Boti: pauza pred vedenim kopky, spravne poradie broadcastov po tahu

Bot doteraz vedel zahodit prvu kartu novej kopky uz po BOT_MOVE_DELAY_SECONDS
(0.8s), zatial co frontend zmetaciu animaciu predoslej kopky prehraval
1650ms -- karta tak "vyletela" uprostred zmetania. _run_bot_turns teraz pri
vedeni novej kopky caka TRICK_SWEEP_SECONDS (1.7s), zhodne s SETTLE_MS+
COLLECT_MS v GameTable.tsx.

_run_bot_turns tiez posielal player_cards PRED game_status (opacne ako
human play_card handler) -- pri prechode do noveho kola tak klient dostal
novu ruku skor, nez vedel, ze zacalo nove kolo, a fixne ju hned zobrazil.
Poradie broadcastov je teraz zhodne s human handlerom.

GameTable/Hand: ruka noveho kola sa zobrazi az po dobehnuti zmetacej
animacie poslednej kopky predchadzajuceho kola (displayedHand + freeze
efekt), a Hand.tsx rezervuje fixny priestor pre karty aj ked je ruka
docasne prazdna, aby layout neposkakoval.

tests/test_bots.py: nulovanie TRICK_SWEEP_SECONDS v setUpClass, aby testy
zostali rychle.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/test_bots.py

@@ -67,6 +67,7 @@ class BotAccountCase(unittest.TestCase):
     def setUpClass(cls):
         run(init_db())
         api.BOT_MOVE_DELAY_SECONDS = 0
+        api.TRICK_SWEEP_SECONDS = 0
 
     def test_username_conventions(self):
         self.assertTrue(bots.is_bot_username("bot:heuristic-1"))
@@ -115,6 +116,7 @@ class BotTurnLoopCase(unittest.TestCase):
     def setUpClass(cls):
         run(init_db())
         api.BOT_MOVE_DELAY_SECONDS = 0
+        api.TRICK_SWEEP_SECONDS = 0
 
     def setUp(self):
         api.games.clear()