fix(combat): match retail live attack feedback

Keep AttackDone control statuses out of chat, preserve dead motion across zero-velocity position updates, render the authored power meter from right to left, and retain the rotatable viewer offset during target tracking.

Co-Authored-By: Codex <codex@openai.com>

tests/AcDream.App.Tests/Rendering/RetailChaseCameraTests.cs

@@ -141,6 +141,33 @@ public class RetailChaseCameraTests
         Assert.Null(RetailChaseCamera.ComputeTrackedHeading(pivot, pivot));
     }
 
+    [Fact]
+    public void DesiredPose_TrackedHeadingWithNoOrbit_PlacesBoomBehindTargetDirection()
+    {
+        var pivot = new Vector3(10f, 20f, 1.5f);
+
+        var (eye, forward) = RetailChaseCamera.ComputeDesiredPose(
+            pivot, Vector3.UnitX, distance: 5f, pitch: 0f, viewerYawOffset: 0f);
+
+        Assert.Equal(new Vector3(5f, 20f, 1.5f), eye);
+        Assert.Equal(Vector3.UnitX, forward);
+    }
+
+    [Fact]
+    public void DesiredPose_TrackedHeadingRetainsViewerOffsetOrbitAndLooksAtPivot()
+    {
+        var pivot = new Vector3(10f, 20f, 1.5f);
+
+        var (eye, forward) = RetailChaseCamera.ComputeDesiredPose(
+            pivot, Vector3.UnitX, distance: 5f, pitch: 0f,
+            viewerYawOffset: MathF.PI / 2f);
+
+        Assert.Equal(10f, eye.X, 5);
+        Assert.Equal(15f, eye.Y, 5);
+        Assert.Equal(1.5f, eye.Z, 5);
+        Assert.Equal(Vector3.Normalize(pivot - eye), forward);
+    }
+
     [Fact]
     public void Basis_HorizontalHeading_IsOrthonormalAndRightHanded()
     {