Address PR review feedback

Author: data-douser

.github/workflows/copilot-setup-steps.yml

@@ -65,7 +65,7 @@ jobs:
       - name: Copilot Setup - Install xvfb and VS Code dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y xvfb libasound2 libgbm1 libgtk-3-0 libxshmfence1
+          sudo apt-get install -y xvfb libasound2t64 libgbm1 libgtk-3-0 libxshmfence1
 
       - name: Copilot Setup - Build server (extension dependency)
         run: npm run build -w server

extensions/vscode/scripts/download-vscode.js

@@ -20,6 +20,9 @@ try {
   const vscodeExecutablePath = await downloadAndUnzipVSCode(version);
   console.log(`✅ VS Code downloaded to: ${vscodeExecutablePath}`);
 } catch (error) {
-  console.error('❌ Failed to download VS Code:', error.message);
+  console.error(
+    '❌ Failed to download VS Code:',
+    error instanceof Error ? error.message : String(error),
+  );
   process.exit(1);
 }