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/escodegen/bin/esgenerate.js

@@ -0,0 +1,64 @@
+#!/usr/bin/env node
+/*
+  Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*jslint sloppy:true node:true */
+
+var fs = require('fs'),
+    path = require('path'),
+    root = path.join(path.dirname(fs.realpathSync(__filename)), '..'),
+    escodegen = require(root),
+    optionator = require('optionator')({
+        prepend: 'Usage: esgenerate [options] file.json ...',
+        options: [
+            {
+                option: 'config',
+                alias: 'c',
+                type: 'String',
+                description: 'configuration json for escodegen'
+            }
+        ]
+    }),
+    args = optionator.parse(process.argv),
+    files = args._,
+    options;
+
+if (files.length === 0) {
+    console.log(optionator.generateHelp());
+    process.exit(1);
+}
+
+if (args.config) {
+    try {
+        options = JSON.parse(fs.readFileSync(args.config, 'utf-8'))
+    } catch (err) {
+        console.error('Error parsing config: ', err);
+    }
+}
+
+files.forEach(function (filename) {
+    var content = fs.readFileSync(filename, 'utf-8');
+    console.log(escodegen.generate(JSON.parse(content), options));
+});
+/* vim: set sw=4 ts=4 et tw=80 : */