fix(settings): offer the portal unlock row in fail-closed mode

When the lock store cannot be read every portal category is withheld
but no locked ids are known, so the rail showed no "Enter PIN to show"
row. It now shows the row without a count in that state.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libs/workspace/shell/feature/src/lib/workspace-context-panel/workspace-context-panel.component.html

@@ -214,7 +214,7 @@
         }
     }
 
-    @if (withheldCategoryCount() > 0) {
+    @if (withheldCategoryCount() > 0 || withholdsAllCategories()) {
         <button
             type="button"
             class="context-locked-row"
@@ -225,8 +225,10 @@
             <mat-icon>lock</mat-icon>
             <span class="context-locked-row__label">
                 {{
-                    'PARENTAL_LOCK.LOCKED_CATEGORIES_ROW'
-                        | translate: { count: withheldCategoryCount() }
+                    withholdsAllCategories()
+                        ? ('PARENTAL_LOCK.LOCKED_COUNT' | translate)
+                        : ('PARENTAL_LOCK.LOCKED_CATEGORIES_ROW'
+                          | translate: { count: withheldCategoryCount() })
                 }}
             </span>
             <span class="context-locked-row__hint">

libs/workspace/shell/feature/src/lib/workspace-context-panel/workspace-context-panel.component.spec.ts

@@ -906,6 +906,27 @@ describe('WorkspaceContextPanelComponent', () => {
         });
     });
 
+    it('offers the unlock row in fail-closed mode, when no locked ids are known', () => {
+        const parentalLock = TestBed.inject(ParentalLockService);
+        Object.defineProperty(parentalLock, 'withholdsEverything', {
+            configurable: true,
+            value: signal(true),
+        });
+        fixture.componentRef.setInput('context', {
+            provider: 'stalker',
+            playlistId: 'stalker-1',
+        });
+        fixture.componentRef.setInput('section', 'itv');
+        fixture.detectChanges();
+
+        expect(fixture.componentInstance.withheldCategoryCount()).toBe(0);
+        expect(
+            fixture.nativeElement.querySelector(
+                '[data-test-id="context-locked-categories"]'
+            )
+        ).not.toBeNull();
+    });
+
     describe('Stalker lock dialog', () => {
         function enableLock(): void {
             const parentalLock = TestBed.inject(ParentalLockService);

libs/workspace/shell/feature/src/lib/workspace-context-panel/workspace-context-panel.component.ts

@@ -233,6 +233,16 @@ export class WorkspaceContextPanelComponent {
         }
         return 0;
     });
+    /**
+     * Fail-closed mode (the lock store could not be read): every category
+     * is withheld, but which ones are locked is unknown, so the count above
+     * is zero. The rail still offers the unlock row, without a count.
+     */
+    readonly withholdsAllCategories = computed(
+        () =>
+            (this.isXtreamCategories() || this.isStalkerCategories()) &&
+            this.parentalLock.withholdsEverything()
+    );
     readonly xtreamStatusText = computed(() => {
         if (
             !this.isXtreamCategories() ||