task-96(店铺中心): 实现店铺账号字段校验

新增 shop-manage-field-validators.ts：分组/店铺名/商城/账号/密码逐字段校验
与汇总，错误文案与后端 NotBlank/Size 规则一致。

TDD: task-96.test.ts 8 用例先 RED 后 GREEN。

admin-frontend-vue/src/pages/shop/shop-manage-field-validators.ts

@@ -0,0 +1,54 @@
+/** 店铺中心逐字段校验（任务 96）：账号/密码等店铺字段可独立校验，错误文案与后端 NotBlank/Size 一致；纯逻辑。 */
+import type { ShopManageFormErrors, ShopManageFormValues } from './shop-manage-form-model.ts'
+
+export const SHOP_MANAGE_ZN_USERNAME_MAX_LEN = 128
+
+function requiredText(value: string): string {
+  return (value || '').trim()
+}
+
+export function validateGroupId(value: number | null): string | undefined {
+  return typeof value === 'number' && Number.isFinite(value) && value >= 1 ? undefined : '分组不能为空'
+}
+
+export function validateShopNameValue(value: string): string | undefined {
+  return requiredText(value) ? undefined : '店铺名称不能为空'
+}
+
+export function validateMallNameValue(value: string): string | undefined {
+  return requiredText(value) ? undefined : '商城名称不能为空'
+}
+
+export function validateAccount(value: string): string | undefined {
+  return requiredText(value) ? undefined : '账号不能为空'
+}
+
+export function validatePassword(value: string): string | undefined {
+  return requiredText(value) ? undefined : '密码不能为空'
+}
+
+export function validateZnUsernameLength(value: string): string | undefined {
+  const trimmed = (value || '').trim()
+  if (trimmed.length > SHOP_MANAGE_ZN_USERNAME_MAX_LEN) {
+    return `自动化账号长度不能超过${SHOP_MANAGE_ZN_USERNAME_MAX_LEN}个字符`
+  }
+  return undefined
+}
+
+/** 汇总逐字段错误（供编辑/新增表单即时反馈）。 */
+export function collectShopManageFieldErrors(form: ShopManageFormValues): ShopManageFormErrors {
+  const errors: ShopManageFormErrors = {}
+  const groupError = validateGroupId(form.groupId)
+  if (groupError) errors.groupId = groupError
+  const nameError = validateShopNameValue(form.shopName)
+  if (nameError) errors.shopName = nameError
+  const mallError = validateMallNameValue(form.mallName)
+  if (mallError) errors.mallName = mallError
+  const accountError = validateAccount(form.account)
+  if (accountError) errors.account = accountError
+  const passwordError = validatePassword(form.password)
+  if (passwordError) errors.password = passwordError
+  const znError = validateZnUsernameLength(form.znUsername)
+  if (znError) errors.znUsername = znError
+  return errors
+}

admin-frontend-vue/tests/task-96.test.ts

@@ -0,0 +1,69 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readSource } from './helpers.ts'
+import {
+  collectShopManageFieldErrors,
+  validateAccount,
+  validateGroupId,
+  validateMallNameValue,
+  validatePassword,
+  validateShopNameValue,
+  validateZnUsernameLength,
+} from '../src/pages/shop/shop-manage-field-validators.ts'
+
+test('test_task_096_shop_field_validators_normal_primary_path', () => {
+  // 正常主路径：合法账号/密码字段无错误。
+  assert.equal(validateAccount('sale@a.com'), undefined)
+  assert.equal(validatePassword('p@ss'), undefined)
+  assert.equal(validateShopNameValue('BlueWave'), undefined)
+  assert.equal(validateGroupId(3), undefined)
+})
+
+test('test_task_096_shop_field_validators_normal_variant_input', () => {
+  // 正常变体：可选自动化账号超长报错，其余字段各自独立。
+  assert.equal(validateZnUsernameLength('x'.repeat(128)), undefined)
+  assert.match(validateZnUsernameLength('y'.repeat(129)) || '', /128/)
+  assert.equal(validateMallNameValue('  '), '商城名称不能为空')
+})
+
+test('test_task_096_shop_field_validators_repeated_is_idempotent', () => {
+  // 正常重复：逐字段校验结果稳定、不改输入。
+  assert.equal(validateAccount('a@b.c'), validateAccount('a@b.c'))
+  const form = { groupId: 2, shopName: 'S', mallName: 'M', znUsername: '', account: 'x', password: 'y' }
+  assert.deepEqual(collectShopManageFieldErrors(form), collectShopManageFieldErrors(form))
+  assert.deepEqual(form, { groupId: 2, shopName: 'S', mallName: 'M', znUsername: '', account: 'x', password: 'y' })
+})
+
+test('test_task_096_shop_field_validators_boundary_empty_input', () => {
+  // 边界空值：空白账号/密码返回必填错误。
+  assert.equal(validateAccount('   '), '账号不能为空')
+  assert.equal(validatePassword(''), '密码不能为空')
+})
+
+test('test_task_096_shop_field_validators_boundary_single_item', () => {
+  // 边界单元素：单字段错误可独立定位。
+  const errors = collectShopManageFieldErrors({ groupId: null, shopName: 'S', mallName: 'M', znUsername: '', account: 'a', password: 'p' })
+  assert.equal(errors.groupId, '分组不能为空')
+  assert.equal('shopName' in errors, false)
+})
+
+test('test_task_096_shop_field_validators_boundary_limit_or_missing_field', () => {
+  // 边界上限/缺字段：超长自动化账号/空白商城被定位；长度上限边界放行。
+  assert.equal(validateZnUsernameLength(''), undefined)
+  assert.equal(validateZnUsernameLength('a'.repeat(128)), undefined)
+  assert.match(validateZnUsernameLength('b'.repeat(129)) || '', /128/)
+})
+
+test('test_task_096_shop_field_validators_invalid_input_rejected', () => {
+  // 异常输入：缺分组/空白店铺名均返回可操作错误。
+  assert.equal(validateGroupId(null), '分组不能为空')
+  assert.equal(validateGroupId(-1), '分组不能为空')
+  assert.equal(validateShopNameValue('  '), '店铺名称不能为空')
+})
+
+test('test_task_096_shop_field_validators_dependency_failure_returns_actionable_message', () => {
+  // 依赖失败/可操作：字段校验纯逻辑，无框架/http；错误文案与后端 NotBlank 一致。
+  const mod = readSource('src/pages/shop/shop-manage-field-validators.ts')
+  assert.equal(/axios|http\.|vue/.test(mod), false, '字段校验保持纯逻辑')
+  assert.match(mod, /不能为空/)
+})