修复室内导览楼层切换事务一致性

src/components/navigation/GuideMapShell.vue

@@ -445,6 +445,7 @@ const activeFloorId = computed(() => {
   return normalizedFloor?.id || normalizedFloorId
 })
 const activeFloorScrollIntoView = ref('')
+const pendingFloorId = ref('')
 let suppressFloorAutoScrollUntil = 0
 
 const syncActiveFloorScroll = () => {
@@ -523,15 +524,31 @@ const handleModeChange = (mode: '2d' | '3d') => {
   emit('modeChange', mode)
 }
 
+const isStaleFloorSwitchError = (error: unknown) => (
+  error instanceof Error && error.message === 'STALE_MODEL_LOAD'
+)
+
 const handleFloorChange = (floor: { id: string; label: string }) => {
   const floorId = floor.id || props.normalizeFloorId(floor.label)
+  if (!floorId || pendingFloorId.value === floorId) return
+
+  pendingFloorId.value = floorId
   suppressFloorAutoScrollUntil = Date.now() + 650
   activeFloorScrollIntoView.value = ''
   indoorRendererRef.value?.disableAutoSwitchTemporarily?.(10000)
-  void indoorRendererRef.value?.switchFloor?.(floorId)
   emit('indoorViewChange', 'floor')
   emit('layerModeChange', 'single')
-  emit('floorChange', floor.label)
+
+  Promise.resolve(indoorRendererRef.value?.switchFloor?.(floorId))
+    .catch((error) => {
+      if (isStaleFloorSwitchError(error)) return
+      console.error('楼层切换失败:', error)
+    })
+    .finally(() => {
+      if (pendingFloorId.value === floorId) {
+        pendingFloorId.value = ''
+      }
+    })
 }
 
 const handleLayerModeChange = (mode: LayerDisplayMode) => {
@@ -539,10 +556,22 @@ const handleLayerModeChange = (mode: LayerDisplayMode) => {
   indoorRendererRef.value?.disableAutoSwitchTemporarily?.(10000)
 
   if (mode === 'multi') {
+    pendingFloorId.value = ''
     void indoorRendererRef.value?.showMultiFloor?.()
     emit('indoorViewChange', 'multi')
   } else {
-    void indoorRendererRef.value?.switchFloor?.(activeFloorId.value)
+    const floorId = activeFloorId.value
+    pendingFloorId.value = floorId
+    Promise.resolve(indoorRendererRef.value?.switchFloor?.(floorId))
+      .catch((error) => {
+        if (isStaleFloorSwitchError(error)) return
+        console.error('楼层切换失败:', error)
+      })
+      .finally(() => {
+        if (pendingFloorId.value === floorId) {
+          pendingFloorId.value = ''
+        }
+      })
     emit('indoorViewChange', 'floor')
   }
 
@@ -593,8 +622,7 @@ const handleMoreTap = () => {
 }
 
 const handleThreeFloorChange = (floorId: string) => {
-  const floor = indoorFloors.value.find((item) => item.id === floorId)
-  emit('floorChange', floor?.label || floorId)
+  emit('floorChange', floorId)
   emit('indoorViewChange', 'floor')
   emit('layerModeChange', 'single')
 }