migrat to new eslint flat config files

web/eslint.config.mjs

@@ -0,0 +1,104 @@
+import { FlatCompat } from '@eslint/eslintrc';
+import js from '@eslint/js';
+import typescriptEslint from '@typescript-eslint/eslint-plugin';
+import tsParser from '@typescript-eslint/parser';
+import globals from 'globals';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import parser from 'svelte-eslint-parser';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all,
+});
+
+export default [
+  {
+    ignores: [
+      '**/.DS_Store',
+      '**/node_modules',
+      'build',
+      '.svelte-kit',
+      'package',
+      '**/.env',
+      '**/.env.*',
+      '!**/.env.example',
+      '**/pnpm-lock.yaml',
+      '**/package-lock.json',
+      '**/yarn.lock',
+      'src/lib/sdk',
+      'src/lib/elements/ui',
+      'eslint.config.mjs',
+    ],
+  },
+  ...compat.extends(
+    'eslint:recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:svelte/recommended',
+    'plugin:unicorn/recommended',
+  ),
+  {
+    plugins: {
+      '@typescript-eslint': typescriptEslint,
+    },
+
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+        NodeJS: true,
+      },
+
+      parser: tsParser,
+      ecmaVersion: 2022,
+      sourceType: 'module',
+
+      parserOptions: {
+        extraFileExtensions: ['.svelte'],
+        tsconfigRootDir: __dirname,
+        project: ['./tsconfig.json'],
+      },
+    },
+
+    rules: {
+      '@typescript-eslint/no-unused-vars': [
+        'warn',
+        {
+          argsIgnorePattern: '^_$',
+          varsIgnorePattern: '^_$',
+        },
+      ],
+
+      curly: 2,
+      'unicorn/no-useless-undefined': 'off',
+      'unicorn/prefer-spread': 'off',
+      'unicorn/no-null': 'off',
+      'unicorn/prevent-abbreviations': 'off',
+      'unicorn/no-nested-ternary': 'off',
+      'unicorn/consistent-function-scoping': 'off',
+      'unicorn/prefer-top-level-await': 'off',
+      'unicorn/import-style': 'off',
+      'svelte/button-has-type': 'error',
+      '@typescript-eslint/await-thenable': 'error',
+      '@typescript-eslint/no-floating-promises': 'error',
+      '@typescript-eslint/no-misused-promises': 'error',
+      '@typescript-eslint/require-await': 'error',
+    },
+  },
+  {
+    files: ['**/*.svelte'],
+
+    languageOptions: {
+      parser: parser,
+      ecmaVersion: 5,
+      sourceType: 'script',
+
+      parserOptions: {
+        parser: '@typescript-eslint/parser',
+      },
+    },
+  },
+];

web/tsconfig.json

@@ -12,7 +12,9 @@
     "sourceMap": true,
     "strict": true,
     "target": "ES2020",
-    "types": ["vitest/globals"]
+    "types": [
+      "vitest/globals"
+    ]
   },
   // Path aliases are handled by https://kit.svelte.dev/docs/configuration#alias
   // except $lib which is handled by https://kit.svelte.dev/docs/configuration#files
@@ -35,4 +37,4 @@
     "*.ts",
     "*.js"
   ]
-}
+}