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/shower-head.mjs

@@ -0,0 +1,21 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const ShowerHead = createLucideIcon("ShowerHead", [
+  ["path", { d: "m4 4 2.5 2.5", key: "uv2vmf" }],
+  ["path", { d: "M13.5 6.5a4.95 4.95 0 0 0-7 7", key: "frdkwv" }],
+  ["path", { d: "M15 5 5 15", key: "1ag8rq" }],
+  ["path", { d: "M14 17v.01", key: "eokfpp" }],
+  ["path", { d: "M10 16v.01", key: "14uyyl" }],
+  ["path", { d: "M13 13v.01", key: "1v1k97" }],
+  ["path", { d: "M16 10v.01", key: "5169yg" }],
+  ["path", { d: "M11 20v.01", key: "cj92p8" }],
+  ["path", { d: "M17 14v.01", key: "11cswd" }],
+  ["path", { d: "M20 11v.01", key: "19e0od" }]
+]);
+
+export { ShowerHead as default };
+//# sourceMappingURL=shower-head.mjs.map