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/align-start-vertical.mjs

@@ -0,0 +1,20 @@
+/**
+ * lucide-react v0.0.1 - ISC
+ */
+
+import createLucideIcon from '../createLucideIcon.mjs';
+
+const AlignStartVertical = createLucideIcon("AlignStartVertical", [
+  [
+    "rect",
+    { width: "9", height: "6", x: "6", y: "14", rx: "2", key: "lpm2y7" }
+  ],
+  [
+    "rect",
+    { width: "16", height: "6", x: "6", y: "4", rx: "2", key: "rdj6ps" }
+  ],
+  ["path", { d: "M2 2v20", key: "1ivd8o" }]
+]);
+
+export { AlignStartVertical as default };
+//# sourceMappingURL=align-start-vertical.mjs.map