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/thermometer-snowflake.mjs

@@ -0,0 +1,17 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const ThermometerSnowflake = createLucideIcon("ThermometerSnowflake", [
+  ["path", { d: "M2 12h10", key: "19562f" }],
+  ["path", { d: "M9 4v16", key: "81ygyz" }],
+  ["path", { d: "m3 9 3 3-3 3", key: "1sas0l" }],
+  ["path", { d: "M12 6 9 9 6 6", key: "pfrgxu" }],
+  ["path", { d: "m6 18 3-3 1.5 1.5", key: "1e277p" }],
+  ["path", { d: "M20 4v10.54a4 4 0 1 1-4 0V4a2 2 0 0 1 4 0Z", key: "iof6y5" }]
+]);
+
+export { ThermometerSnowflake as default };
+//# sourceMappingURL=thermometer-snowflake.mjs.map