fix(web): 本地优先保存与 design 页体验修复

- 保存先写本地缓存，登录后可选云端同步；退出登录不再因文件操作跳转登录

- 修复 Layui 遮罩残留、design2 保存后线条、toast 被 finally 提前关闭

- 保存过程恢复 loading spinner；成功提示 2.5 秒

- 云端 payload 瘦身与体积超限提示；后端 schema 迁移与 FileService 容错

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

frontend-web/pages/admin/assets/js/views/users.js

@@ -8,6 +8,7 @@
   var Filter = function () { return window.AdminFilter; };
   var Menu = function () { return window.AdminMenu; };
   var Router = function () { return window.AdminRouter; };
+  var Form = function () { return window.AdminForm; };
 
   function buildQuery() {
     var st = State().users;
@@ -57,7 +58,7 @@
         ? formField('管理级别', '<div id="adminLevelField" style="display:none"><select id="ucAdminLevel" class="soon-input soon-input--sm">' +
           adminLevelOptions('ops') + '</select></div>', '运营管理员不可访问设置、审计与支付密钥')
         : '') +
-      '<button type="button" class="soon-btn soon-btn--sm" id="adminModalSave">创建</button></div>';
+      Form().actions('创建', 'adminModalSave') + '</div>';
     Ui().openFormModal('新增用户', form, function () {
       var email = Ui().el('ucEmail').value.trim();
       var pwd = Ui().el('ucPwd').value;
@@ -76,7 +77,7 @@
       }
       return Api().postJson('users', body).then(function (r) {
         if (r) {
-          layer.closeAll();
+          soonLayerDismiss();
           soonToast('用户已创建', 'success');
           render();
         }
@@ -95,7 +96,7 @@
         ? formField('管理级别', '<div id="adminLevelField"><select id="ueAdminLevel" class="soon-input soon-input--sm">' +
           adminLevelOptions(level) + '</select></div>', '仅对管理员账号生效')
         : '') +
-      '<button type="button" class="soon-btn soon-btn--sm" id="adminModalSave">保存</button></div>';
+      Form().actions('保存', 'adminModalSave') + '</div>';
     Ui().openFormModal('编辑用户 #' + user.id, form, function () {
       var body = {
         email: Ui().el('ueEmail').value.trim(),
@@ -107,7 +108,7 @@
       }
       return Api().putJson('users/' + user.id, body).then(function (r) {
         if (r) {
-          layer.closeAll();
+          soonLayerDismiss();
           soonToast('用户信息已更新', 'success');
           render();
         }
@@ -121,7 +122,7 @@
     var form = '<div class="soon-admin-form">' +
       formField('新密码', '<input id="upPwd" type="password" class="soon-input soon-input--sm" autocomplete="new-password" placeholder="至少 8 位">') +
       formField('确认密码', '<input id="upPwd2" type="password" class="soon-input soon-input--sm" autocomplete="new-password">') +
-      '<button type="button" class="soon-btn soon-btn--sm" id="adminModalSave">重置密码</button></div>';
+      Form().actions('重置密码', 'adminModalSave') + '</div>';
     Ui().openFormModal('重置密码', form, function () {
       var p1 = Ui().el('upPwd').value;
       var p2 = Ui().el('upPwd2').value;
@@ -135,7 +136,7 @@
       }
       return Api().postJson('users/' + userId + '/password', { password: p1 }).then(function (r) {
         if (r) {
-          layer.closeAll();
+          soonLayerDismiss();
           soonToast('密码已重置', 'success');
         }
       });
@@ -153,7 +154,7 @@
         formField('套餐', '<select id="usPlan" class="soon-input soon-input--sm">' + opts + '</select>') +
         formField('有效天数', '<input id="usDays" type="number" min="0" class="soon-input soon-input--sm" placeholder="留空则用套餐默认天数">') +
         '<p class="soon-admin-form-hint">选择免费版将取消当前有效会员。</p>' +
-        '<button type="button" class="soon-btn soon-btn--sm" id="adminModalSave">保存</button></div>';
+        Form().actions('保存', 'adminModalSave') + '</div>';
       Ui().openFormModal('设置会员', form, function () {
         var planSel = Ui().el('usPlan');
         var daysVal = Ui().el('usDays').value.trim();
@@ -161,7 +162,7 @@
         if (daysVal) body.days = parseInt(daysVal, 10);
         return Api().postJson('users/' + userId + '/subscription', body).then(function (r) {
           if (r) {
-            layer.closeAll();
+            soonLayerDismiss();
             soonToast('会员已更新', 'success');
             render();
           }