feat(web): 统一平台管理员判定与 AI 工作台申请预览动作接入

- authUser 抽出 resolveAuthUserAdminFlag，统一 isAdmin 解析（含 superadmin、role_codes、中英文角色名），accessControl 复用同一逻辑
- 登录态、应用外壳路由、系统状态接入统一管理员判定，LoginView 与相关 composable 配套调整
- AI 工作台申请提交改为调用新的 /application-preview-action 接口，草稿保存仍走 orchestrator；预审模型补充重叠冲突提示与阻断判断
- 同步更新 accessControl/api-request/ai 预览动作等前端测试

web/src/assets/styles/components/personal-workbench-ai-mode.css

@@ -1556,12 +1556,28 @@
   cursor: pointer;
 }
 
+.application-preview-row.is-disabled {
+  cursor: wait;
+}
+
+.application-preview-row.is-disabled .application-preview-label,
+.application-preview-row.is-disabled .application-preview-value {
+  background: rgba(248, 250, 252, 0.84);
+  color: #64748b;
+}
+
 .application-preview-row.editable:hover,
 .application-preview-row.editable:hover .application-preview-label,
 .application-preview-row.editable:hover .application-preview-value {
   background: rgba(239, 246, 255, 0.58);
 }
 
+.application-preview-row.is-disabled:hover,
+.application-preview-row.is-disabled:hover .application-preview-label,
+.application-preview-row.is-disabled:hover .application-preview-value {
+  background: rgba(248, 250, 252, 0.84);
+}
+
 .application-preview-row.editable:focus-visible {
   z-index: 1;
   outline: 2px solid rgba(37, 99, 235, 0.42);
@@ -1655,6 +1671,12 @@
   transform: translateY(-1px);
 }
 
+.application-preview-edit-btn:disabled {
+  cursor: wait;
+  opacity: 0.46;
+  transform: none;
+}
+
 .application-preview-footer {
   color: #334155;
   font-size: 15px;
@@ -1748,11 +1770,17 @@
     transform 160ms ease;
 }
 
-.workbench-ai-suggested-actions button:hover {
+.workbench-ai-suggested-actions button:hover:not(:disabled) {
   transform: translateY(-1px);
   background: #eff6ff;
 }
 
+.workbench-ai-suggested-actions button:disabled {
+  cursor: wait;
+  opacity: 0.6;
+  transform: none;
+}
+
 .workbench-ai-message-actions {
   display: flex;
   align-items: center;
@@ -1940,6 +1968,12 @@
   box-shadow: 0 12px 22px rgba(220, 38, 38, 0.2);
 }
 
+.workbench-ai-confirm-actions .primary {
+  background: #2563eb;
+  color: #fff;
+  box-shadow: 0 12px 22px rgba(37, 99, 235, 0.2);
+}
+
 .workbench-ai-confirm-fade-enter-active,
 .workbench-ai-confirm-fade-leave-active {
   transition: opacity 180ms ease;