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/brush.mjs

@@ -0,0 +1,25 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const Brush = createLucideIcon("Brush", [
+  [
+    "path",
+    {
+      d: "m9.06 11.9 8.07-8.06a2.85 2.85 0 1 1 4.03 4.03l-8.06 8.08",
+      key: "1styjt"
+    }
+  ],
+  [
+    "path",
+    {
+      d: "M7.07 14.94c-1.66 0-3 1.35-3 3.02 0 1.33-2.5 1.52-2 2.02 1.08 1.1 2.49 2.02 4 2.02 2.2 0 4-1.8 4-4.04a3.01 3.01 0 0 0-3-3.02z",
+      key: "z0l1mu"
+    }
+  ]
+]);
+
+export { Brush as default };
+//# sourceMappingURL=brush.mjs.map