fix: 修复导览按钮文案与三维路线显示联动

Co-authored-by: Cursor <cursoragent@cursor.com>

src/components/map/ThreeMap.vue

@@ -48,6 +48,7 @@
 import { computed, nextTick, onMounted, onUnmounted, ref, watch } from 'vue'
 import * as THREE from 'three'
 import { GLTFLoader, type GLTF } from 'three/addons/loaders/GLTFLoader.js'
+import { DRACOLoader } from 'three/addons/loaders/DRACOLoader.js'
 import { OrbitControls } from 'three/addons/controls/OrbitControls.js'
 import FloorSwitcher from './FloorSwitcher.vue'
 import type {
@@ -194,6 +195,7 @@ let camera: THREE.PerspectiveCamera | null = null
 let renderer: THREE.WebGLRenderer | null = null
 let controls: OrbitControls | null = null
 let loader: GLTFLoader | null = null
+let dracoLoader: DRACOLoader | null = null
 let activeModel: THREE.Object3D | null = null
 let poiGroup: THREE.Group | null = null
 let routeGroup: THREE.Group | null = null
@@ -682,6 +684,9 @@ const initThree = async () => {
   syncControlInteractionOptions()
 
   loader = new GLTFLoader()
+  dracoLoader = new DRACOLoader()
+  dracoLoader.setDecoderPath('/static/three/draco/')
+  loader.setDRACOLoader(dracoLoader)
   poiGroup = new THREE.Group()
   poiGroup.name = 'GuideModelPOI'
   scene.add(poiGroup)
@@ -2298,6 +2303,8 @@ const disposeScene = () => {
   scene = null
   camera = null
   loader = null
+  dracoLoader?.dispose()
+  dracoLoader = null
   poiGroup = null
   routeGroup = null
 
@@ -2321,6 +2328,7 @@ defineExpose({
     queueTargetFocus(request)
   },
   clearSelection: clearMapSelection,
+  clearRoute: clearRoutePreview,
   clearNavigation: () => clearMapSelection(false),
   disableAutoSwitchTemporarily
 })
@@ -2346,6 +2354,12 @@ watch(() => [props.routePreview, props.showRoute], () => {
   deep: true
 })
 
+watch(() => props.initialView, (newView) => {
+  if (newView === 'floor' || newView === 'multi') {
+    activeView.value = newView
+  }
+})
+
 onMounted(() => {
   init3DScene()
 })