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/sofa.mjs

@@ -0,0 +1,22 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const Sofa = createLucideIcon("Sofa", [
+  ["path", { d: "M20 9V6a2 2 0 0 0-2-2H6a2 2 0 0 0-2 2v3", key: "1dgpiv" }],
+  [
+    "path",
+    {
+      d: "M2 11v5a2 2 0 0 0 2 2h16a2 2 0 0 0 2-2v-5a2 2 0 0 0-4 0v2H6v-2a2 2 0 0 0-4 0Z",
+      key: "u5qfb7"
+    }
+  ],
+  ["path", { d: "M4 18v2", key: "jwo5n2" }],
+  ["path", { d: "M20 18v2", key: "1ar1qi" }],
+  ["path", { d: "M12 4v9", key: "oqhhn3" }]
+]);
+
+export { Sofa as default };
+//# sourceMappingURL=sofa.mjs.map