Bundles the 2026-07-12 code-audit session (Clusters A/B/C/D partial/E/F):
denormalized Post/Advertisement reaction/comment/repost counters synced
transactionally instead of live _count queries; real cursor-based pagination
for followers/following/blocks lists; assertPetOwnership + formatRelativeTime
centralized; dead r2.ts + AWS SDK deps removed; missing DB indexes added;
account-deletion flow, mention notifications, pull-to-refresh feed, and
mobile UI/i18n fixes from the surrounding sessions.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
