Why: the shipped chat column showed nothing until a run finished, blew up markdown spacing, and gutted long documents before the model saw them. Evidence: composite make test green over this combo (backend 16 pkgs incl. new ctxasm/ingest tests, frontend 9, ui 23); headless E2E on the mock backend confirmed live thinking/tool/text streaming and compact list geometry. Impact: pins frontend 616795b, ui 0689d72, backend fe4887b; task card records results and remaining user-side acceptance on a real model. Refs: feature/chat-live-quality task card.
ui
@ 0689d72b63