§C of the 1.8.0 hardening plan: persistence writes whose Results were
silently dropped now log a warn/error with context (mesh contact
blocklist, scheduler state, content catalog, container registry,
update state, bitcoin relay, package install markers, server shutdown
state). §I: federation tombstones are now flushed durably in
storage/sync so cleared peers can't resurrect after a crash.
Tracker updated with shas in docs/1.8.0-RELEASE-HARDENING-PLAN.md.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>