统一楼层视觉基线与详情返回复位

src/composables/useGuideModelState.ts

@@ -18,6 +18,12 @@ export type GuideModelInitialState = Readonly<{
   autoFloorSwitchActive: boolean
 }>
 
+export type PoiDetailReturnContext = Readonly<{
+  floorId: string
+  resetMode: 'floor-baseline'
+  requestId: number
+}>
+
 // The object is frozen so callers cannot accidentally turn a captured baseline into live state.
 export const GUIDE_MODEL_INITIAL_STATE: GuideModelInitialState = Object.freeze({
   mode: '3d',
@@ -38,8 +44,9 @@ export const GUIDE_MODEL_INITIAL_STATE: GuideModelInitialState = Object.freeze({
 })
 
 const initialState = ref<GuideModelInitialState>(GUIDE_MODEL_INITIAL_STATE)
-const pendingModelResetAfterPoiDetail = ref(false)
+const pendingModelResetAfterPoiDetail = ref<PoiDetailReturnContext | null>(null)
 const requestGeneration = ref(0)
+let poiDetailRequestId = 0
 
 export const useGuideModelState = () => {
   const initializeModel = (floorId: string) => {
@@ -52,18 +59,24 @@ export const useGuideModelState = () => {
     return initialState.value
   }
 
-  const beginPoiDetailReturn = () => {
-    pendingModelResetAfterPoiDetail.value = true
+  const beginPoiDetailReturn = (floorId: string) => {
+    const context = Object.freeze({
+      floorId,
+      resetMode: 'floor-baseline' as const,
+      requestId: ++poiDetailRequestId
+    })
+    pendingModelResetAfterPoiDetail.value = context
+    return context
   }
 
   const cancelPoiDetailReturn = () => {
-    pendingModelResetAfterPoiDetail.value = false
+    pendingModelResetAfterPoiDetail.value = null
   }
 
   const consumePoiDetailReturn = () => {
-    if (!pendingModelResetAfterPoiDetail.value) return false
-    pendingModelResetAfterPoiDetail.value = false
-    return true
+    const context = pendingModelResetAfterPoiDetail.value
+    pendingModelResetAfterPoiDetail.value = null
+    return context
   }
 
   // All async focus/floor operations compare this generation before committing.