feat: License 支持筛选多选批量删除

仅已吊销或已过期可删，有效授权自动跳过；单条删除同步限制。

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

frontend/src/api/license.js

@@ -22,6 +22,10 @@ export function deleteLicense(id) {
   return request({ url: `/licenses/${id}`, method: 'delete' })
 }
 
+export function batchDeleteLicenses(ids) {
+  return request({ url: '/licenses/batch-delete', method: 'post', data: { ids } })
+}
+
 export function renewLicense(id, duration) {
   return request({ url: `/licenses/${id}/renew`, method: 'post', data: { duration } })
 }