feat: unify invite flow with referral ref

assets/admin/src/pages/tools/ToolsUpdate.vue

@@ -92,7 +92,7 @@ const guides = [
   { key: 'cdn', title: '静态资源与 CDN', desc: '核对前端资源地址与缓存策略', url: '#/global/common' },
   { key: 'ip-geo', title: 'IP 归属地', desc: '验证 IP 查询服务与密钥配置', url: '#/extensions/ip' },
   { key: 'payment', title: '支付与会员', desc: '核对网关、会员与充值配置', url: '#/payment/gateway' },
-  { key: 'credits', title: '积分与签到', desc: '检查积分规则、签到与邀请奖励', url: '#/users/signin' },
+  { key: 'credits', title: '积分与签到', desc: '检查积分规则、签到与推广奖励', url: '#/users/signin' },
   { key: 'badge', title: '等级与徽章', desc: '维护等级、认证与徽章体系', url: '#/users/badge' },
 ]