DockerBottlePlatform.launch already runs 'docker build' on every
start, and the layer cache makes no-change rebuilds nearly free.
Anything 'cli.py build' did, 'cli.py start' does for you.
One file per subcommand under claude_bottle/cli/, with shared constants
and the tty helper in _common.py and dispatch in __init__.py. The
public import (from claude_bottle.cli import main) is unchanged, so
the root cli.py entrypoint and the test suite see no surface change.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>