infra: migrate to eslint@9 (#2539)

eslint.config.mjs

@@ -0,0 +1,51 @@
+import { fixupPluginRules } from '@eslint/compat';
+import pluginJs from '@eslint/js';
+import configPrettier from 'eslint-config-prettier';
+import pluginNoOnlyTests from 'eslint-plugin-no-only-tests';
+import pluginReact from 'eslint-plugin-react';
+import pluginReactHooks from 'eslint-plugin-react-hooks';
+import pluginTypescript from 'typescript-eslint';
+
+/** @type {import('eslint').Linter.Config[]} */
+export default [
+    { ignores: ['**/dist/', '**/dist-engine/', '**/*.{js,mjs,cjs}'] },
+    pluginJs.configs.recommended,
+
+    ...pluginTypescript.configs.recommendedTypeChecked,
+    { languageOptions: { parserOptions: { projectService: true } } },
+
+    pluginReact.configs.flat.recommended,
+    // pluginReact.configs.flat['jsx-runtime'],
+    { settings: { react: { version: 'detect' } } },
+
+    {
+        plugins: {
+            'react-hooks': pluginReactHooks,
+            'no-only-tests': fixupPluginRules(pluginNoOnlyTests),
+        },
+    },
+    configPrettier,
+
+    {
+        rules: {
+            // "no-console": "error",
+            'no-empty-pattern': 'off',
+            'react/prop-types': 'off',
+            // "react-hooks/rules-of-hooks": "error",
+            'react-hooks/exhaustive-deps': 'error',
+            'no-only-tests/no-only-tests': 'error',
+
+            '@typescript-eslint/no-empty-object-type': 'off',
+            '@typescript-eslint/no-explicit-any': 'off',
+            '@typescript-eslint/no-unsafe-argument': 'off',
+            '@typescript-eslint/no-unsafe-assignment': 'off',
+            '@typescript-eslint/no-unsafe-call': 'off',
+            '@typescript-eslint/no-unsafe-member-access': 'off',
+            '@typescript-eslint/no-unsafe-return': 'off',
+            '@typescript-eslint/no-unused-expressions': 'off',
+            '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_', varsIgnorePattern: '^_' }],
+            '@typescript-eslint/restrict-template-expressions': 'off',
+            '@typescript-eslint/unbound-method': 'off',
+        },
+    },
+];