cart mechanism complete

package.json

@@ -64,15 +64,16 @@
     "react-dom": "^19.0.0",
     "react-dropzone": "^14.3.5",
     "react-hook-form": "^7.54.2",
+    "react-hot-toast": "^2.5.1",
     "redis": "^4.7.0",
     "sanitize-html": "^2.14.0",
     "server-only": "^0.0.1",
     "slugify": "^1.6.6",
-    "swr": "^2.3.0",
     "tailwind-merge": "^2.6.0",
     "tailwind-scrollbar": "^3.1.0",
     "tailwindcss-animate": "^1.0.7",
-    "zod": "^3.24.1"
+    "zod": "^3.24.1",
+    "zustand": "^5.0.3"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3",