feat(mosstank): add VTank-style automation PoC

tests/AcDream.Runtime.Tests/Gameplay/PlayerMouseLookMovementTests.cs

@@ -424,6 +424,63 @@ public sealed class PlayerMouseLookMovementTests
         Assert.False(controller.PrepareForAttackRequest());
     }
 
+    [Fact]
+    public void PersistentCommandRetakesTurnAfterServerPostureAcknowledgement()
+    {
+        var controller = CreateController();
+        var command = new MovementInput(
+            TurnRight: true,
+            IsPersistentCommand: true);
+
+        MovementResult started = controller.Update(1f / 60f, command);
+        Assert.Equal(MotionCommand.TurnRight, started.TurnCommand);
+
+        // The live MossTank failure: ACE acknowledges an explicit combat-mode
+        // change with a non-autonomous Magic + Ready movement event after the
+        // plugin has already begun facing its target.
+        controller.SetLastMoveWasAutonomous(false);
+        controller.Motion.MoveToInterpretedState(new InboundInterpretedState
+        {
+            CurrentStyle = 0x80000049u,
+            ForwardCommand = MotionCommand.Ready,
+            ForwardSpeed = 1f,
+            TurnCommand = 0u,
+            TurnSpeed = 1f,
+        });
+        Assert.Equal(0u, controller.Motion.InterpretedState.TurnCommand);
+
+        MovementResult resumed = controller.Update(1f / 60f, command);
+
+        Assert.True(resumed.ShouldSendMovementEvent);
+        Assert.Equal(
+            MotionCommand.TurnRight,
+            controller.Motion.InterpretedState.TurnCommand);
+        Assert.Equal(MotionCommand.TurnRight, resumed.TurnCommand);
+    }
+
+    [Fact]
+    public void PhysicalHeldKeyKeepsRetailEdgeBehaviorAfterServerPosture()
+    {
+        var controller = CreateController();
+        var physical = new MovementInput(TurnRight: true);
+        _ = controller.Update(1f / 60f, physical);
+
+        controller.SetLastMoveWasAutonomous(false);
+        controller.Motion.MoveToInterpretedState(new InboundInterpretedState
+        {
+            CurrentStyle = 0x80000049u,
+            ForwardCommand = MotionCommand.Ready,
+            ForwardSpeed = 1f,
+            TurnCommand = 0u,
+            TurnSpeed = 1f,
+        });
+
+        MovementResult held = controller.Update(1f / 60f, physical);
+
+        Assert.False(held.ShouldSendMovementEvent);
+        Assert.Equal(0u, controller.Motion.InterpretedState.TurnCommand);
+    }
+
     private static PlayerMovementController CreateController()
     {
         var engine = new PhysicsEngine();