Use cancellable, generation-aware reads and removable virtual scrolling for chat and event viewers. Constrain virtual rows to fixed single-line heights, clean busy state, stop Escape propagation, and cover dialog, menu, palette, and virtual list interactions.
Stream capability-authorized chat reads with cancellation, virtualize viewer rendering, centralize modal focus management, and add keyboard-accessible queue and VOD menus. Expose command palette combobox state and keep the document language synchronized with the selected locale.
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