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/helping-hand.mjs

@@ -0,0 +1,19 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const HelpingHand = createLucideIcon("HelpingHand", [
+  [
+    "path",
+    {
+      d: "m3 15 5.12-5.12A3 3 0 0 1 10.24 9H13a2 2 0 1 1 0 4h-2.5m4-.68 4.17-4.89a1.88 1.88 0 0 1 2.92 2.36l-4.2 5.94A3 3 0 0 1 14.96 17H9.83a2 2 0 0 0-1.42.59L7 19",
+      key: "nitrv7"
+    }
+  ],
+  ["path", { d: "m2 14 6 6", key: "g6j1uo" }]
+]);
+
+export { HelpingHand as default };
+//# sourceMappingURL=helping-hand.mjs.map