feat: add ai agent http agent

texas_holdem/engine.py

@@ -79,6 +79,12 @@ class TableGame:
         self._advance_button()
         assert self.button_index is not None
 
+        # Notify every agent that a new hand is starting. Pushing here (as
+        # opposed to after ``_award_pots``) lets HTTP agents seed a fresh
+        # session with the latest table state and per-hand history before
+        # any decision is asked of them.
+        self._broadcast_game_update()
+
         self._deal_hole_cards(deck)
         small_blind_index, big_blind_index = self._blind_indexes()
         self._post_blind(small_blind_index, "small_blind", self.small_blind)
@@ -115,9 +121,6 @@ class TableGame:
             finished_at=time(),
         )
         self.hand_summaries.append(summary)
-        # Notify every agent so HTTP-backed clients can render the just
-        # finished hand. Failures here must never abort the table.
-        self._broadcast_game_update()
         return summary
 
     def run_hands(self, max_hands: int, until_one_left: bool = False) -> list[HandSummary]: