add code to set the number of documents in Chroma

update rag_requests counter and remove one leftover print statement printing the docs ids.

add tests for rag pipeline

remove english support

extract functions and add tests for vector_store

Restructure code and add config test

add grafana and fix create vector database bug

update text splitter and provide .env.docker file

update readme and add assets

containerize services

add prometheus for monitoring

Tie up the code and remove css

add english support

integrate with gradio and add css

add closed loop

add prompt file and some minor changes

implement basic features for a linear communication

add load_pdf procedure and tests