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/identity-obj-proxy/src/index.js

@@ -0,0 +1,26 @@
+/* eslint-disable no-var, comma-dangle */
+var Reflect; // eslint-disable-line no-unused-vars
+var idObj;
+
+function checkIsNodeV6OrAbove() {
+  if (typeof process === 'undefined') {
+    return false;
+  }
+
+  return parseInt(process.versions.node.split('.')[0], 10) >= 6;
+}
+
+if (!checkIsNodeV6OrAbove()) {
+  Reflect = require('harmony-reflect'); // eslint-disable-line global-require
+}
+
+idObj = new Proxy({}, {
+  get: function getter(target, key) {
+    if (key === '__esModule') {
+      return false;
+    }
+    return key;
+  }
+});
+
+module.exports = idObj;