add main.py for server initialization; update file handling in DatabaseUpdater and improve context retrieval in ToolCall

add context tool

migrate to langchain pinecone and use groq tool call model

fix the bugs

remove rag tool for better performance

add tool calls and implemented knowledge base

implement chat history

make chat client async

add api to update the pinecone database

integrate with ui

modify similarity search function to provide only the necessary context

resolving comments

implement logger for connection open and close

integrate with chat module

implement the logic for websockets