~anthropic/claude-sonnet-latest → A (6:4)

Side A introduces the core architecture (form_template substitution system, HtmlUiAction enum, parse_html_ui_from_form, and the new POST /ui endpoint) that subsequent features—including Side B's own commit—depend on and reuse; it's foundational, well-documented, and covered by templating unit tests. Side B is a solid, well-tested feature addition (copy-to-clipboard for garden rankings) but it's a narrow extension built entirely on the infrastructure Side A created, contributing less lasting architectural value even though its test coverage (unit/integration/browser) is thorough.