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/@pmmmwh/react-refresh-webpack-plugin/lib/utils/getIntegrationEntry.js

@@ -0,0 +1,22 @@
+/**
+ * Gets entry point of a supported socket integration.
+ * @param {'wds' | 'whm' | 'wps' | string} integrationType A valid socket integration type or a path to a module.
+ * @returns {string | undefined} Path to the resolved integration entry point.
+ */
+function getIntegrationEntry(integrationType) {
+  let resolvedEntry;
+  switch (integrationType) {
+    case 'whm': {
+      resolvedEntry = 'webpack-hot-middleware/client';
+      break;
+    }
+    case 'wps': {
+      resolvedEntry = 'webpack-plugin-serve/client';
+      break;
+    }
+  }
+
+  return resolvedEntry;
+}
+
+module.exports = getIntegrationEntry;