The draw-state panel and the top chain-status bar previously showed the
same "Estrazione in corso" text for closing/drawing/paying_out alike. Now
each phase gets its own copy (closing: waiting for last bet confirmation;
drawing: waiting for the draw block; paying_out: winner drawn from block
#N, payout in flight), using the round data already returned by the API.
Also drops the now-redundant pastDeadline fast-poll branch: status flips
to "closing" the instant the timer expires (see the scheduler change),
so isDrawing alone already covers that window.
davide
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