Calls summarize_draw_games(state.draw_game_snapshots) after the existing
win-type injection and embeds the result under data['drawGames'] before
returning JSONResponse. The likelyCause field immediately surfaces which
deck most often leads at timeout so the Dictate of Kruphix loop theory
can be confirmed from the dashboard without log-diving.
Part of fix#176 (companion to services/draw_game_analyzer.py).