The recovery playbook now exits after scaling to 1. The container
entrypoint handles snapshot download (60+ min) and validator startup
autonomously. Removed all polling/verification steps that would
time out waiting.
Added scripts/check-status.py for monitoring download progress,
validator slot, gap to mainnet, catch-up rate, and ramdisk usage.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>