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

Side B makes concrete, working improvements: it upgrades the dev fixture script to use cargo-watch for live-reload, persist fixture data across runs (rebase/reuse summary), prefer a stable port, and clean up UI markup in forum.rs — all directly usable, testable code changes. Side A is purely a planning document (PLAN.md) with no code changes; while it may guide future work, it has no immediate functional impact and its value depends entirely on future execution, making B's tangible, working tooling improvement more durable/immediately valuable.