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/sys/task_manager.h

@@ -42,7 +42,7 @@ public:
      * @param[in]  taskMask 待置位的任务位图掩码。
      * @param[out] 无。
      * @retval    无返回值。
-     * @note      内部通过保持当前 PRIMASK 状态的临界区保证可由主循环与 ISR 共享调用。
+     * @note      内部通过 BASEPRI 临界区(RT_CRITICAL_SAVE/RESTORE)保证可由主循环与 ISR 共享调用。
      */
     static void set(uint32_t taskMask);