Update dependencies and clean up project structure. Add cloud.google.com/go/compute/metadata as an indirect requirement in go.mod. Remove unused files and update package.json for Vite and React plugins. Refactor Makefile for improved build process.

web/node_modules/mz/child_process.js

@@ -0,0 +1,8 @@
+
+require('thenify-all').withCallback(
+  require('child_process'),
+  exports, [
+    'exec',
+    'execFile',
+  ]
+)