9b250b97c9
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