Refactor and clean up codebase

- Removed unused constants and type aliases in app_spi_command_defs.h and temp_sensor.h.
- Simplified ISpiCommandHandler destructor to default.
- Eliminated redundant methods and comments in temp_sensor and usart0 files.
- Consolidated writeU32Le function to app_spi_command_defs.h for reuse.
- Updated comments for clarity and accuracy in task_manager.h and task_runner.cpp.
- Removed hardfault.h as it contained no declarations.
- Cleaned up CANFD and watchdog implementations by removing dead code and unnecessary comments.
- Updated version numbers in config.h to reflect recent changes.
- Enhanced error handling and diagnostics in hardfault handling.

GD32E508_DCU_APP/device/spi/spi_command_handler.h

@@ -1,4 +1,4 @@
-#ifndef DEVICE_SPI_COMMAND_HANDLER_H
+#ifndef DEVICE_SPI_COMMAND_HANDLER_H
 #define DEVICE_SPI_COMMAND_HANDLER_H
 
 #include <cstdint>
@@ -16,10 +16,10 @@ struct SpiCommandContext {
 
 class ISpiCommandHandler {
 public:
-    ~ISpiCommandHandler() {}
-
     virtual bool canHandle(uint8_t frame_type) const = 0;
     virtual void handle(AppSpiCommand &bus, const SpiCommandContext &ctx) = 0;
+protected:
+    ~ISpiCommandHandler() = default;  /* 接口基类,不允许通过基类指针 delete;裸机不退出。 */
 };
 
 #endif /* DEVICE_SPI_COMMAND_HANDLER_H */