Update project configuration and testing infrastructure

- Refactored Jest configuration for improved ESM and TypeScript support
- Updated `jest.setup.ts` with comprehensive test environment configuration
- Enhanced mocking for WebSocket, console, and external dependencies
- Adjusted package.json dependencies and scripts
- Updated tsconfig.json with decorator and test exclusion settings
- Improved test coverage configuration and reporting
- Simplified test file structure and mocking strategies

jest.setup.ts

@@ -1,15 +1,84 @@
-import { config } from 'dotenv';
-import { resolve } from 'path';
+import { jest } from '@jest/globals';
+import dotenv from 'dotenv';
+import { TextEncoder, TextDecoder } from 'util';
 
 // Load test environment variables
-const envFile = process.env.NODE_ENV === 'test' ? '.env.test' : '.env';
-config({ path: resolve(__dirname, envFile) });
+dotenv.config({ path: '.env.test' });
 
-// Set default test environment variables if not provided
-process.env.TEST_HASS_HOST = process.env.TEST_HASS_HOST || 'http://localhost:8123';
-process.env.TEST_HASS_TOKEN = process.env.TEST_HASS_TOKEN || 'test_token';
-process.env.TEST_HASS_SOCKET_URL = process.env.TEST_HASS_SOCKET_URL || 'ws://localhost:8123/api/websocket';
-process.env.TEST_PORT = process.env.TEST_PORT || '3001';
+// Set test environment
+process.env.NODE_ENV = 'test';
+process.env.HASS_URL = 'http://localhost:8123';
+process.env.HASS_TOKEN = 'test_token';
+process.env.CLAUDE_API_KEY = 'test_api_key';
+process.env.CLAUDE_MODEL = 'test_model';
 
-// Ensure test environment
-process.env.NODE_ENV = 'test'; 
+// Add TextEncoder and TextDecoder to global scope
+Object.defineProperty(global, 'TextEncoder', {
+    value: TextEncoder,
+    writable: true
+});
+
+Object.defineProperty(global, 'TextDecoder', {
+    value: TextDecoder,
+    writable: true
+});
+
+// Configure console for tests
+const originalConsole = { ...console };
+global.console = {
+    ...console,
+    log: jest.fn(),
+    error: jest.fn(),
+    warn: jest.fn(),
+    info: jest.fn(),
+    debug: jest.fn(),
+};
+
+// Increase test timeout
+jest.setTimeout(30000);
+
+// Mock WebSocket
+jest.mock('ws', () => {
+    return {
+        WebSocket: jest.fn().mockImplementation(() => ({
+            on: jest.fn(),
+            send: jest.fn(),
+            close: jest.fn(),
+            removeAllListeners: jest.fn()
+        }))
+    };
+});
+
+// Mock chalk
+jest.mock('chalk', () => ({
+    default: {
+        red: (text: string) => text,
+        green: (text: string) => text,
+        yellow: (text: string) => text,
+        blue: (text: string) => text,
+        magenta: (text: string) => text,
+        cyan: (text: string) => text,
+        white: (text: string) => text,
+        gray: (text: string) => text,
+        grey: (text: string) => text,
+        black: (text: string) => text,
+        bold: (text: string) => text,
+        dim: (text: string) => text,
+        italic: (text: string) => text,
+        underline: (text: string) => text,
+        inverse: (text: string) => text,
+        hidden: (text: string) => text,
+        strikethrough: (text: string) => text,
+        visible: (text: string) => text,
+    }
+}));
+
+// Reset mocks between tests
+beforeEach(() => {
+    jest.clearAllMocks();
+});
+
+// Cleanup after tests
+afterEach(() => {
+    jest.clearAllTimers();
+});