* Update .gitignore and modify dataset paths in scripts for improved file management and compatibility with Hugging Face datasets. Additionally, refactor dataset loading functions to utilize load_hf_or_local_file for better flexibility.
* Remove sglang subproject and update dataset path format in load_hf_or_local_file function for compatibility with Hugging Face datasets.
* Refactor imports in grader.py and parser.py to include sympy for improved functionality.
Ligeng Zhu