refactor: finalize bootstrap-driven layout and widget runtime

src/app/shared/models/config/bootstrap-config.model.ts

@@ -2,6 +2,8 @@ import { ApiEndpointsConfig } from './api-endpoints.model';
 import { BrandingConfig } from './branding.model';
 import { CompanyConfig } from './company.model';
 import { FeatureFlagsConfig } from './feature-flags.model';
+import { FooterConfig } from './footer-config.model';
+import { PlatformLayoutConfig } from './layout.model';
 import { LocalizationConfig } from './localization.model';
 import { NavigationConfig } from './navigation.model';
 import { PageConfig } from './page.model';
@@ -10,6 +12,7 @@ import { SeoConfig } from './seo.model';
 import { StaticPagesConfig } from './static-page.model';
 import { TenantConfig } from './tenant.model';
 import { ThemeConfig } from './theme.model';
+import { WidgetRegistryConfig } from './widget-registry.model';
 
 export interface BootstrapConfig {
   schemaVersion: string;
@@ -23,7 +26,10 @@ export interface BootstrapConfig {
   localization: LocalizationConfig;
   seo: SeoConfig;
   permissions: PermissionsConfig;
+  layout?: PlatformLayoutConfig;
   navigation: NavigationConfig;
+  footer?: FooterConfig;
   pages: PageConfig[];
   staticPages?: StaticPagesConfig;
+  widgetRegistry?: WidgetRegistryConfig;
 }