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/http-proxy-middleware/dist/handlers/fix-request-body.js

@@ -0,0 +1,33 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.fixRequestBody = void 0;
+const querystring = require("querystring");
+/**
+ * Fix proxied body if bodyParser is involved.
+ */
+function fixRequestBody(proxyReq, req) {
+    // skip fixRequestBody() when req.readableLength not 0 (bodyParser failure)
+    if (req.readableLength !== 0) {
+        return;
+    }
+    const requestBody = req.body;
+    if (!requestBody) {
+        return;
+    }
+    const contentType = proxyReq.getHeader('Content-Type');
+    if (!contentType) {
+        return;
+    }
+    const writeBody = (bodyData) => {
+        // deepcode ignore ContentLengthInCode: bodyParser fix
+        proxyReq.setHeader('Content-Length', Buffer.byteLength(bodyData));
+        proxyReq.write(bodyData);
+    };
+    if (contentType.includes('application/json')) {
+        writeBody(JSON.stringify(requestBody));
+    }
+    else if (contentType.includes('application/x-www-form-urlencoded')) {
+        writeBody(querystring.stringify(requestBody));
+    }
+}
+exports.fixRequestBody = fixRequestBody;