add the dockerfile for containing the backend service

fix the data schema issue

enable semantic caching

refactor the app.py

add missing libraries

Update the .env.example file

do major formatting changes

fix retriever formatting and test generate_summary endpoint

major revamp of the endpoints to actualize the endpoints with the real backend database

update the vectorstore and the langgraph state to accommodate the actual vectorstore

update collection config file

add setup.py to setup the package as

change the folders and add the collection_config

change the vector store from in-memory to mongoDB

Add authentication to the app generate_summary