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/heart-handshake.mjs

@@ -0,0 +1,27 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const HeartHandshake = createLucideIcon("HeartHandshake", [
+  [
+    "path",
+    {
+      d: "M19 14c1.49-1.46 3-3.21 3-5.5A5.5 5.5 0 0 0 16.5 3c-1.76 0-3 .5-4.5 2-1.5-1.5-2.74-2-4.5-2A5.5 5.5 0 0 0 2 8.5c0 2.3 1.5 4.05 3 5.5l7 7Z",
+      key: "c3ymky"
+    }
+  ],
+  [
+    "path",
+    {
+      d: "M12 5 9.04 7.96a2.17 2.17 0 0 0 0 3.08v0c.82.82 2.13.85 3 .07l2.07-1.9a2.82 2.82 0 0 1 3.79 0l2.96 2.66",
+      key: "12sd6o"
+    }
+  ],
+  ["path", { d: "m18 15-2-2", key: "60u0ii" }],
+  ["path", { d: "m15 18-2-2", key: "6p76be" }]
+]);
+
+export { HeartHandshake as default };
+//# sourceMappingURL=heart-handshake.mjs.map