#255 feat(cli): enable shell tab-completion

[Anonymous]

Originally created by: fu351

Shell tab-completion is explicitly disabled: typer.Typer(add_completion=False, ...) in src/doberman/cli/main.py. With ~20 top-level commands (plus 2fa/password/hook sub-apps), completion is real ergonomics, and Typer ships it for free.

Task: enable completion (drop add_completion=False), verify doberman --install-completion / --show-completion appear and work in at least one shell, and add a one-line mention to README's quickstart or CLI docs.

Watch for: any tests that assert exact --help text (run the suite; fix pure-text assertions only).

Done when: completion installs cleanly in your shell and CI is green.

[Anonymous]

Ticket changed by: fu351

• status: open --> closed