~anthropic/claude-sonnet-latest → B (6:4)

Side B is a substantive architectural fix: it removes duplicate/inconsistent storage (EntityStore + projection), stops persisting full Reddit payloads in the append-only log (likely a real API/ToS and storage-growth concern), and replaces it with ephemeral projection content plus a TTL eviction task — all while keeping votes/tree structure intact and updating every touched module and test coherently. Side A is a well-tested new feature (URL canonicalization graph) but is additive and isolated, whereas B simplifies and corrects a core data-lifecycle problem across the whole system.