add simple admin service

local-admin/public/src/entities/asset/api.js

@@ -0,0 +1,16 @@
+import { fetchJson } from '../../shared/api/http.js';
+
+export async function getAssets() {
+  const response = await fetchJson('/api/assets');
+  return response.assets;
+}
+
+export async function uploadAsset({ dataUrl, fileName }) {
+  const response = await fetchJson('/api/assets', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ dataUrl, fileName }),
+  });
+
+  return response.asset;
+}