feat: 商业认证操作全部记入审计日志

- 申请认证、通过、拒绝、直接开通、撤销都记录audit_log
- 操作日志增加商业认证筛选
- ACTION_MAP增加5种商业认证操作的中文映射

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/views/AuditLog.vue

@@ -91,6 +91,11 @@ const ACTION_MAP = {
   update_user: '修改用户',
   delete_user: '删除用户',
   undo_delete_user: '恢复用户',
+  business_apply: '申请商业认证',
+  approve_business: '通过商业认证',
+  reject_business: '拒绝商业认证',
+  grant_business: '开通商业认证',
+  revoke_business: '撤销商业认证',
 }
 
 const actionTypes = [
@@ -99,6 +104,7 @@ const actionTypes = [
   { value: 'user', label: '用户' },
   { value: 'tag', label: '标签' },
   { value: 'adopt', label: '审核' },
+  { value: 'business', label: '商业认证' },
 ]
 
 const targetTypes = [