add simple admin service

local-admin/public/src/features/asset-picker/mergeAssets.js

@@ -0,0 +1,5 @@
+export function mergeAssetPaths(currentAssets, uploadedAssets) {
+  return [...new Set([...uploadedAssets.map((asset) => asset.path), ...currentAssets])].sort((left, right) =>
+    left.localeCompare(right, 'ru'),
+  );
+}

local-admin/public/src/features/asset-picker/renderAssetOptions.js

@@ -0,0 +1,9 @@
+export function renderAssetOptions(assetOptions, assets) {
+  assetOptions.replaceChildren(
+    ...assets.map((asset) => {
+      const option = document.createElement('option');
+      option.value = asset;
+      return option;
+    }),
+  );
+}