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/lucide-react/dist/esm/icons/feather.mjs

@@ -0,0 +1,17 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const Feather = createLucideIcon("Feather", [
+  [
+    "path",
+    { d: "M20.24 12.24a6 6 0 0 0-8.49-8.49L5 10.5V19h8.5z", key: "u4sw5n" }
+  ],
+  ["line", { x1: "16", x2: "2", y1: "8", y2: "22", key: "1c47m2" }],
+  ["line", { x1: "17.5", x2: "9", y1: "15", y2: "15", key: "2fj3pr" }]
+]);
+
+export { Feather as default };
+//# sourceMappingURL=feather.mjs.map