feat(web): código de cuenta con separadores de segmento, ramas vacías sin flecha y Cuenta de mayor con formato

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

apps/web/src/app/layout/main-layout.ts

@@ -1,5 +1,6 @@
 import { ChangeDetectionStrategy, Component, inject, signal } from '@angular/core';
 import { RouterLink, RouterLinkActive, RouterOutlet } from '@angular/router';
+import { AccountSegmentsService } from '../core/sl/account-segments';
 import { AuthService } from '../core/auth/auth.service';
 import { SessionStore } from '../core/auth/session.store';
 import { MenuService } from '../core/menu/menu.service';
@@ -19,6 +20,11 @@ export class MainLayout {
   protected readonly menu = inject(MenuService);
 
   protected readonly sidebarOpen = signal(false);
+  private readonly segments = inject(AccountSegmentsService);
+
+  constructor() {
+    void this.segments.ensureLoaded();
+  }
   private readonly collapsed = signal<ReadonlySet<string>>(new Set());
 
   protected isOpen(moduleId: string): boolean {