Initial commit: Developer Tools MVP with visual editor

- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality

node_modules/jiti/lib/index.js

@@ -0,0 +1,15 @@
+function onError(err) {
+  throw err; /* ↓ Check stack trace ↓ */
+}
+
+module.exports = function jiti(filename, opts) {
+  const jiti = require("../dist/jiti");
+
+  opts = { onError, ...opts };
+
+  if (!opts.transform) {
+    opts.transform = require("../dist/babel");
+  }
+
+  return jiti(filename, opts);
+};