perf(macos): eliminate redundant model rebuilds in AssistantProgressView#25256

Jasonnnz merged 2 commits into

mainvellum-ai/vellum-assistant:mainfrom

devin/1776096661-fix-progress-view-perfvellum-ai/vellum-assistant:devin/1776096661-fix-progress-view-perfCopy head branch name to clipboard