限制授权码仅按查看操作显示

管理配置继续使用弹窗，管理员列表不再自动显示新生成的授权码，只有点击查看授权码并完成验证后显示对应账号的授权码。

frontend/src/views/components/SystemNotification/SystemNotification.js

@@ -229,7 +229,8 @@ export function usePage(props = {}) {
         user_id: target.user_id, version: target.version
       })))
       if (disposed) return
-      if (sequence === secretSequence) showSecret(data.code, target.account)
+      if (sequence === secretSequence && (!manager.value || props.userId)) showSecret(data.code, target.account)
+      else clearSecret()
       await Promise.all([loadStatus(), loadAccounts()])
     } catch (cause) { showError(cause) }
     finally { submitting.value = false }

frontend/src/views/components/SystemNotification/SystemNotification.vue

@@ -84,7 +84,7 @@
         </div>
         <p v-if="!status.account_available" class="notification-warning">账号已禁用或尚未修改临时密码，不能生成或使用通知凭据。</p>
 
-        <div v-if="status.configured" class="notification-credential">
+        <div v-if="status.configured && (!manager || userId)" class="notification-credential">
           <span class="notification-credential-label">通知发信凭据</span>
           <template v-if="secretVisible && secret">
             <code class="notification-credential-code">{{ secret }}</code>