arch(sprint1): centralize startup in platform runtime

src/app/pages/public/platform-home.component.ts

@@ -30,7 +30,6 @@ export class PlatformHomeComponent {
   private readonly router = inject(Router);
 
   constructor(private readonly websiteRuntime: WebsiteRuntimeFacade) {
-    this.websiteRuntime.initializeRuntime();
     this.websiteRuntime.getPageRenderModelForUrl(this.router.url).subscribe({
       next: (model) => {
         this.model.set(model);