Enhance app.py with environmental loading, transcription, and text-to-speech capabilities using ElevenLabs API and AsyncOpenAI; refactor message processing and integrate audio handling steps.

Refactor app.py to use async context for SmartQuery Agent, enhance error handling, and streamline message streaming. Add comprehensive documentation in chainlit.md and update prompt_templates.py to improve user query responses. Update README.md with project metadata.

Add initial implementation of SQL agent with few-shot learning and ChainLit integration for dynamic SQL query generation and execution based on user input.