openai/gpt-5.3-chat → A (9:1)

Commit A is a substantial architectural change: it removes the persistent entity store and shifts Reddit content to an ephemeral, TTL-based projection model. This touches many core subsystems (events, journal, projection, storage schema, reducer, state management, Reddit ingestion flow), introduces new eviction logic, simplifies event semantics, and updates tests accordingly. It meaningfully changes system behavior, data lifecycle, and compliance with external API constraints. In contrast, Commit B is an initial seed adding assorted scripts, experimental modules, and large standalone components (parser, ranking, etc.), but without clear integration into the existing system. While large in size, B is more of a scaffold or dump of new files, whereas A delivers a cohesive, impactful refactor to the live architecture.