openai/gpt-chat-latest → A (5:1)

Side A makes substantive architectural changes: it introduces a RocksDB-backed durable storage crate, moves large Reddit JSON payloads out of the in-memory tree into a persistent entity store, and replaces whole-log loading with streaming event replay to reduce startup memory, updating replay and integration tests accordingly. Side B primarily adds deployment infrastructure, a live dashboard, SSE status/audit UI, and CI/CD configuration, which improves operations and visibility but has much less impact on the project's core functionality and architecture.