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/sun.mjs

@@ -0,0 +1,20 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const Sun = createLucideIcon("Sun", [
+  ["circle", { cx: "12", cy: "12", r: "4", key: "4exip2" }],
+  ["path", { d: "M12 2v2", key: "tus03m" }],
+  ["path", { d: "M12 20v2", key: "1lh1kg" }],
+  ["path", { d: "m4.93 4.93 1.41 1.41", key: "149t6j" }],
+  ["path", { d: "m17.66 17.66 1.41 1.41", key: "ptbguv" }],
+  ["path", { d: "M2 12h2", key: "1t8f8n" }],
+  ["path", { d: "M20 12h2", key: "1q8mjw" }],
+  ["path", { d: "m6.34 17.66-1.41 1.41", key: "1m8zz5" }],
+  ["path", { d: "m19.07 4.93-1.41 1.41", key: "1shlcs" }]
+]);
+
+export { Sun as default };
+//# sourceMappingURL=sun.mjs.map