fix: normalize nutrition units and retain zero-valued nutrients

package.json

@@ -3,6 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
+    "test": "node --experimental-transform-types --test tests/*.test.ts",
     "dev": "next dev",
     "lint": "next lint",
     "postinstall": "prisma generate",
@@ -30,7 +31,7 @@
     "clsx": "^2.1.1",
     "framer-motion": "^11.18.2",
     "lucide-react": "^0.460.0",
-    "next": "^15.5.10",
+    "next": "^15.5.24",
     "next-themes": "^0.4.6",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
@@ -43,7 +44,7 @@
     "@types/react-dom": "^19.0.0",
     "depcheck": "^1.4.7",
     "eslint": "^8.57.1",
-    "eslint-config-next": "^15.5.10",
+    "eslint-config-next": "^15.5.24",
     "postcss": "^8.5.10",
     "prisma": "^6.19.3",
     "tailwindcss": "^3.4.19",