feat(search): add Search Intelligence module

src/app/core/search/models/search-state.model.ts

@@ -1 +1,27 @@
-export * from '../../../features/search/models/search-state.model';
+import { CatalogLayoutMode } from '../../products/models/catalog-experience.model';
+import { ProductSort } from '../../products/models/product-domain.model';
+import { SearchFilterState } from './search.model';
+
+export interface SearchState {
+	text: string;
+	sort: ProductSort | 'discount';
+	layout: CatalogLayoutMode;
+	page: number;
+	pageSize: number;
+	filters: SearchFilterState;
+}
+
+export function createInitialSearchState(pageSize = 24): SearchState {
+	return {
+		text: '',
+		sort: 'relevance',
+		layout: 'grid',
+		page: 1,
+		pageSize,
+		filters: {
+			values: {},
+			ranges: {},
+			toggles: {},
+		},
+	};
+}