Improve table legibility and showdown focus

app/src/main/java/com/jsjdesigns/poker/HandSummary.kt

@@ -26,6 +26,8 @@ data class PotAwardSummary(
  */
 data class HandSummary(
     val handNumber: Int,
+    /** Public community cards retained so the modal can explain the winning hand. */
+    val board: List<Int>,
     /** Display labels in the engine's winner order; the human seat is always "You". */
     val winnerLabels: List<String>,
     /** Derived from winner seat indices, never from a player-controlled name. */
@@ -101,6 +103,7 @@ fun handSummaryFor(
 
     return HandSummary(
         handNumber = handNumber,
+        board = result.board.toList(),
         winnerLabels = result.winners.map { winner ->
             if (winner == heroSeat) "You" else seatNames[winner]
         },