fix: use eslint.module.mjs

.node-version

@@ -1 +1 @@
-20.11.1
+20.13.1

eslint.config.mjs

@@ -0,0 +1,48 @@
+import js from "@eslint/js";
+import prettier from "eslint-config-prettier";
+import perfectionist from "eslint-plugin-perfectionist";
+import unicorn from "eslint-plugin-unicorn";
+import vitest from "eslint-plugin-vitest";
+import globals from "globals";
+import tseslint from "typescript-eslint";
+
+export default [
+	{
+		languageOptions: {
+			globals: { ...globals.browser, ...globals.node },
+		},
+	},
+	js.configs.recommended,
+	...tseslint.configs.recommended,
+	unicorn.configs["flat/recommended"],
+	prettier,
+	{
+		plugins: {
+			perfectionist,
+		},
+		rules: {
+			...perfectionist.configs["recommended-alphabetical"].rules,
+			"perfectionist/sort-imports": "off",
+		},
+	},
+	{
+		files: ["*.test.ts*"],
+		languageOptions: {
+			globals: { ...vitest.environments.env.globals },
+		},
+		plugins: {
+			vitest,
+		},
+		rules: {
+			...vitest.configs.recommended.rules,
+		},
+	},
+	{
+		rules: {
+			"unicorn/no-array-callback-reference": "off",
+			"unicorn/numeric-separators-style": "off",
+			"unicorn/prefer-top-level-await": "off",
+			"unicorn/prevent-abbreviations": "off",
+		},
+	},
+];