openai/gpt-chat-latest → A (3:2)

Side A makes a substantive architectural change by removing legacy GitDiscovery projection paths and requiring Evidence-envelope-backed data throughout the epoch and commit pages, simplifying code, eliminating fallback logic, tightening the Emission schema, and updating tests accordingly. Side B adds useful UI improvements (vote counts, HUD unpin action, related styling, and tests), but these are feature enhancements rather than a foundational cleanup of the project's data model and evidence handling.