CLI commands for deepagents init, dev, and deploy.
Registered with the CLI via setup_deploy_parsers in main.py.
Register the top-level init, dev, and deploy subparsers.
The three commands used to live under deepagents deploy {init,dev}
but are now flat: deepagents init, deepagents dev, and
deepagents deploy. This function registers all three on the root
subparsers object.
Execute the deepagents init command.
Execute the deepagents dev command.
Execute the deepagents deploy command.
