Add PWA support and Recharts dependency

- Install recharts for analytics dashboard visualizations
- Configure Next.js PWA with next-pwa plugin
- Update manifest.json with app details
- Generate service worker and workbox files

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

maternal-web/package.json

@@ -32,6 +32,8 @@
     "recharts": "^3.2.1",
     "redux-persist": "^6.0.0",
     "socket.io-client": "^4.8.1",
+    "workbox-webpack-plugin": "^7.3.0",
+    "workbox-window": "^7.3.0",
     "zod": "^3.25.76"
   },
   "devDependencies": {