image']
-    VanImagePreview: typeof import('vant/es')['ImagePreview']
-    VanOverlay: typeof import('vant/es')['Overlay']
     VanPopup: typeof import('vant/es')['Popup']
-    VanRow: typeof import('vant/es')['Row']
-    VanSlider: typeof import('vant/es')['Slider']
-    VanSwipe: typeof import('vant/es')['Swipe']
-    VanSwipeItem: typeof import('vant/es')['SwipeItem']
-    VanTab: typeof import('vant/es')['Tab']
-    VanTabs: typeof import('vant/es')['Tabs']
-    VanToast: typeof import('vant/es')['Toast']
     VRViewer: typeof import('./src/components/VRViewer/index.vue')['default']
   }
 }

@@ -2,7 +2,6 @@
 export {}
 declare global {
   const EffectScope: typeof import('vue')['EffectScope']
-  const ElMessage: typeof import('element-plus/es')['ElMessage']
   const computed: typeof import('vue')['computed']
   const createApp: typeof import('vue')['createApp']
   const customRef: typeof import('vue')['customRef']