- Updated sgl_print_hello function to clear the screen and render "Hello World" with improved task handling.
- Modified business_task to repeatedly display "Hello World" every second.
- Enhanced lcd_rtc_test to create and manage labels more efficiently, ensuring proper screen updates.
- Introduced dynamic text handling in sgl_label to manage memory for label text, allowing for automatic cleanup on destruction.
- Added cmd_mem_info function to display SGL memory usage via shell command.
许晟昊