Update date and time to UTC format

Updating path for chroma_db

Fix upload path to be part of environment vairiable

1) Log google drive documents entry in mongo db

Sorted the documents list in descending order

Log google drive documents in the mongodb, add source of the document and made chunks to overlap text.

Changed 'EMBEDDING_MODEL', 'all-MiniLM-L6-v2' for produciton also.

Updated with port and issue fixed

Commiting code

Update deployment constraints for python-magic-bin

Updarte chatbot with deployment configurations on the Render

Changes to be committed:

Implementation for Google drive is done. Now it is working fine, except need a new function that can delete the chunks if a document is removed from google drive.

Enhanced the support for the excel file and added endpoint to have optimized vector store and Rag for the Excel.

Working chat with context and history

Setup completed

Refactoring code

Added support for multiple LLMs