refactor: update build scripts and add new server preparation scripts

- Replaced JavaScript files with ES module versions for server preparation and setup scripts.
- Introduced `prepare-server.mjs` for bundling server with Electron, enhancing dependency management.
- Added `rebuild-server-natives.cjs` for rebuilding native modules during the Electron packaging process.
- Updated `setup-e2e-fixtures.mjs` to create necessary directories and files for Playwright tests.
- Adjusted `package.json` scripts to reflect changes in file extensions and improve build process clarity.

apps/ui/scripts/setup-e2e-fixtures.mjs

@@ -0,0 +1,49 @@
+#!/usr/bin/env node
+
+/**
+ * Setup script for E2E test fixtures
+ * Creates the necessary test fixture directories and files before running Playwright tests
+ */
+
+import * as fs from "fs";
+import * as path from "path";
+import { fileURLToPath } from "url";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+// Resolve workspace root (apps/app/scripts -> workspace root)
+const WORKSPACE_ROOT = path.resolve(__dirname, "../../..");
+const FIXTURE_PATH = path.join(WORKSPACE_ROOT, "test/fixtures/projectA");
+const SPEC_FILE_PATH = path.join(FIXTURE_PATH, ".automaker/app_spec.txt");
+
+const SPEC_CONTENT = `<app_spec>
+  <name>Test Project A</name>
+  <description>A test fixture project for Playwright testing</description>
+  <tech_stack>
+    <item>TypeScript</item>
+    <item>React</item>
+  </tech_stack>
+</app_spec>
+`;
+
+function setupFixtures() {
+  console.log("Setting up E2E test fixtures...");
+  console.log(`Workspace root: ${WORKSPACE_ROOT}`);
+  console.log(`Fixture path: ${FIXTURE_PATH}`);
+
+  // Create fixture directory
+  const specDir = path.dirname(SPEC_FILE_PATH);
+  if (!fs.existsSync(specDir)) {
+    fs.mkdirSync(specDir, { recursive: true });
+    console.log(`Created directory: ${specDir}`);
+  }
+
+  // Create app_spec.txt
+  fs.writeFileSync(SPEC_FILE_PATH, SPEC_CONTENT);
+  console.log(`Created fixture file: ${SPEC_FILE_PATH}`);
+
+  console.log("E2E test fixtures setup complete!");
+}
+
+setupFixtures();