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/helper-validator-option/lib/index.js

@@ -0,0 +1,21 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+Object.defineProperty(exports, "OptionValidator", {
+  enumerable: true,
+  get: function () {
+    return _validator.OptionValidator;
+  }
+});
+Object.defineProperty(exports, "findSuggestion", {
+  enumerable: true,
+  get: function () {
+    return _findSuggestion.findSuggestion;
+  }
+});
+var _validator = require("./validator.js");
+var _findSuggestion = require("./find-suggestion.js");
+
+//# sourceMappingURL=index.js.map