deps: upgrade eslint from 8 to 9

Author: jalik

.eslintignore

@@ -0,0 +1,61 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2025 Karl STEIN
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+import eslint from '@eslint/js'
+import { defineConfig } from 'eslint/config'
+import tseslint from 'typescript-eslint'
+
+export default defineConfig([
+  {
+    ignores: [
+      '.idea/**',
+      'node_modules/**',
+      'cjs/**',
+      'esm/**',
+      'coverage/**',
+      'test/**'
+    ]
+  },
+
+  // Base JS recommended rules
+  eslint.configs.recommended,
+
+  // TypeScript recommended rules
+  ...tseslint.configs.recommended,
+
+  {
+    files: ['**/*.ts'],
+    languageOptions: {
+      parser: tseslint.parser,
+      parserOptions: {
+        project: true,
+        ecmaVersion: 'latest',
+        tsconfigRootDir: import.meta.dirname
+      }
+    },
+    rules: {
+      '@typescript-eslint/ban-ts-comment': 'warn'
+    }
+  }
+])