chore: migrate to eslint v9

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+  "eslint.experimental.useFlatConfig": true
+}

build.config.ts

@@ -3,6 +3,6 @@ import { defineBuildConfig } from 'unbuild'
 export default defineBuildConfig({
   externals: [
     'vite',
-    '@vue/server-renderer'
-  ]
+    '@vue/server-renderer',
+  ],
 })

eslint.config.mjs

@@ -0,0 +1,9 @@
+// @ts-check
+import { createConfigForNuxt } from '@nuxt/eslint-config/flat'
+
+export default createConfigForNuxt({
+  features: {
+    tooling: true,
+    stylistic: true,
+  },
+})

package.json

@@ -26,25 +26,25 @@
   "scripts": {
     "build": "unbuild",
     "dev": "vitest",
-    "lint": "eslint --ext .ts src",
+    "lint": "eslint src",
     "release": "pnpm test && pnpm build && changelogen --release --push && pnpm publish",
     "test": "pnpm lint && pnpm vitest run --coverage && tsc --noEmit"
   },
   "dependencies": {
     "ufo": "^1.3.2"
   },
   "devDependencies": {
-    "@nuxtjs/eslint-config-typescript": "^12.1.0",
     "@types/node": "^20.10.6",
     "@vitest/coverage-v8": "^1.1.1",
     "changelogen": "^0.5.5",
-    "eslint": "^8.56.0",
+    "eslint": "^9.2.0",
     "expect-type": "^0.17.3",
     "typescript": "^5.3.3",
     "unbuild": "^2.0.0",
     "vite": "^5.0.10",
     "vitest": "1.1.1",
-    "vue": "3.4.3"
+    "vue": "3.4.3",
+    "@nuxt/eslint-config": "^0.3.10"
   },
   "packageManager": "[email protected]"
 }