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/Common/serial_port.hpp

@@ -29,7 +29,10 @@ public:
         char c;
         ReadByte();
         while (true) {
-            HAL_UART_Receive(handle, reinterpret_cast<uint8_t*>(&c), sizeof(c), HAL_MAX_DELAY);
+            auto r =  HAL_UART_Receive(handle, reinterpret_cast<uint8_t*>(&c), sizeof(c), timeout);
+            if (r != HAL_OK) {
+                throw std::runtime_error("UART receive error");
+            }
             if (c == '\n') {
                 if (!result.empty() && result.back() == '\r') {
                     result.pop_back();
@@ -41,6 +44,13 @@ public:
         return result;
     }
 
+    void ReadBytesBlocking(uint8_t* data, size_t size) {
+        auto r = HAL_UART_Receive(handle, data, size, timeout);
+        if (r != HAL_OK) {
+            throw std::runtime_error("UART receive error");
+        }
+    }
+
     void WriteBytesBlocking(const uint8_t* data, size_t size) {
         HAL_UART_Transmit(handle, const_cast<uint8_t*>(data), size, timeout);
     }
@@ -56,7 +66,7 @@ public:
         }
         HAL_UART_Transmit(handle, reinterpret_cast<uint8_t*>(buffer.get()), strlen(buffer.get()), timeout);
     }
-    
+
     void WriteLineBlocking(const char* format, ...) {
         va_list args;
         va_start(args, format);