fix(build): pass --experimental-strip-types when spawning .mts/.ts node scripts

Node 22.15.x requires this flag to load TypeScript files directly. VS Code
1.118.1 introduced .mts extension build scripts (esbuild.notebook.mts etc.)
that are spawned by compile-extension-media without it. Also pre-create the
React out dir before rsync in buildreact to avoid CI failure when the out/vs
tree hasn't been created yet.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Tajudeen

build/lib/extensions.ts

@@ -161,7 +161,11 @@ function fromLocalEsbuild(extensionPath: string, esbuildConfigFileName: string):
 
 	// Run esbuild, then collect the files
 	new Promise<void>((resolve, reject) => {
-		const proc = cp.execFile(process.argv[0], [esbuildScript], { cwd: extensionPath }, (error, _stdout, stderr) => {
+		// Node 22.15.x requires --experimental-strip-types to load .mts/.ts files directly
+		const nodeArgs = (esbuildScript.endsWith('.mts') || esbuildScript.endsWith('.ts'))
+			? ['--experimental-strip-types', esbuildScript]
+			: [esbuildScript];
+		const proc = cp.execFile(process.argv[0], nodeArgs, { cwd: extensionPath }, (error, _stdout, stderr) => {
 			if (error) {
 				return reject(error);
 			}
@@ -595,7 +599,10 @@ export async function esbuildExtensions(taskName: string, isWatch: boolean, scri
 
 	const tasks = scripts.map(({ script, outputRoot }) => {
 		return new Promise<void>((resolve, reject) => {
-			const args = [script];
+			// Node 22.15.x requires --experimental-strip-types to load .mts/.ts files directly
+			const args = (script.endsWith('.mts') || script.endsWith('.ts'))
+				? ['--experimental-strip-types', script]
+				: [script];
 			if (isWatch) {
 				args.push('--watch');
 			}

package.json

@@ -87,7 +87,7 @@
     "install-local-component-explorer": "npm install ../vscode-packages/js-component-explorer/dist/vscode-component-explorer-0.1.0.tgz ../vscode-packages/js-component-explorer/dist/vscode-component-explorer-cli-0.1.0.tgz --no-save && cd build/rspack && npm install ../../../vscode-packages/js-component-explorer/dist/vscode-component-explorer-webpack-plugin-0.1.0.tgz --no-save && cd ../vite && npm install ../../../vscode-packages/js-component-explorer/dist/vscode-component-explorer-vite-plugin-0.1.0.tgz --no-save",
     "symlink-local-component-explorer": "npm install ../vscode-packages/js-component-explorer/packages/explorer ../vscode-packages/js-component-explorer/packages/cli --no-save && cd build/rspack && npm install ../../../vscode-packages/js-component-explorer/packages/webpack-plugin ../../../vscode-packages/js-component-explorer/packages/explorer --no-save && cd ../vite && npm install ../../../vscode-packages/js-component-explorer/packages/vite-plugin ../../../vscode-packages/js-component-explorer/packages/explorer --no-save",
     "install-latest-component-explorer": "npm install @vscode/component-explorer@next @vscode/component-explorer-cli@next && cd build/rspack && npm install @vscode/component-explorer-webpack-plugin@next @vscode/component-explorer@next && cd ../vite && npm install @vscode/component-explorer-vite-plugin@next @vscode/component-explorer@next",
-    "buildreact": "cd ./src/vs/workbench/contrib/cortexide/browser/react/ && node build.js && cd ../../../../../../../ && rsync -a src/vs/workbench/contrib/cortexide/browser/react/out/ out/vs/workbench/contrib/cortexide/browser/react/out/",
+    "buildreact": "cd ./src/vs/workbench/contrib/cortexide/browser/react/ && node build.js && cd ../../../../../../../ && mkdir -p out/vs/workbench/contrib/cortexide/browser/react/out && rsync -a src/vs/workbench/contrib/cortexide/browser/react/out/ out/vs/workbench/contrib/cortexide/browser/react/out/",
     "watchreact": "cd ./src/vs/workbench/contrib/cortexide/browser/react/ && node build.js --watch && cd ../../../../../../../"
   },
   "dependencies": {