filter invalid booth gallery images

@@ -29,14 +29,34 @@ const activityId = ref('')
 
 const isApiSuccess = code => Number(code) === 1
 
-const mapBoothImages = boothImages =>
+const normalizeBoothImageUrls = boothImages =>
   boothImages
-    .filter(item => typeof item === 'string' && item.trim() !== '')
+    .filter(item => typeof item === 'string')
+    .map(item => item.trim())
+    .filter(url => url !== '')
+
+const isValidImageUrl = async url => {
+  try {
+    await Taro.getImageInfo({ src: url })
+    return true
+  } catch (error) {
+    console.warn('[BoothMapGallery] 过滤非图片展位资源:', url, error)
+    return false
+  }
+}
+
+const mapBoothImages = async boothImages => {
+  const normalizedUrls = normalizeBoothImageUrls(boothImages)
+  const validityList = await Promise.all(normalizedUrls.map(url => isValidImageUrl(url)))
+
+  return normalizedUrls
+    .filter((_, index) => validityList[index])
     .map((url, index) => ({
       id: `booth-${index}`,
       url,
       mode: 'widthFix',
     }))
+}
 
 const fetchBoothImages = async () => {
   if (!activityId.value) {
@@ -62,7 +82,7 @@ const fetchBoothImages = async () => {
       return
     }
 
-    imageList.value = mapBoothImages(result?.data?.booth_images || [])
+    imageList.value = await mapBoothImages(result?.data?.booth_images || [])
   } catch (error) {
     console.error('[BoothMapGallery] 获取展位图失败:', error)
     imageList.value = []