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/magiclick-2p4/magiclick_2p4_board.cc

@@ -1,10 +1,9 @@
 #include "wifi_board.h"
 #include "display/lcd_display.h"
-#include "audio_codecs/es8311_audio_codec.h"
+#include "codecs/es8311_audio_codec.h"
 #include "application.h"
 #include "button.h"
 #include "led/circular_strip.h"
-#include "iot/thing_manager.h"
 #include "config.h"
 #include "font_awesome_symbols.h"
 #include "assets/lang_config.h"
@@ -225,13 +224,6 @@ private:
                                     DISPLAY_WIDTH, DISPLAY_HEIGHT, DISPLAY_OFFSET_X, DISPLAY_OFFSET_Y, DISPLAY_MIRROR_X, DISPLAY_MIRROR_Y, DISPLAY_SWAP_XY);
     }
 
-    // 物联网初始化，添加对 AI 可见设备
-    void InitializeIot() {
-        auto& thing_manager = iot::ThingManager::GetInstance();
-        thing_manager.AddThing(iot::CreateThing("Speaker"));
-        thing_manager.AddThing(iot::CreateThing("Screen"));
-    }
-
 public:
     magiclick_2p4() :
         main_button_(MAIN_BUTTON_GPIO),
@@ -244,7 +236,6 @@ public:
         InitializeButtons();
         InitializeSpi();
         InitializeNv3023Display();
-        InitializeIot();
         GetBacklight()->RestoreBrightness();
         
     }