v1.8.0: Audio 代码重构与低功耗优化 (#943)

* Reconstruct Audio Code

* Remove old IoT implementation

* Add MQTT-UDP documentation

* OTA升级失败时，可以继续使用

main/boards/zhengchen-1.54tft-ml307/zhengchen-1.54tft-ml307.cc

@@ -1,12 +1,11 @@
 #include "dual_network_board.h"
-#include "audio_codecs/no_audio_codec.h"
+#include "codecs/no_audio_codec.h"
 #include "../zhengchen-1.54tft-wifi/zhengchen_lcd_display.h"
 #include "system_reset.h"
 #include "application.h"
 #include "button.h"
 #include "config.h"
 #include "power_save_timer.h"
-#include "iot/thing_manager.h"
 #include "led/single_led.h"
 #include "assets/lang_config.h"
 #include "../zhengchen-1.54tft-wifi/power_manager.h"
@@ -167,13 +166,6 @@ private:
         display_->SetupHighTempWarningPopup();
     }
 
-    void InitializeIot() {
-        auto& thing_manager = iot::ThingManager::GetInstance();
-        thing_manager.AddThing(iot::CreateThing("Speaker"));
-        thing_manager.AddThing(iot::CreateThing("Screen"));
-        thing_manager.AddThing(iot::CreateThing("Battery"));
-    }
-
 public:
     ZHENGCHEN_1_54TFT_ML307() :
         DualNetworkBoard(ML307_TX_PIN, ML307_RX_PIN),
@@ -184,8 +176,7 @@ public:
         InitializePowerSaveTimer();
         InitializeSpi();
         InitializeButtons();
-        InitializeSt7789Display();  
-        InitializeIot();
+        InitializeSt7789Display();
         GetBacklight()->RestoreBrightness();
     }