feat(sms): align provider and verification flow

assets/admin/src/api/modules/users.js

@@ -5,6 +5,7 @@ export const usersApiMethods = {
 
   getAuthSettings() { return this.request('/settings/auth') },
   saveAuthSettings(data) { return this.request('/settings/auth', { method: 'POST', body: JSON.stringify(data) }) },
+  testSms(phone) { return this.request('/sms/test', { method: 'POST', body: JSON.stringify({ phone }) }) },
 
   getNotificationSettings() { return this.request('/settings/notifications') },
   saveNotificationSettings(data) { return this.request('/settings/notifications', { method: 'POST', body: JSON.stringify(data) }) },