redis 제거

backend/package.json

@@ -20,7 +20,7 @@
     "test:e2e": "jest --config ./test/jest-e2e.json"
   },
   "dependencies": {
-    "@nestjs-modules/ioredis": "^2.0.2",
+
     "@nestjs/common": "^11.0.1",
     "@nestjs/config": "^4.0.2",
     "@nestjs/core": "^11.0.1",
@@ -37,7 +37,7 @@
     "bcrypt": "^6.0.0",
     "class-transformer": "^0.5.1",
     "class-validator": "^0.14.2",
-    "ioredis": "^5.8.1",
+
     "multer": "^2.0.2",
     "nodemailer": "^7.0.9",
     "passport": "^0.7.0",