Replace standalone Telegram bot with full CodeAnywhere framework fork.
BetterBot shares all framework code and customizes only:
- instance.py: BetterBot identity, system prompt, feature flags
- tools/site_editing/: list_files, read_file, write_file with auto git push
- .env: model defaults and site directory paths
- compose/: Docker setup with betterlifesg + memoraiz mounts
- deploy script: RackNerd with Infisical secrets
