fix: configure shorter user-data-dir to avoid macOS socket path limit

macOS has a 103 character limit for Unix socket paths. The nested directory
structure in GitHub Actions (mini-typescript-hero/mini-typescript-hero/mini-typescript-hero)
was exceeding this limit, causing ENOTSOCK errors.

Solution: Use /tmp/vscode-test-data as the VSCode test user data directory.

Author: JohannesHoppe

mini-typescript-hero/.vscode-test.mjs

@@ -2,4 +2,6 @@ import { defineConfig } from '@vscode/test-cli';
 
 export default defineConfig({
 	files: 'out/test/**/*.test.js',
+	// Use shorter user-data-dir to avoid macOS socket path length issues (103 char limit)
+	launchArgs: ['--user-data-dir=/tmp/vscode-test-data'],
 });