补齐讲解字段映射并优先展示接口展厅图

src/view-models/explainViewModels.ts

@@ -46,7 +46,11 @@ export interface ExplainDetailPageViewModel {
   coverImages: string[]
   hallId?: string
   hallName?: string
+  floorId?: string
   floorLabel?: string
+  poiId?: string
+  mapX?: number
+  mapY?: number
   summary: string
   body: string
   audio: {
@@ -61,6 +65,7 @@ export interface ExplainDetailPageViewModel {
     statusText?: string
   }
   imageStatus?: string
+  galleryStatusText?: string
   linkedExhibitCount?: number
   isSharedStop?: boolean
   linkedExhibitStatusText?: string
@@ -68,8 +73,11 @@ export interface ExplainDetailPageViewModel {
     id: string
     name: string
     nameEn?: string
+    code?: string
     exhibitCode?: string
     coverImageUrl?: string
+    galleryUrls?: string[]
+    sortOrder?: number
   }>
   chapters: Array<{
     id: string
@@ -171,6 +179,10 @@ export const toExplainExhibitViewModel = (exhibit: MuseumExhibit): ExplainExhibi
 
 export const toExplainDetailPageViewModel = (exhibit: MuseumExhibit): ExplainDetailPageViewModel => {
   const hasPlayableAudio = isAudioReady(exhibit)
+  const coverImages = [
+    exhibit.image || EXPLAIN_DETAIL_PLACEHOLDER_IMAGE,
+    ...(exhibit.galleryUrls || [])
+  ].filter(Boolean)
   const linkedExhibitCount = typeof exhibit.linkedExhibitCount === 'number'
     ? exhibit.linkedExhibitCount
     : exhibit.linkedExhibits?.length
@@ -195,13 +207,14 @@ export const toExplainDetailPageViewModel = (exhibit: MuseumExhibit): ExplainDet
     title: exhibit.name,
     subtitle: buildSubtitle(exhibit),
     contentType: contentTypeFor(exhibit),
-    coverImages: [
-      exhibit.image || EXPLAIN_DETAIL_PLACEHOLDER_IMAGE,
-      ...(exhibit.galleryUrls || [])
-    ].filter(Boolean),
+    coverImages,
     hallId: exhibit.hallId,
     hallName: exhibit.hallName,
+    floorId: exhibit.floorId,
     floorLabel: exhibit.floorLabel,
+    poiId: exhibit.poiId,
+    mapX: exhibit.mapX,
+    mapY: exhibit.mapY,
     summary: transcript || '该展项暂无讲解文稿。',
     body,
     audio: {
@@ -218,6 +231,7 @@ export const toExplainDetailPageViewModel = (exhibit: MuseumExhibit): ExplainDet
       statusText: hasPlayableAudio ? '可播放' : '当前语言暂无语音讲解'
     },
     imageStatus: exhibit.imageStatus,
+    galleryStatusText: coverImages.length > 1 ? `共 ${coverImages.length} 张讲解图片` : undefined,
     linkedExhibitCount,
     isSharedStop: exhibit.isSharedStop,
     linkedExhibitStatusText,