Migrate eslint

Ran `npx @next/codemod@canary next-lint-to-eslint-cli .` see https://nextjs.org/docs/app/getting-started/installation#set-up-linting

Author: kevinashworth

eslint.config.mjs

@@ -1,17 +1,12 @@
+import nextCoreWebVitals from "eslint-config-next/core-web-vitals";
+import nextTypescript from "eslint-config-next/typescript";
 import path from "node:path";
 import { fileURLToPath } from "node:url";
 
 import { fixupConfigRules } from "@eslint/compat";
-import { FlatCompat } from "@eslint/eslintrc";
-import js from "@eslint/js";
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
-const compat = new FlatCompat({
-  baseDirectory: __dirname,
-  recommendedConfig: js.configs.recommended,
-  allConfig: js.configs.all,
-});
 
 const eslintConfig = [
   ...fixupConfigRules(compat.extends("next/core-web-vitals", "next/typescript")),
@@ -58,6 +53,9 @@ const eslintConfig = [
       ],
     },
   },
+  {
+    ignores: ["node_modules/**", ".next/**", "out/**", "build/**", "next-env.d.ts"]
+  }
 ];
 
 export default eslintConfig;

package.json

@@ -6,7 +6,7 @@
     "dev": "next dev --turbopack -p 3030",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint",
+    "lint": "eslint .",
     "format": "prettier --write .",
     "type-check": "tsc --noEmit"
   },
@@ -33,7 +33,6 @@
   },
   "devDependencies": {
     "@eslint/compat": "1.4.1",
-    "@eslint/eslintrc": "3.3.1",
     "@eslint/js": "9.39.1",
     "@next/eslint-plugin-next": "16.0.1",
     "@tailwindcss/forms": "0.5.10",