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/walker/package.json

@@ -0,0 +1,27 @@
+{
+  "name": "walker",
+  "description": "A simple directory tree walker.",
+  "version": "1.0.8",
+  "homepage": "https://github.com/daaku/nodejs-walker",
+  "author": "Naitik Shah <n@daaku.org>",
+  "keywords": [
+    "utils",
+    "fs",
+    "filesystem"
+  ],
+  "main": "lib/walker",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/daaku/nodejs-walker"
+  },
+  "scripts": {
+    "test": "NODE_PATH=./lib mocha --ui exports"
+  },
+  "dependencies": {
+    "makeerror": "1.0.12"
+  },
+  "devDependencies": {
+    "mocha": "9.1.3"
+  },
+  "license": "Apache-2.0"
+}