feature: Create BaseFontStore class with Tanstack query logic and FontshareStore, GoogleFontsStore based on it

src/entities/Font/model/store/googleFontsStore.svelte.ts

@@ -0,0 +1,27 @@
+import type { GoogleFontsParams } from '../../api';
+import { fetchGoogleFontsQuery } from '../services';
+import type { UnifiedFont } from '../types';
+import { BaseFontStore } from './baseFontStore.svelte';
+
+/**
+ * Google Fonts store wrapping TanStack Query with runes
+ */
+export class GoogleFontsStore extends BaseFontStore<GoogleFontsParams> {
+    constructor(initialParams: GoogleFontsParams = {}) {
+        super(initialParams);
+    }
+
+    protected getQueryKey(params: GoogleFontsParams) {
+        return ['googleFonts', params] as const;
+    }
+
+    protected async fetchFn(params: GoogleFontsParams): Promise<UnifiedFont[]> {
+        return fetchGoogleFontsQuery(params);
+    }
+}
+
+export function createFontshareStore(params: GoogleFontsParams = {}) {
+    return new GoogleFontsStore(params);
+}
+
+export const googleFontsStore = new GoogleFontsStore();