v2.2.0: Add bread-compact-nt26 board (#1663)

* Refactor application error handling and improve network task logic

- Updated error handling for modem initialization failure in Application::Initialize().
- Added new error message for modem initialization in English and Chinese language files.
- Simplified lambda captures in NetworkTask to avoid unnecessary references.
- Set main task priority in Application::Run() for better performance.

* Add support for Bread Compact NT26 board

- Introduced new board configuration for Bread Compact NT26 in CMakeLists.txt and Kconfig.
- Added board-specific implementation in compact_nt26_board.cc and nt26_board.cc.
- Created configuration files for NT26, including config.h and config.json.
- Updated dependencies in idf_component.yml to include uart-eth-modem.
- Translated error messages in config.h for OLED display type selection to English.
- Enhanced display and button initialization logic for NT26 board.

* Update project version and improve build configuration

- Updated project version from 2.1.0 to 2.2.0 in CMakeLists.txt.
- Enabled minimal build configuration to include only essential components.
- Updated README files to replace QQ group links with Discord links for community engagement.

* Update Bread Compact NT26 board configuration name in config.json

* fix compile errors

* Update uart-eth-modem dependency format in idf_component.yml

* fix esp32 compiling errors

* Update CMakeLists.txt to change component dependency from REQUIRES to PRIV_REQUIRES for esp_pm, esp_psram, and esp_driver_gpio

* Refactor CMakeLists.txt to explicitly list board common source files and update include directories for better clarity and organization.

* Add esp_driver_ppa as a dependency in CMakeLists.txt

main/boards/common/ml307_board.cc

@@ -1,8 +1,7 @@
 #include "ml307_board.h"
 
-#include "application.h"
+#include "audio_codec.h"
 #include "display.h"
-#include "assets/lang_config.h"
 
 #include <esp_log.h>
 #include <esp_timer.h>
@@ -66,8 +65,6 @@ void Ml307Board::OnNetworkEvent(NetworkEvent event, const std::string& data) {
 }
 
 void Ml307Board::NetworkTask() {
-    auto& application = Application::GetInstance();
-
     // Notify modem detection started
     OnNetworkEvent(NetworkEvent::ModemDetecting);
 
@@ -92,7 +89,7 @@ void Ml307Board::NetworkTask() {
 
     // Set up network state change callback
     // Note: Don't call GetCarrierName() here as it sends AT command and will block ReceiveTask
-    modem_->OnNetworkStateChanged([this, &application](bool network_ready) {
+    modem_->OnNetworkStateChanged([this](bool network_ready) {
         if (network_ready) {
             OnNetworkEvent(NetworkEvent::Connected);
         } else {