(UPDATE): expand .gitattributes to include additional file types for LFS tracking

(FEAT)[Implement document search functionality]: enhance the search_documents function to load FAISS index and metadata, enabling semantic document retrieval.

(FEAT)[Refactor commit message generation]: enhance the generate_commit_message function to utilize configuration settings and improve error handling.

(FEAT)[Implement FAISS Indexing]: enhance document embedding process by integrating FAISS indexing and saving metadata.

feat: Inital commit from recovered state