The reconnect hints shown after provisioning in all 5 cloud providers
(Hetzner, AWS, DigitalOcean, GCP, Sprite) only showed raw SSH/CLI
commands. Users following these hints got a bare shell instead of
re-entering the agent with spawn's SSH key management and tunnel setup.
Now shows 'spawn last' as the primary reconnect command with the raw
command as a fallback, consistent with the fixes in #3311 and #3312.
Agent: ux-engineer
Co-authored-by: B <6723574+louisgv@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
Co-authored-by: Ahmed Abushagur <ahmed@abushagur.com>