refactor(品牌工具页): 历史批量删除抽为 runBatchDelete

16 个品牌页逐字相同的 batchDeleteHistory 循环（逐条删除 + 容忍个别失败计数）
收敛为 shared/utils/batch-delete.ts 的 runBatchDelete；各页仅保留自己的删除调用
与提示文案。补单测 4 例（空列表 / 全成功 / 部分失败继续 / 非 Error 异常）。

净减约 120 行；vue-tsc 构建与 699 个前端单测通过。

frontend-vue/tests/batch-delete.test.ts

@@ -0,0 +1,42 @@
+import { test } from 'node:test'
+import assert from 'node:assert/strict'
+import { runBatchDelete } from '../src/shared/utils/batch-delete.ts'
+
+test('空列表不调用删除并返回 0', async () => {
+  let calls = 0
+  const result = await runBatchDelete([], async () => {
+    calls += 1
+  })
+
+  assert.deepEqual(result, { total: 0, failed: 0 })
+  assert.equal(calls, 0)
+})
+
+test('全部成功时 failed 为 0', async () => {
+  const seen: number[] = []
+  const result = await runBatchDelete([1, 2, 3], async (n) => {
+    seen.push(n)
+  })
+
+  assert.deepEqual(result, { total: 3, failed: 0 })
+  assert.deepEqual(seen, [1, 2, 3])
+})
+
+test('个别失败继续删其余并计数', async () => {
+  const seen: number[] = []
+  const result = await runBatchDelete([1, 2, 3, 4], async (n) => {
+    seen.push(n)
+    if (n === 2 || n === 4) throw new Error('删除失败')
+  })
+
+  assert.deepEqual(result, { total: 4, failed: 2 })
+  assert.deepEqual(seen, [1, 2, 3, 4], '失败后应继续处理后续条目')
+})
+
+test('抛出非 Error 也计入失败', async () => {
+  const result = await runBatchDelete(['a'], async () => {
+    throw 'boom'
+  })
+
+  assert.deepEqual(result, { total: 1, failed: 1 })
+})