Phase 0 deliverable for the beta7 (alpha-only) hardening pass. Enumerates every
synchronous unbounded op (maintenance sweeps, register hot path, content-ack, OTA
endpoints, loop-lag telemetry, log volume, un-evicted per-device Maps), classifies
each exposed/mitigated with worst-case blocking, confirms the two-mechanism spiral
(whole-table prune freeze <-> restart-loop throttle wipe), and sequences items A-E.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
