feat: storage and token limiting

package.json

@@ -10,6 +10,7 @@
     "lint": "next lint"
   },
   "dependencies": {
+    "@better-auth/stripe": "^1.2.5",
     "@fast-csv/format": "^5.0.2",
     "@fast-csv/parse": "^5.0.2",
     "@prisma/client": "^6.6.0",
@@ -44,6 +45,7 @@
     "sharp": "^0.33.5",
     "slugify": "^1.6.6",
     "sonner": "^2.0.1",
+    "stripe": "^18.0.0",
     "tailwind-merge": "^3.0.1",
     "tailwindcss-animate": "^1.0.7",
     "zod": "^3.24.2"