`backend setup/status/teardown` manage host prerequisites only and never
open the store, but the CLI dispatcher ran the schema-migration gate before
every command. On a non-TTY runner the gate's `Migrate now? [y/N]` prompt
reads EOF and refuses, so `backend status --backend=firecracker` exits 1 —
breaking the Firecracker CI preflight on any host without a pre-migrated DB.
Exempt `backend` from the gate; store-touching commands stay gated.
Fixes#419
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S1qRZTJC6qgBsUSjNrBdkX
didericis