fix: order status dropdown could bypass confirm-gated cancel/refund

The status <select> on the order detail page let an admin jump
straight to 'cancelled'/'refunded' with no confirmation, bypassing the
dedicated cancel()/requestRefund() buttons that do confirm. It also
stayed editable after an order reached a terminal status, so it could
be moved backward out of cancelled/refunded.

- Dropdown options now exclude terminal statuses; reaching them
  requires the confirm-gated buttons.
- setStatus() guards against a terminal status slipping through
  regardless.
- Once an order is terminal (isTerminal(), already computed but
  unused), the dropdown and both action buttons are disabled.
- Same fix applied to the orders list page's bulk status dropdown,
  which had the identical gap.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/features/admin/orders/pages/admin-order-detail-page.component.html

@@ -46,14 +46,17 @@
     </div>
     <div class="card no-print">
       <h3>{{ 'adminOrders.changeStatus' | translate }}</h3>
-      <select [attr.aria-label]="'adminOrders.changeStatus' | translate" [ngModel]="order.status" (ngModelChange)="setStatus(order.id, $event)">
-        @for (status of statuses; track status) {
+      <select [attr.aria-label]="'adminOrders.changeStatus' | translate" [ngModel]="order.status" (ngModelChange)="setStatus(order.id, $event)" [disabled]="isTerminal()">
+        @for (status of selectableStatuses; track status) {
           <option [value]="status">{{ ('adminOrders.status.' + status) | translate }}</option>
         }
+        @if (isTerminal()) {
+          <option [value]="order.status">{{ ('adminOrders.status.' + order.status) | translate }}</option>
+        }
       </select>
       <div class="actions">
-        <app-button variant="secondary" size="sm" (click)="requestRefund(order.id)">{{ 'adminOrders.requestRefund' | translate }}</app-button>
-        <app-button variant="danger" size="sm" (click)="cancel(order.id)">{{ 'adminOrders.cancelOrder' | translate }}</app-button>
+        <app-button variant="secondary" size="sm" (click)="requestRefund(order.id)" [disabled]="isTerminal()">{{ 'adminOrders.requestRefund' | translate }}</app-button>
+        <app-button variant="danger" size="sm" (click)="cancel(order.id)" [disabled]="isTerminal()">{{ 'adminOrders.cancelOrder' | translate }}</app-button>
       </div>
     </div>
   </section>

src/app/features/admin/orders/pages/admin-order-detail-page.component.ts

@@ -30,6 +30,8 @@ export class AdminOrderDetailPageComponent {
   private readonly translate = inject(TranslateService);
 
   readonly statuses: AdminOrderStatus[] = ['pending', 'processing', 'shipped', 'delivered', 'cancelled', 'refunded'];
+  /** Terminal statuses are only reachable via the confirm-gated cancel()/requestRefund(), never the raw dropdown. */
+  readonly selectableStatuses: AdminOrderStatus[] = this.statuses.filter(status => !TERMINAL_STATUSES.includes(status));
   readonly workflowSteps = WORKFLOW_STEPS;
   readonly noteDraft = signal('');
   readonly internalNoteDraft = signal('');
@@ -74,6 +76,11 @@ export class AdminOrderDetailPageComponent {
   }
 
   setStatus(id: string, status: AdminOrderStatus): void {
+    if (TERMINAL_STATUSES.includes(status)) {
+      // Unreachable from the dropdown (options are filtered), but guard anyway
+      // since terminal transitions must always go through the confirm dialog.
+      return;
+    }
     this.facade.setStatus(id, status);
   }
 

src/app/features/admin/orders/pages/admin-orders-list-page.component.html

@@ -37,8 +37,8 @@
     <div class="bulk-actions">
       <span>{{ facade.selectedIds().length }} {{ 'adminProducts.selectedCount' | translate }}</span>
       <select [attr.aria-label]="'adminOrders.changeStatus' | translate" [ngModel]="bulkStatusValue()" (ngModelChange)="bulkStatusValue.set($event)">
-        @for (status of statuses; track status) {
-          @if (status !== 'all') { <option [value]="status">{{ ('adminOrders.status.' + status) | translate }}</option> }
+        @for (status of bulkSelectableStatuses; track status) {
+          <option [value]="status">{{ ('adminOrders.status.' + status) | translate }}</option>
         }
       </select>
       <app-button variant="secondary" size="sm" (click)="applyBulkStatus()">{{ 'adminOrders.applyStatus' | translate }}</app-button>

src/app/features/admin/orders/pages/admin-orders-list-page.component.ts

@@ -30,6 +30,8 @@ export class AdminOrdersListPageComponent {
   private readonly languageService = inject(LanguageService);
 
   readonly statuses = ['all', 'pending', 'processing', 'shipped', 'delivered', 'cancelled', 'refunded'] as const;
+  /** Bulk status change excludes terminal statuses - cancel/refund must go through the confirm-gated single-order flow. */
+  readonly bulkSelectableStatuses: AdminOrderStatus[] = ['pending', 'processing', 'shipped', 'delivered'];
   readonly allColumns = ALL_ORDER_COLUMNS;
   protected readonly columnsPanelOpen = signal(false);
   protected readonly bulkStatusValue = signal<AdminOrderStatus>('pending');