* init a scenario for kaggle feature engineering
* Added support for loading and storing RAG in Kaggle scenarios.
* fix a ci bug
* Add RAG after each experiment's feedback.
* add a promt
* fix a bug
* fix a bug
* add a readme
* refine the code in knowledge loading
* init a scenario for kaggle feature engineering
* add 1st version rag for Kaggle hypo
* refine the code
* fix a bug
* add the process of extracting exp from docs
* Remove the unnecessary file.
* refine the code for ci test
* Delete rdagent/app/kaggle_feature/conf.py
* refine the comments
* Update extract_experience_from_docs.py
* Update extract_experience_from_docs.py