chore: add generate-assets script

package.json

@@ -62,10 +62,12 @@
     "eslint-plugin-react": "^7.37.5",
     "eslint-plugin-react-hooks": "^7.0.1",
     "globals": "^16.5.0",
+    "icon-gen": "^5.0.0",
     "jsdom": "^27.1.0",
     "node-addon-api": "^8.3.1",
     "prettier": "^3.6.2",
     "prettier-plugin-tailwindcss": "^0.7.1",
+    "sharp": "^0.34.5",
     "tailwindcss": "^4.1.16",
     "ts-node": "^10.9.2",
     "typescript": "^5.9.3",