feat: enhance move history with piece type and capture status

modules/ui/src/main/scala/de/nowchess/ui/gui/GUIObserver.scala

@@ -43,6 +43,12 @@ class GUIObserver(private val boardView: ChessBoardView) extends Observer:
 
         case e: PromotionRequiredEvent =>
           boardView.showPromotionDialog(e.from, e.to)
+
+        case e: DrawClaimedEvent =>
+          boardView.updateBoard(e.board, e.turn)
+          showAlert(AlertType.Information, "Draw Claimed", "Draw claimed! The game is a draw.")
+        case e: FiftyMoveRuleAvailableEvent => 
+          boardView.showMessage("50-move rule available! The game is a draw.")
     }
 
   private def showAlert(alertType: AlertType, titleText: String, content: String): Unit =

modules/ui/src/main/scala/de/nowchess/ui/terminal/TerminalUI.scala

@@ -49,6 +49,12 @@ class TerminalUI(engine: GameEngine) extends Observer:
       case _: PromotionRequiredEvent =>
         println("Promote to: q=Queen, r=Rook, b=Bishop, n=Knight")
         synchronized { awaitingPromotion = true }
+      case _: DrawClaimedEvent =>
+        println("Draw claimed! The game is a draw.")
+        println()
+        print(Renderer.render(engine.board))
+      case _: FiftyMoveRuleAvailableEvent =>
+        println("50-move rule available! The game is a draw.")
 
   /** Start the terminal UI game loop. */
   def start(): Unit =