openai/gpt-chat-latest → A (5:1)

Side A establishes the core invariant that vote ratios must have both sides between 1 and 100 by enforcing it in the DSL parser, UI POST handler, and reducer, and adds regression tests covering parser and integration behavior. Side B is a worthwhile follow-up that fixes a reducer edge case by moving the zero-ratio early return before item registration and voted-pair insertion, preventing ghost state, but it is a narrower correction built on the broader validation introduced by Side A.