Per-connection progress bars and the 60 s rolling speed graph the progress dialog needs (docs/03-gui-spec.md §3). Both reuse row/widget state across ticks instead of rebuilding, matching the discipline DownloadTableModel already uses for progress patches. SpeedGraphWidget keeps a fixed ring buffer and one reused QPainterPath — no allocation in paintEvent or addSample. Fixed a real bug found while writing tst_speedgraphwidget: the elapsed timer was started in the constructor, so the very first sample after construction would silently wait up to 1 s to be recorded instead of landing immediately. Tested against mockd (both offline via QTest/offscreen, and manually against a running mockd instance through ProgressDialog once that lands). Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01NSCdCWFXBTSBBK3MzWtJiC
Owner: lane GUI. See ../docs/agents/AGENT-GUI.md and ../docs/03-gui-spec.md. Qt 6 Widgets. Zero download logic. Develops against tools/mockd.