Upgrade ESLint and deps

.github/dependabot.yml

@@ -25,6 +25,3 @@ updates:
       - dependency-name: 'node-fetch'
         update-types:
           - 'version-update:semver-major'
-      - dependency-name: 'eslint'
-        update-types:
-          - 'version-update:semver-major'

eslint.config.js

@@ -0,0 +1,87 @@
+/* eslint-disable import/no-named-as-default-member */
+
+import js from '@eslint/js';
+import vitest from '@vitest/eslint-plugin';
+import prettier from 'eslint-config-prettier';
+import importPlugin from 'eslint-plugin-import';
+import simpleImportSort from 'eslint-plugin-simple-import-sort';
+import globals from 'globals';
+import tseslint from 'typescript-eslint';
+
+export default [
+  {
+    ignores: [
+      '.git/*',
+      '.vscode/*',
+      'coverage/*',
+      'dist/*',
+      'node_modules/*',
+      'playwright-report/*',
+    ],
+  },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  ...tseslint.configs.stylistic,
+  importPlugin.flatConfigs.recommended,
+  importPlugin.flatConfigs.typescript,
+  prettier,
+  {
+    files: ['**/*.{js,mjs,cjs,ts,cts,mts}'],
+    languageOptions: {
+      globals: {
+        ...globals.node,
+        ...globals.es2021,
+      },
+      parserOptions: {
+        project: ['tsconfig.json', 'tests/tsconfig.json'],
+        warnOnUnsupportedTypeScriptVersion: false,
+      },
+    },
+    plugins: { 'simple-import-sort': simpleImportSort },
+    settings: {
+      'import/resolver': {
+        typescript: {
+          project: ['tsconfig.json', 'tests/tsconfig.json'],
+        },
+      },
+    },
+    rules: {
+      '@typescript-eslint/consistent-type-imports': [
+        1,
+        { fixStyle: 'inline-type-imports' },
+      ],
+      'no-console': 1,
+      'no-warning-comments': ['warn', { terms: ['todo', 'fixme', '@@@'] }],
+      'simple-import-sort/imports': 'warn',
+      'simple-import-sort/exports': 'warn',
+      'import/first': 'warn',
+      'import/newline-after-import': 'warn',
+      'import/no-duplicates': ['error', { 'prefer-inline': true }],
+      'import/order': 'off',
+    },
+  },
+  {
+    files: ['src/**/*.{js,mjs,cjs,ts,cts,mts}'],
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.es2021,
+      },
+    },
+  },
+  {
+    files: ['tests/**/*.{spec,test}.{js,ts}'],
+    languageOptions: {
+      globals: {
+        ...vitest.environments.env.globals,
+      },
+    },
+    plugins: {
+      vitest,
+    },
+    rules: {
+      ...vitest.configs.recommended.rules,
+      '@typescript-eslint/unbound-method': 'off',
+    },
+  },
+];