Refactor eval.py to remove unused context fetching functions, streamlining the pipeline configuration.

Remove outdated result files and enhance filename generation logic in eval.py. Update test cases for improved keyword accuracy. Finalized encoder models

Refactor answer.py and eval.py to integrate OpenAI client, update embedding models, and enhance pipeline debugging. Add einops dependency in pyproject.toml. Created results files to compare

Created answer.py and main.py to run the rag. Created eval and tests to test result accuracy