Initial commit: Next.js UWB positioning webapp

- Complete Next.js 14 app with TypeScript and Tailwind CSS
- ESP32 serial communication via API routes
- Real-time UWB positioning visualization
- Interactive 2D warehouse mapping with Canvas
- Device connection interface with auto-detection
- AT command parsing for UWBHelper library integration
- Clean project structure with comprehensive documentation

package.json

@@ -0,0 +1,41 @@
+{
+  "name": "uwb-positioning-webapp",
+  "version": "1.0.0",
+  "description": "Next.js web application for UWB indoor positioning system visualization and control",
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
+  },
+  "keywords": [
+    "uwb",
+    "positioning",
+    "indoor",
+    "warehouse",
+    "visualization",
+    "nextjs"
+  ],
+  "author": "UWB Positioning Team",
+  "license": "MIT",
+  "dependencies": {
+    "@serialport/parser-readline": "^12.0.0",
+    "next": "^14.2.32",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "serialport": "^12.0.0",
+    "ws": "^8.14.0"
+  },
+  "devDependencies": {
+    "@types/node": "^20.8.0",
+    "@types/react": "^18.2.0",
+    "@types/react-dom": "^18.2.0",
+    "@types/ws": "^8.5.0",
+    "autoprefixer": "^10.4.0",
+    "eslint": "^8.52.0",
+    "eslint-config-next": "14.0.0",
+    "postcss": "^8.4.0",
+    "tailwindcss": "^3.3.0",
+    "typescript": "^5.2.0"
+  }
+}