refactor(core): enhance MoveType to support capture flag and update related logic

modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala

@@ -242,8 +242,7 @@ class GameEngine(
           case PromotionPiece.Bishop => "B"
           case PromotionPiece.Knight => "N"
         s"${move.to}=$ppChar"
-      case MoveType.Normal =>
-        val isCapture = boardBefore.pieceAt(move.to).isDefined
+      case MoveType.Normal(isCapture) =>
         boardBefore.pieceAt(move.from).map(_.pieceType) match
           case Some(PieceType.Pawn) =>
             if isCapture then s"${move.from.file.toString.toLowerCase}x${move.to}"

modules/core/src/test/scala/de/nowchess/chess/engine/GameEnginePromotionTest.scala

@@ -158,7 +158,7 @@ class GameEnginePromotionTest extends AnyFunSuite with Matchers:
       def legalMoves(context: GameContext, square: Square): List[Move] =
         DefaultRules.legalMoves(context, square).map { m =>
           m.moveType match
-            case MoveType.Promotion(_) => Move(m.from, m.to, MoveType.Normal)
+            case MoveType.Promotion(_) => Move(m.from, m.to, MoveType.Normal())
             case _                     => m
         }
       def allLegalMoves(context: GameContext): List[Move] =

modules/core/src/test/scala/de/nowchess/chess/logic/HistoryMoveTest.scala

@@ -1,48 +0,0 @@
-package de.nowchess.chess.logic
-
-import de.nowchess.api.board.*
-import de.nowchess.api.move.PromotionPiece
-import de.nowchess.api.game.HistoryMove
-import org.scalatest.funsuite.AnyFunSuite
-import org.scalatest.matchers.should.Matchers
-
-class HistoryMoveTest extends AnyFunSuite with Matchers:
-
-  private def sq(f: File, r: Rank): Square = Square(f, r)
-
-  test("Move with promotion records the promotion piece"):
-    val move = HistoryMove(sq(File.E, Rank.R7), sq(File.E, Rank.R8), None, Some(PromotionPiece.Queen))
-    move.promotionPiece should be (Some(PromotionPiece.Queen))
-
-  test("Normal move has no promotion piece"):
-    val move = HistoryMove(sq(File.E, Rank.R2), sq(File.E, Rank.R4), None, None)
-    move.promotionPiece should be (None)
-
-  test("HistoryMove default values are compatible with normal pawn move"):
-    val move = HistoryMove(sq(File.E, Rank.R2), sq(File.E, Rank.R4))
-    move.castleSide shouldBe None
-    move.promotionPiece shouldBe None
-    move.pieceType shouldBe PieceType.Pawn
-    move.isCapture shouldBe false
-
-  test("HistoryMove stores castle side and capture marker"):
-    val move = HistoryMove(
-      from = sq(File.E, Rank.R1),
-      to = sq(File.G, Rank.R1),
-      castleSide = Some("Kingside"),
-      pieceType = PieceType.King
-    )
-    move.castleSide shouldBe Some("Kingside")
-    move.pieceType shouldBe PieceType.King
-
-  test("HistoryMove stores explicit piece and capture flags"):
-    val move = HistoryMove(
-      from = sq(File.G, Rank.R1),
-      to = sq(File.F, Rank.R3),
-      pieceType = PieceType.Knight,
-      isCapture = true
-    )
-    move.pieceType shouldBe PieceType.Knight
-    move.isCapture shouldBe true
-
-