Fix types in database package

Add '_' prefix to private methods throughout project, cleans up formatting and comments/docstrings

more explicit control flow

Move env var validation util to config, refactor to fix linting errors across project

Update .env.example and no longer enable debug logging based on env variable and base it on use of 'dev' environment instead.

Add distinct environments for application: dev and prod, app defaults to dev if APP_ENV is not specified

Remove unused imports

Update file clean up logic to delete audio files older than 30 minuteds when writing new audio file to static/audio directory.

Add logic to clean up temp audio files on application exit

Refactor tts integration functions to write audio to file and return file path, audio players to play mp3 file written to temp folder, fix audioplayer loading, remove unused imports

Update eleven labs integration to consume the voice generation api

Add formatter (black) and format all code in src directory— using black default formatting configuration

Update documentation and fix typos across project

Clean up docstrings across files

Clean up documentation, remove orphaned utility, create constants file to store constants

Update Hume integration to randmonly pick a voice from a predefined list of top voices

Remove excessive logging from debugging

Organize project structure