~anthropic/claude-sonnet-latest → A (65:35)

A adds a substantial, tested infrastructure change (RocksDB-backed entity storage, streaming event replay) that reduces startup RAM and cleanly separates raw payloads from in-memory tree state, verified by new unit/integration tests. B is a smaller but real bugfix (mandatory OAuth with retry-on-401/403 and better error truncation) that fixes a genuine production reliability issue, but its scope and lasting architectural impact are narrower than A's.