ts-node version consistency

Author: chpy04

src/backend/package.json

@@ -43,7 +43,6 @@
     "@types/supertest": "^2.0.12",
     "nodemon": "^2.0.16",
     "supertest": "^6.2.4",
-    "ts-node": "^8.10.1",
     "tsx": "^4.19.2",
     "typescript": "^5.7.3",
     "vitest": "^3.0.0"

src/backend/tsconfig.json

@@ -9,10 +9,6 @@
     "esModuleInterop": true,
     "types": ["multer"]
   },
-  "ts-node": {
-    "esm": true,
-    "experimentalSpecifierResolution": "node"
-  },
   "exclude": ["node_modules", "dist"],
   "include": ["./index.ts", "./src/**/*.ts"],
   "files": ["./custom.d.ts"]