新增 DfPlayer 和 CanMv 类，优化 UART 读写方法，更新 CommonCenter 以支持新类实例化

Core/App/config.hpp

@@ -11,4 +11,8 @@ struct Config {
         TIM_HandleTypeDef* timer;
         uint32_t channel;
     } kCaptureConfig = {{GPIOA, GPIO_PIN_0}, &htim7, TIM_CHANNEL_1};
+
+    static inline UART_HandleTypeDef* kDfPlayerUart = &hcom_uart[COM1];
+    
+    static inline UART_HandleTypeDef* kCanMvUart    = &hcom_uart[COM1];
 };