Refactor get_summaries and chat endpoints to improve logging and remove unnecessary whitespace

Add save_summary and get_summaries endpoints to FastAPI app; refactor create_chroma_db to handle single document input

Enhance FastAPI application with RAG chatbot integration

Add CORS middleware to FastAPI app and update summarize endpoint to accept multiple input fields (urls, codes, notes). Enhance graph logic to process new input structure and return detailed summary response.

Add summarize endpoint to app, update Dockerfile to include .env, and expand requirements.txt

Add application file