openai/gpt-chat-latest → B (4:1)

Side B changes the persistence model for recent votes from a write-trimmed deque to an append-only list with query-time capping, updates the schema version, removes trimming logic, adjusts the in-memory representation, and adds a test verifying only the newest capped window is loaded. Side A is a focused bug fix that skips stickied/pinned Reddit posts during import with a helper and regression test, but its impact is narrower than the storage design change in Side B.