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/@istanbuljs/schema/package.json

@@ -0,0 +1,30 @@
+{
+	"name": "@istanbuljs/schema",
+	"version": "0.1.3",
+	"description": "Schemas describing various structures used by nyc and istanbuljs",
+	"main": "index.js",
+	"scripts": {
+		"release": "standard-version --sign",
+		"pretest": "xo",
+		"test": "tap",
+		"snap": "npm test -- --snapshot"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"author": "Corey Farrell",
+	"license": "MIT",
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/istanbuljs/schema.git"
+	},
+	"bugs": {
+		"url": "https://github.com/istanbuljs/schema/issues"
+	},
+	"homepage": "https://github.com/istanbuljs/schema#readme",
+	"devDependencies": {
+		"standard-version": "^7.0.0",
+		"tap": "^14.6.7",
+		"xo": "^0.25.3"
+	}
+}