Closes the engine half of drill finding F2: user files under appdata/<stack>
had no customer recovery path (operator copy-back only).
- RestoreTier2Files(stack): single-flight with backup/restore; ALL refusals
before any stop (no Tier-2 record / LastRun empty / copy dir absent →
"nincs másodlagos fájlmásolat"; Tier-2 drive disconnected; live drive
disconnected/decommissioned — Hungarian, flash-ready); source is the
RECORDED CrossDriveBackup.DestinationPath (never a fresh selectTier2Target);
stop → copy → start → waitForHealthy; copy/restart errors surface (F17).
- rsyncRestoreMissing: rsyncMirror's exec shape with the OPPOSITE-direction
flags: -a --ignore-existing --itemize-changes — existing live files are
never overwritten, nothing is ever deleted (the --delete trap this task
exists to avoid). Count = ">f" itemize lines (pure countRestoredFiles).
- restoreFilesCopier seam so orchestration tests never shell out; the one
FS-level test of the real rsync is LookPath-guarded (runs on the Linux
build server + live validation).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
