Add a todo.update frame (server->app) carrying the agent's full current todo list. The gateway emits it whenever the hermes todo tool completes (the tool result is authoritative even for merge writes) and re-sends a snapshot right after hello so a reconnecting device re-learns the plan. Ephemeral: never outboxed. The app renders it as a compact strip above the composer (max 3 lines, the rest scrollable) mirroring the hermes desktop composer status stack: pending = hollow ring, in_progress = spinner, completed = green check, cancelled = struck through. It auto-scrolls to the current task whenever the active task changes, and hides itself once the list is empty or fully resolved.