fix(admin): P0 user-reported bugs - raw keys, table overflow, builder escape route

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

- Transactions: 'adminTransactions.flag'/'clearFlag' raw keys rendered on the fraud toggle button (missed by earlier audit because the key sits inside a ternary); added en/ru/hy strings with merchant wording ('Flag as suspicious')
- Table overflow on Customers/Transactions root-caused: app-table host is a grid item with default min-width:auto, so wide tables stretched their parent card instead of scrolling inside the wrapper; shared TableComponent now declares display:block/min-width:0/max-width:100% on its element selector (encapsulation None - :host would not match), fixing every admin table at once; verified in browser: cards contained, wrapper scrolls internally
- Builder trap root-caused: section editor pages (/:lang/edit/<section>) had zero routes to the backoffice - only a link back to the builder overview - so admins inside a section could not return to the dashboard; sidebar now has a persistent 'Back to dashboard' link (new builder.backToDashboard key, en/ru/hy); verified navigation lands on /ru/backoffice/dashboard

src/app/features/project-editor/pages/project-editor-page.component.html

@@ -8,6 +8,10 @@
       <span class="pi pi-arrow-left" aria-hidden="true"></span>
       {{ 'builder.appName' | translate }}
     </a>
+    <a class="project-editor-layout__dashboard-link" [routerLink]="dashboardRoute()">
+      <span class="pi pi-home" aria-hidden="true"></span>
+      {{ 'builder.backToDashboard' | translate }}
+    </a>
     <app-project-editor-nav (linkClicked)="closeMobileDrawer()" />
   </aside>
 

src/app/features/project-editor/pages/project-editor-page.component.scss

@@ -51,6 +51,28 @@
   }
 }
 
+.project-editor-layout__dashboard-link {
+  display: flex;
+  align-items: center;
+  gap: var(--space-xs);
+  padding: var(--space-sm);
+  margin-bottom: var(--space-md);
+  border-radius: var(--radius-sm);
+  color: var(--text-secondary);
+  font-size: 0.85rem;
+  text-decoration: none;
+
+  &:hover {
+    background: var(--bg-tertiary);
+    color: var(--text-primary);
+  }
+
+  &:focus-visible {
+    outline: 2px solid var(--primary-color);
+    outline-offset: 2px;
+  }
+}
+
 .project-editor-layout__content {
   min-width: 0;
   padding: var(--space-lg);

src/app/features/project-editor/pages/project-editor-page.component.ts

@@ -95,6 +95,9 @@ export class ProjectEditorPageComponent {
 
   readonly overviewRoute = computed(() => ['/', this.languageService.currentLanguage(), 'edit']);
 
+  /** Persistent escape hatch back to the admin dashboard - section editors previously had no route to the backoffice at all. */
+  readonly dashboardRoute = computed(() => ['/', this.languageService.currentLanguage(), 'backoffice', 'dashboard']);
+
   constructor() {
     this.facade.loadBootstrap();
     effect(() => {