fix(pl): 司机回执缺品牌数量时仍保存单据，并按业务结果提示成败。

未填写品牌数量不再拦截照片和备注；已填写的品牌数量仍校验。小程序在 HTTP 200 的业务失败下不再弹出保存成功。

Co-authored-by: Cursor <cursoragent@cursor.com>

miniprogram/utils/__tests__/portalEnvelope.test.mjs

@@ -0,0 +1,30 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+
+import { portalBusinessErrorMessage } from '../portalEnvelope.js'
+
+test('portal business failure keeps the server message', () => {
+  assert.equal(
+    portalBusinessErrorMessage({
+      code: 400,
+      message: '有品牌产品须填写至少一个品牌数量',
+      data: null
+    }),
+    '有品牌产品须填写至少一个品牌数量'
+  )
+})
+
+test('portal success and raw payloads are not errors', () => {
+  assert.equal(
+    portalBusinessErrorMessage({ code: 200, message: 'success', data: { success: true } }),
+    null
+  )
+  assert.equal(portalBusinessErrorMessage({ code: 0, msg: 'ok' }), null)
+  assert.equal(portalBusinessErrorMessage({ id: 'plan-1', planNo: 'PO1' }), null)
+  assert.equal(portalBusinessErrorMessage({ code: 'ABC', name: '地磅单据' }), null)
+  assert.equal(portalBusinessErrorMessage(null), null)
+})
+
+test('portal failure without a message still fails', () => {
+  assert.equal(portalBusinessErrorMessage({ code: '400', data: null }), '请求失败')
+})