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/papaparse/Gruntfile.js

@@ -0,0 +1,27 @@
+module.exports = function(grunt) {
+	grunt.initConfig({
+		uglify: {
+			options: {
+				compress: {
+					global_defs: {
+						'PAPA_BROWSER_CONTEXT': true
+					},
+					dead_code: true
+				},
+				output: {
+					comments: 'some',
+				},
+			},
+			min: {
+				files: {
+					'papaparse.min.js': ['papaparse.js']
+				},
+			},
+		},
+	});
+
+	grunt.loadNpmTasks('grunt-contrib-uglify');
+
+	grunt.registerTask('build', ['uglify']);
+	grunt.registerTask('default', ['uglify']);
+};