Improved bot & added docker compose support with profiles

[m4t7w]

Changes made:

• Added support for docker compose with profiles (using python:3.13-slim as base image)
• Added support for other sqldbs (postgres, mariadb, sqlite)
• Added initialization logic for dbs (create tables if not already present)
• New db column for saving last language used by users
• Refractored startup logic
• Added requirements.txt
• Added config supports with .env
• Logger changes to rotating time based logger
• Updated readme with docker compose and docker-less setup

Commands added:

• /tts to use the bot without inline mode (e.g. in groups)
• /to_voice to convert multimedia files to Telegram Voice format
• /delete_my_data & /privacy to comply with gdpr
• /delete_user {ID} to delete manually delete a user from db (admin only)
• /cmd see admin commands (admin only)
• /log upload log files (owner only)

Commands modified:

• /addaudio:
  • can be used by replying to an already uploaded file
  • not limited anymore to only TelegramVoice, but user can save normal audios & videos
• Inline result menu is now ordered with last languages used by the user
• /start and /help modified for better readability