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F-CRIT-2 marked SHIPPED + PROVEN-LIVE: NewestArchiveTime now counts only plausibly-complete entries (measured 1 MiB floor), verified by replaying campaign fault 2 on demo-hp in both directions. Files two follow-ups: - R-99: prune never REMOVES phantoms. It does NOT count them toward keep-last (dry-run kept 2 real + the phantom), so there is no retention/data-loss bug — but they accumulate one per aborted upload. - F-CRIT-1: filed READY-HIGHEST. Campaign 8's other HIGH finding, untouched by this fix.