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/babel-jest/build/loadBabelConfig.js

@@ -0,0 +1,27 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+Object.defineProperty(exports, 'loadPartialConfig', {
+  enumerable: true,
+  get: function () {
+    return _core().loadPartialConfig;
+  }
+});
+Object.defineProperty(exports, 'loadPartialConfigAsync', {
+  enumerable: true,
+  get: function () {
+    return _core().loadPartialConfigAsync;
+  }
+});
+
+function _core() {
+  const data = require('@babel/core');
+
+  _core = function () {
+    return data;
+  };
+
+  return data;
+}