follower-item-built-from-shared-payload

Build a follower's playable item from the payload the shared session carries, not by re-resolving it from your own catalogue — a local resolver that infers the rendition from artwork shape lands on the wrong one, and a per-item network round trip inside the apply collector wedges every later command behind it. Use when a follower in a synchronised room gets silent video where the source has audio, or when one slow…