Add comprehensive logging infrastructure with configuration and middleware

- Implemented centralized logging utility using Winston with daily log rotation
- Added logging middleware for request and error tracking
- Extended .env.example with logging configuration options
- Updated app configuration to support flexible logging settings
- Replaced console.log with structured logging in main application entry point
- Created logging middleware to capture request details and response times

.env.example

@@ -48,4 +48,26 @@ CORS_ORIGINS=http://localhost:3000,http://localhost:8123
 TEST_HASS_HOST=http://localhost:8123
 TEST_HASS_TOKEN=test_token
 TEST_HASS_SOCKET_URL=ws://localhost:8123/api/websocket
-TEST_PORT=3001
+TEST_PORT=3001
+
+# Security Configuration
+JWT_SECRET=your-secret-key
+
+# Rate Limiting
+RATE_LIMIT_WINDOW_MS=900000  # 15 minutes
+RATE_LIMIT_MAX=100
+
+# SSE Configuration
+SSE_MAX_CLIENTS=1000
+SSE_PING_INTERVAL=30000
+
+# Logging Configuration
+LOG_LEVEL=info
+LOG_DIR=logs
+LOG_MAX_SIZE=20m
+LOG_MAX_DAYS=14d
+LOG_COMPRESS=true
+LOG_REQUESTS=true
+
+# Version
+VERSION=0.1.0