修改：处理偶发会话不存在的问题

src/api/jingdong.ts

@@ -712,7 +712,14 @@ export const getUploadUrl = async (input: {
   )
 
   // 注意：若 Content-Type 不是 application/json，axios 会把 body 留成 string
-  const ticket = parseUploadUrlResult(response?.data)
+  const body = coerceResponseBody(response?.data)
+  const code = Number(body.code)
+  // 业务失败（如会话不存在）需抛出原文，避免被吞成「缺少 upload_id」
+  if (Number.isFinite(code) && code !== 1000 && code !== 0) {
+    throw new Error(textOf(body.message || body.msg) || '签发上传地址失败')
+  }
+
+  const ticket = parseUploadUrlResult(body)
 
   if (!ticket.upload_id) {
     throw new Error('签发上传地址失败：缺少 upload_id')