feat(ui): port retail jump power bar

Import gmFloatyPowerBarUI LayoutDesc 0x21000072, teach the meter factory its stateful single-image shape, and project the movement-owned retail jump charge through a focused retained controller. Preserve authored resize constraints and state-managed visibility, with named-decomp pseudocode plus controller, movement, and production-DAT conformance coverage.

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

tests/AcDream.App.Tests/UI/Layout/DatWidgetFactoryTests.cs

@@ -313,6 +313,37 @@ public class DatWidgetFactoryTests
         Assert.Equal(0u,       m.FrontRight);
     }
 
+    [Fact]
+    public void BuildMeter_StatefulSingleImageShape_MapsNumericFillStatesAndHidesDirectRange()
+    {
+        const uint TrackFile = 0x06004D0Bu;
+        const uint JumpState = 0x10000042u;
+        const uint JumpFile = 0x06001354u;
+        const uint RangeFile = 0x0600715Eu;
+
+        var meter = new ElementInfo { Type = 7, Id = 0x10000034u, Width = 600, Height = 15 };
+        meter.StateMedia[""] = (TrackFile, 1);
+
+        var fills = new ElementInfo { Type = 3, Id = 2u, ReadOrder = 2 };
+        fills.States[JumpState] = new UiStateInfo { Id = JumpState, Name = "JumpMode" };
+        fills.StateMedia["JumpMode"] = (JumpFile, 1);
+        meter.Children.Add(fills);
+
+        var range = new ElementInfo { Type = 3, Id = 0x100005EEu, ReadOrder = 1 };
+        range.StateMedia[""] = (RangeFile, 1);
+        meter.Children.Add(range);
+
+        var result = Assert.IsType<UiMeter>(DatWidgetFactory.Create(meter, NoTex, null));
+
+        Assert.Equal(TrackFile, result.BackTile);
+        Assert.Equal(0u, result.FrontTile);
+        Assert.True(result.TrySetRetailState(JumpState));
+        Assert.Equal(JumpState, result.ActiveRetailStateId);
+        Assert.Equal(JumpFile, result.FrontTile);
+        Assert.NotEqual(RangeFile, result.BackTile);
+        Assert.NotEqual(RangeFile, result.FrontTile);
+    }
+
     // ── Test 6: Meter slice extraction (the important one) ───────────────────
 
     /// <summary>