feat: 添加 G5 房间状态数据库配置，更新环境变量，优化数据库连接逻辑，增强日志记录

bls-rcu-action-backend/.env.example

@@ -40,4 +40,15 @@ REDIS_API_BASE_URL=http://localhost:3000
 # ROOM_STATUS_DB_SCHEMA=room_status
 # ROOM_STATUS_DB_TABLE=room_status_moment
 
+# G5 Room Status DB Configuration (optional)
+# ENABLE_G5_SYNC=true
+# POSTGRES_HOST_G5=10.8.8.80
+# POSTGRES_PORT_G5=5434
+# POSTGRES_DATABASE_G5=log_platform
+# POSTGRES_USER_G5=log_admin
+# POSTGRES_PASSWORD_G5=your-password
+# ROOM_STATUS_DB_SCHEMA_G5=room_status
+# ROOM_STATUS_DB_TABLE_G5=room_status_moment_g5
+# ROOM_STATUS_DB_MAX_CONNECTIONS_G5=5
+
 ENABLE_LOOP_NAME_AUTO_GENERATION=true