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/mails.mjs

@@ -0,0 +1,17 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const Mails = createLucideIcon("Mails", [
+  [
+    "rect",
+    { width: "16", height: "13", x: "6", y: "4", rx: "2", key: "1drq3f" }
+  ],
+  ["path", { d: "m22 7-7.1 3.78c-.57.3-1.23.3-1.8 0L6 7", key: "xn252p" }],
+  ["path", { d: "M2 8v11c0 1.1.9 2 2 2h14", key: "n13cji" }]
+]);
+
+export { Mails as default };
+//# sourceMappingURL=mails.mjs.map