【需求】双网络类型通过长按boot切换网络 (#520)

* 【需求】双网络类型通过长按boot切换网络

* Update Kconfig.projbuild

---------

Co-authored-by: guhaibo <guhaibo@boe.com.cn>
Co-authored-by: Xiaoxia <terrence@tenclass.com>

main/boards/common/dual_network_board.h

@@ -0,0 +1,59 @@
+#ifndef DUAL_NETWORK_BOARD_H
+#define DUAL_NETWORK_BOARD_H
+
+#include "board.h"
+#include "wifi_board.h"
+#include "ml307_board.h"
+#include <memory>
+
+//enum NetworkType
+enum class NetworkType {
+    WIFI,
+    ML307
+};
+
+// 双网络板卡类，可以在WiFi和ML307之间切换
+class DualNetworkBoard : public Board {
+private:
+    // 使用基类指针存储当前活动的板卡
+    std::unique_ptr<Board> current_board_;
+    NetworkType network_type_ = NetworkType::ML307;  // Default to ML307
+
+    // ML307的引脚配置
+    gpio_num_t ml307_tx_pin_;
+    gpio_num_t ml307_rx_pin_;
+    size_t ml307_rx_buffer_size_;
+    
+    // 从Settings加载网络类型
+    NetworkType LoadNetworkTypeFromSettings();
+    
+    // 保存网络类型到Settings
+    void SaveNetworkTypeToSettings(NetworkType type);
+
+    // 初始化当前网络类型对应的板卡
+    void InitializeCurrentBoard();
+ 
+public:
+    DualNetworkBoard(gpio_num_t ml307_tx_pin, gpio_num_t ml307_rx_pin, size_t ml307_rx_buffer_size = 4096);
+    virtual ~DualNetworkBoard() = default;
+ 
+    // 切换网络类型
+    void SwitchNetType();
+    
+    // 获取当前网络类型
+    NetworkType GetNetworkType() const { return network_type_; }
+    
+    // 重写Board接口
+    virtual std::string GetBoardType() override;
+    virtual void StartNetwork() override;
+    virtual Http* CreateHttp() override;
+    virtual WebSocket* CreateWebSocket() override;
+    virtual Mqtt* CreateMqtt() override;
+    virtual Udp* CreateUdp() override;
+    virtual const char* GetNetworkStateIcon() override;
+    virtual void SetPowerSaveMode(bool enabled) override;
+    virtual std::string GetBoardJson() override;
+    
+};
+
+#endif // DUAL_NETWORK_BOARD_H