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/flask-conical-off.mjs

@@ -0,0 +1,23 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const FlaskConicalOff = createLucideIcon("FlaskConicalOff", [
+  [
+    "path",
+    {
+      d: "M10 10 4.72 20.55a1 1 0 0 0 .9 1.45h12.76a1 1 0 0 0 .9-1.45l-1.272-2.542",
+      key: "59ek9y"
+    }
+  ],
+  ["path", { d: "M10 2v2.343", key: "15t272" }],
+  ["path", { d: "M14 2v6.343", key: "sxr80q" }],
+  ["path", { d: "M8.5 2h7", key: "csnxdl" }],
+  ["path", { d: "M7 16h9", key: "t5njau" }],
+  ["line", { x1: "2", x2: "22", y1: "2", y2: "22", key: "a6p6uj" }]
+]);
+
+export { FlaskConicalOff as default };
+//# sourceMappingURL=flask-conical-off.mjs.map