~anthropic/claude-sonnet-latest → B (9:1)

Side B introduces a substantial, working feature: explicit user-initiated entity fetching (vs auto-fetch on browse), full raw payload persistence via a new EntityImported event, dotenv support, config-driven Reddit API base URLs for testability, UI controls, CSS, and an integration test with a mock Reddit server plus fixtures. Side A is a minor, low-risk cleanup removing dead code with a corresponding test update, which is fine but has far less lasting architectural impact than B's design change (raw payload storage/replay, decoupled fetch triggering, and testable API config).