Update dbtypes and doctypes allowed

update fast intent

update chatbot

update prompt system for generate audio text

Add audio_text field in room endpoint

[NOTICKET] Remove threshold retriever

Feat: Delete embedding when delete document

[NOTICKET] Tuning prompt generate audio text

Feat: Chat - add audio_text field for TTS, Document - delete, System Prompt Tuning

Feat: audio text streaming, document handler, db handler

feat: persist RAG sources to DB and return them in room detail

feat: chat history, room soft-delete, and user migration to PostgreSQL

[NOTICKET] Demo agentic agent