feat(studio): Character panel pilot — gmCharacterInfoUI report text + menu-bar picker

Task A — CharacterController (LayoutDesc 0x2100002E)
- CharacterSheet.cs: data record for all fields used by the report sections,
  with retail property-id citations per field (DateOfBirth 0x62, TotalPlayTime
  0x7d, NumDeaths 0x2b, SkillCredits 0xb5/0xc0, AugmentationStat 0x162,
  EncumbranceVal 0x5/0xe6).
- CharacterController.cs: static Bind(layout, data, datFont) wires element
  0x1000011d (m_pMainText, confirmed gmCharacterInfoUI::PostInit 0x004b86f0) as
  a UiText; LinesProvider builds the report. Report section order mirrors
  gmCharacterInfoUI::Update (0x004ba790):
  1. UpdatePlayerBirthAgeDeaths 0x004b8cb0 — birth/age/deaths
  2. UpdateEnduranceInfo 0x004b8eb0 — vitals (H/S/M cur/max)
  3. UpdateInnateAttributeInfo 0x004b87e0 — 6 attrs InqAttribute 1,2,4,3,5,6
     = Strength, Endurance, Quickness, Coordination, Focus, Self
  4. UpdateFakeSkills 0x004b8930 — skill credits (InqInt 0xb5 / 0xc0)
  5. UpdateAugmentations 0x004b9000 — aug name (InqInt 0x162 switch 1..0xb)
  6. UpdateLoad 0x004b8a20 — burden cur/max/pct
  Element 0x1000011d imports as UiText (Type 12); multi-line text set via
  LinesProvider — same pattern as ChatWindowController transcript.
- SampleData.SampleCharacter(): plausible retail-scale CharacterSheet fixture.
- FixtureProvider.Populate case 0x2100002Eu: CharacterController.Bind with
  SampleData.SampleCharacter + VitalsDatFont.
- CharacterControllerTests.cs: 10 pure data-wiring + content tests (no GL/dats).

Task B — Studio panel picker → main menu bar
- StudioWindow.OnRender: replaced the floating "Studio" toolbar window (kToolbarH
  40px) with ImGui.BeginMainMenuBar / EndMainMenuBar (kMenuBarH 22px). Panel
  picker combo now lives in the always-on-top menu bar and cannot be occluded by
  Tree/Canvas/Props panes. paneY reduced from 40→22, freeing ~18px for the canvas.

Build: dotnet build green (0 CS errors; DLL-lock warnings are AcDream.App being
live — not compile errors). Full suite: 619 passed, 2 skipped.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

