新增: 跨端图片上传(file.1216.top URL 优先,失败回退 base64,协议对齐)

apps/df-miniapp/src/composables/useAiChat.ts

@@ -988,10 +988,16 @@ function send(text: string, skill?: string | null, spans?: MentionSpan[] | null,
   maxRoundsActive.value = false // P1-E:新 generation 清 MaxRounds 挂起
 
   // 本地先 push user 气泡(乐观渲染,对齐桌面 sendMessage)
+  // images:从 parts 提取图片展示(优先 url,回退 base64 dataURL),避免 content 空时空白气泡。
+  const userImages = (parts || [])
+    .filter((p) => p.type === 'image')
+    .map((p) => (p.type === 'image' ? (p.url || (p.base64 ? `data:${p.media_type};base64,${p.base64}` : '')) : ''))
+    .filter((s) => !!s)
   messages.value.push({
     id: genId('user'),
     role: 'user',
     content: trimmed,
+    ...(userImages.length ? { images: userImages } : {}),
     timestamp: Date.now(),
   }); triggerRef(messages)