fix: migrate to ESLint v9 flat config format

clients/typescript/eslint.config.js

@@ -0,0 +1,103 @@
+import js from '@eslint/js';
+import typescript from '@typescript-eslint/eslint-plugin';
+import typescriptParser from '@typescript-eslint/parser';
+import globals from 'globals';
+
+export default [
+  js.configs.recommended,
+  {
+    files: ['**/*.ts', '**/*.tsx'],
+    languageOptions: {
+      parser: typescriptParser,
+      parserOptions: {
+        project: './tsconfig.json',
+        tsconfigRootDir: import.meta.dirname,
+...
+        project: './tsconfig.test.json',
+        tsconfigRootDir: import.meta.dirname,
+      globals: {
+        ...globals.node,
+        ...globals.browser,
+        URL: 'readonly',
+        Response: 'readonly',
+        RequestInit: 'readonly',
+        AbortController: 'readonly',
+        fetch: 'readonly',
+        setTimeout: 'readonly',
+        clearTimeout: 'readonly',
+      },
+    },
+    plugins: {
+      '@typescript-eslint': typescript,
+    },
+    rules: {
+      // Optionally merge in typed presets for stronger checks:
+      // ...typescript.configs['recommended-type-checked']?.rules,
+      // ...typescript.configs['strict-type-checked']?.rules,
+      '@typescript-eslint/explicit-module-boundary-types': 'error',
+      '@typescript-eslint/no-explicit-any': 'error',
+      '@typescript-eslint/no-inferrable-types': 'off',
+      '@typescript-eslint/strict-boolean-expressions': ['error', {
+        allowNullableObject: true
+      }],
+      'prefer-const': 'error',
+      'no-var': 'error',
+      'no-unused-vars': 'off', // Turn off base rule as it can conflict with @typescript-eslint/no-unused-vars
+    },
+  },
+  {
+    files: ['tests/**/*.ts', '**/*.test.ts', '**/*.spec.ts'],
+    languageOptions: {
+      parser: typescriptParser,
+      parserOptions: {
+        ecmaVersion: 2020,
+        sourceType: 'module',
+        project: './tsconfig.test.json',
+      },
+      globals: {
+        ...globals.node,
+        ...globals.browser,
+        ...globals.jest,
+        global: 'readonly',
+        URL: 'readonly',
+        Response: 'readonly',
+        RequestInit: 'readonly',
+        AbortController: 'readonly',
+        fetch: 'readonly',
+        setTimeout: 'readonly',
+        clearTimeout: 'readonly',
+        Headers: 'readonly',
+      },
+    },
+    plugins: {
+      '@typescript-eslint': typescript,
+    },
+    rules: {
+      ...typescript.configs.recommended.rules,
+      '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
+      '@typescript-eslint/explicit-function-return-type': ['error', {
+        allowExpressions: true,
+        allowTypedFunctionExpressions: true
+      }],
+      '@typescript-eslint/explicit-module-boundary-types': 'error',
+      '@typescript-eslint/no-explicit-any': 'error',
+      '@typescript-eslint/no-inferrable-types': 'off',
+      '@typescript-eslint/strict-boolean-expressions': ['error', {
+        allowNullableObject: true
+      }],
+      'prefer-const': 'error',
+      'no-var': 'error',
+      'no-unused-vars': 'off',
+    },
+  },
+  {
+    ignores: [
+      'dist/**',
+      'node_modules/**',
+      'coverage/**',
+      // Keep TS focused; optionally lint JS configs by removing these:
+      // '*.js',
+      // '*.mjs',
+    ],
+  },
+];

clients/typescript/jest.config.js

@@ -1,4 +1,4 @@
-module.exports = {
+export default {
   preset: 'ts-jest/presets/default-esm',
   globals: {
     'ts-jest': {

clients/typescript/package.json

@@ -1,15 +1,16 @@
 {
   "name": "@contextforge/memory-client",
   "version": "0.1.0",
+  "type": "module",
   "description": "TypeScript client for ContextForge Memory API with v0 and v1 support",
-  "main": "dist/index.js",
+  "main": "dist/index.cjs",
   "module": "dist/index.esm.js",
   "types": "dist/types/index.d.ts",
   "sideEffects": false,
   "exports": {
     ".": {
       "import": "./dist/index.esm.js",
-      "require": "./dist/index.js",
+      "require": "./dist/index.cjs",
       "types": "./dist/types/index.d.ts"
     },
     "./package.json": "./package.json"
@@ -60,7 +61,6 @@
   "engines": {
     "node": ">=18.0.0"
   },
-  "peerDependencies": {},
   "devDependencies": {
     "@rollup/plugin-node-resolve": "^16.0.0",
     "@rollup/plugin-terser": "^0.4.4",
@@ -69,6 +69,7 @@
     "@typescript-eslint/eslint-plugin": "^8.0.0",
     "@typescript-eslint/parser": "^8.0.0",
     "eslint": "^9.0.0",
+    "globals": "^16.4.0",
     "husky": "^9.0.0",
     "jest": "^30.0.0",
     "prettier": "^3.1.0",

clients/typescript/rollup.config.js

@@ -41,7 +41,7 @@ export default defineConfig([
         tsconfig: './tsconfig.json',
         declaration: true,
         declarationMap: true,
-        outDir: 'dist/types'
+        declarationDir: 'dist/types'
       }),
       terser()
     ],

clients/typescript/scripts/dev.js

@@ -16,9 +16,13 @@
  *   node scripts/dev.js pre-publish  - Run pre-publish checks/tasks
  */
 
-const { execSync } = require('child_process');
-const fs = require('fs');
-const path = require('path');
+import { execSync } from 'child_process';
+import fs from 'fs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
 
 // Validate we're in the package root
 const packageJsonPath = path.join(__dirname, '..', 'package.json');

clients/typescript/scripts/prepare.js

@@ -8,8 +8,12 @@
 console.log('Preparing TypeScript client...');
 
 // Ensure dist directory exists
-const fs = require('fs');
-const path = require('path');
+import fs from 'fs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
 
 const distDir = path.join(__dirname, '..', 'dist');
 if (!fs.existsSync(distDir)) {