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

@@ -0,0 +1,184 @@
+using AcDream.App.Studio;
+using AcDream.App.UI;
+using AcDream.App.UI.Layout;
+
+namespace AcDream.App.Tests.UI.Layout;
+
+/// <summary>
+/// Unit tests for <see cref="CharacterController"/> and <see cref="SampleData.SampleCharacter"/>.
+/// No dats, no GL — pure data-wiring + report-content tests.
+/// </summary>
+public class CharacterControllerTests
+{
+    // ── Test 1: Bind finds the main text element and sets LinesProvider ───────
+
+    [Fact]
+    public void Bind_SetsLinesProviderOnMainText()
+    {
+        var text = new UiText();
+        var layout = FakeLayout((CharacterController.MainTextId, text));
+
+        CharacterController.Bind(layout, SampleData.SampleCharacter);
+
+        // LinesProvider must be replaced (default returns empty).
+        var lines = text.LinesProvider();
+        Assert.True(lines.Count > 0, "Expected non-empty report after Bind");
+    }
+
+    // ── Test 2: Report contains all six attribute names (decomp order 1,2,4,3,5,6) ───
+
+    [Fact]
+    public void Bind_ReportContainsAllSixAttributes()
+    {
+        var text = new UiText();
+        var layout = FakeLayout((CharacterController.MainTextId, text));
+
+        CharacterController.Bind(layout, SampleData.SampleCharacter);
+
+        var allText = string.Join("\n", text.LinesProvider().Select(l => l.Text));
+
+        Assert.Contains("Strength",     allText);
+        Assert.Contains("Endurance",    allText);
+        Assert.Contains("Quickness",    allText);
+        Assert.Contains("Coordination", allText);
+        Assert.Contains("Focus",        allText);
+        Assert.Contains("Self",         allText);
+    }
+
+    // ── Test 3: Report contains vitals section ────────────────────────────────
+
+    [Fact]
+    public void Bind_ReportContainsVitals()
+    {
+        var text = new UiText();
+        var layout = FakeLayout((CharacterController.MainTextId, text));
+
+        CharacterController.Bind(layout, SampleData.SampleCharacter);
+
+        var allText = string.Join("\n", text.LinesProvider().Select(l => l.Text));
+
+        Assert.Contains("Health",  allText);
+        Assert.Contains("Stamina", allText);
+        Assert.Contains("Mana",    allText);
+    }
+
+    // ── Test 4: Report contains encumbrance / burden section ─────────────────
+
+    [Fact]
+    public void Bind_ReportContainsBurden()
+    {
+        var text = new UiText();
+        var layout = FakeLayout((CharacterController.MainTextId, text));
+
+        CharacterController.Bind(layout, SampleData.SampleCharacter);
+
+        var allText = string.Join("\n", text.LinesProvider().Select(l => l.Text));
+
+        Assert.Contains("Burden",   allText);
+        Assert.Contains("Capacity", allText);
+    }
+
+    // ── Test 5: Report contains the sample character's name ──────────────────
+
+    [Fact]
+    public void Bind_ReportContainsSampleName()
+    {
+        var text = new UiText();
+        var layout = FakeLayout((CharacterController.MainTextId, text));
+
+        CharacterController.Bind(layout, SampleData.SampleCharacter);
+
+        var allText = string.Join("\n", text.LinesProvider().Select(l => l.Text));
+
+        // SampleData.SampleCharacter().Name == "Studio Player"
+        Assert.Contains("Studio Player", allText);
+    }
+
+    // ── Test 6: Missing element id is a no-op (no throw) ─────────────────────
+
+    [Fact]
+    public void Bind_MissingElement_DoesNotThrow()
+    {
+        // Layout does not contain MainTextId — Bind must silently skip.
+        var layout = FakeLayout();   // empty layout
+
+        // Must not throw.
+        CharacterController.Bind(layout, SampleData.SampleCharacter);
+    }
+
+    // ── Test 7: Element that is NOT a UiText is silently skipped ─────────────
+
+    [Fact]
+    public void Bind_WrongElementType_DoesNotThrow()
+    {
+        // Place a UiMeter at the MainTextId — Bind must skip (not crash on wrong type).
+        var meter = new UiMeter();
+        var layout = FakeLayout((CharacterController.MainTextId, meter));
+
+        CharacterController.Bind(layout, SampleData.SampleCharacter);
+        // No exception; meter is unchanged.
+    }
+
+    // ── Test 8: SampleCharacter fixture has non-zero attribute values ─────────
+
+    [Fact]
+    public void SampleCharacter_AttributesAreNonZero()
+    {
+        var s = SampleData.SampleCharacter();
+
+        Assert.True(s.Strength     > 0, "Strength must be > 0");
+        Assert.True(s.Endurance    > 0, "Endurance must be > 0");
+        Assert.True(s.Quickness    > 0, "Quickness must be > 0");
+        Assert.True(s.Coordination > 0, "Coordination must be > 0");
+        Assert.True(s.Focus        > 0, "Focus must be > 0");
+        Assert.True(s.Self         > 0, "Self must be > 0");
+    }
+
+    // ── Test 9: SampleCharacter fixture has coherent vitals ──────────────────
+
+    [Fact]
+    public void SampleCharacter_VitalsAreCoherent()
+    {
+        var s = SampleData.SampleCharacter();
+
+        Assert.True(s.HealthCurrent  > 0 && s.HealthCurrent  <= s.HealthMax,  "Health cur must be in [1, max]");
+        Assert.True(s.StaminaCurrent > 0 && s.StaminaCurrent <= s.StaminaMax, "Stamina cur must be in [1, max]");
+        Assert.True(s.ManaCurrent    > 0 && s.ManaCurrent    <= s.ManaMax,    "Mana cur must be in [1, max]");
+    }
+
+    // ── Test 10: Report contains attribute VALUES from the fixture ────────────
+
+    [Fact]
+    public void Bind_ReportContainsSampleAttributeValues()
+    {
+        var text = new UiText();
+        var layout = FakeLayout((CharacterController.MainTextId, text));
+
+        var sheet = SampleData.SampleCharacter();
+        CharacterController.Bind(layout, () => sheet);
+
+        var allText = string.Join("\n", text.LinesProvider().Select(l => l.Text));
+
+        // All six attribute values should appear as strings in the report.
+        Assert.Contains(sheet.Strength.ToString(),     allText);
+        Assert.Contains(sheet.Endurance.ToString(),    allText);
+        Assert.Contains(sheet.Quickness.ToString(),    allText);
+        Assert.Contains(sheet.Coordination.ToString(), allText);
+        Assert.Contains(sheet.Focus.ToString(),        allText);
+        Assert.Contains(sheet.Self.ToString(),         allText);
+    }
+
+    // ── Helpers ───────────────────────────────────────────────────────────────
+
+    private static ImportedLayout FakeLayout(params (uint id, UiElement e)[] items)
+    {
+        var dict = new Dictionary<uint, UiElement>();
+        var root = new UiPanel();
+        foreach (var (id, e) in items)
+        {
+            root.AddChild(e);
+            dict[id] = e;
+        }
+        return new ImportedLayout(root, dict);
+    }
+}