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

Side B fixes a genuine correctness bug (feed catch-up relying on timestamps that can collide or move backwards) with a principled ingest-order anchor, deduplicates duplicated code paths into a shared rpc_feed helper, and adds thorough targeted integration tests for multi-user/private-room visibility. Side A is largely infrastructure/deploy plumbing (Dockerfile, fly.toml, CI) plus a UI/dashboard feature with generated CSS/JS, which is useful operationally but lower in durable design value and correctness impact than B's bugfix.