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/uri-js/dist/esnext/schemes/urn-uuid.js

@@ -0,0 +1,23 @@
+const UUID = /^[0-9A-Fa-f]{8}(?:\-[0-9A-Fa-f]{4}){3}\-[0-9A-Fa-f]{12}$/;
+const UUID_PARSE = /^[0-9A-Fa-f\-]{36}/;
+//RFC 4122
+const handler = {
+    scheme: "urn:uuid",
+    parse: function (urnComponents, options) {
+        const uuidComponents = urnComponents;
+        uuidComponents.uuid = uuidComponents.nss;
+        uuidComponents.nss = undefined;
+        if (!options.tolerant && (!uuidComponents.uuid || !uuidComponents.uuid.match(UUID))) {
+            uuidComponents.error = uuidComponents.error || "UUID is not valid.";
+        }
+        return uuidComponents;
+    },
+    serialize: function (uuidComponents, options) {
+        const urnComponents = uuidComponents;
+        //normalize UUID
+        urnComponents.nss = (uuidComponents.uuid || "").toLowerCase();
+        return urnComponents;
+    },
+};
+export default handler;
+//# sourceMappingURL=urn-uuid.js.map