Validated the controller offbox restic-SFTP tier direct from the residential
demo box (IPv4-only egress) end-to-end through the real endpoints: reach on
:23 (PASS), chown-immune restic init (works where PBS-direct failed),
config→run→restore green, sub-account isolation confirmed. Residential upload
~4.3 MB/s. Concentrator NOT needed. KEY BLOCKER F1: offbox reads recovery unit
from the app data-drive namespace root, not the actual backup-drive location →
silently backs up 0 apps (ok status) on multi-drive setups. Spike only,
synthetic data, torn down.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
