created simple auth system using betterauth

package.json

@@ -9,11 +9,15 @@
   },
   "dependencies": {
     "@tailwindcss/postcss": "^4.2.1",
+    "better-auth": "^1.4.19",
+    "better-auth-localization": "^2.3.1",
+    "better-sqlite3": "^12.6.2",
     "next": "16.1.6",
     "postcss": "^8.5.6",
     "tailwindcss": "^4.2.1"
   },
   "devDependencies": {
+    "@types/better-sqlite3": "^7.6.13",
     "@types/node": "^20",
     "@types/react": "^19",
     "typescript": "^5"