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/clipboard-copy.mjs

@@ -0,0 +1,33 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const ClipboardCopy = createLucideIcon("ClipboardCopy", [
+  [
+    "rect",
+    {
+      width: "8",
+      height: "4",
+      x: "8",
+      y: "2",
+      rx: "1",
+      ry: "1",
+      key: "tgr4d6"
+    }
+  ],
+  [
+    "path",
+    {
+      d: "M8 4H6a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2v-2",
+      key: "4jdomd"
+    }
+  ],
+  ["path", { d: "M16 4h2a2 2 0 0 1 2 2v4", key: "3hqy98" }],
+  ["path", { d: "M21 14H11", key: "1bme5i" }],
+  ["path", { d: "m15 10-4 4 4 4", key: "5dvupr" }]
+]);
+
+export { ClipboardCopy as default };
+//# sourceMappingURL=clipboard-copy.mjs.map