Refactor ESLint configuration and update code formatting: Standardize quotes in eslint.config.mjs, next.config.js, and various TypeScript files for consistency. Add Prettier as a dependency and include formatting scripts in package.json. Clean up unnecessary whitespace in multiple files to enhance code readability.

package.json

@@ -7,6 +7,8 @@
     "build": "next build",
     "start": "next start",
     "lint": "eslint . --ext .ts,.tsx",
+    "format": "prettier --write .",
+    "format:check": "prettier --check .",
     "db:seed": "tsx prisma/seed.ts"
   },
   "prisma": {
@@ -38,6 +40,7 @@
     "eslint-plugin-react-hooks": "^7.0.1",
     "globals": "^16.5.0",
     "postcss": "^8.4.40",
+    "prettier": "^3.7.4",
     "prisma": "^7.1.0",
     "tailwindcss": "^3.4.7",
     "tsx": "^4.21.0",