feat(studio): Attributes tab Pass 2 — click-to-select (highlight + footer B + raise triangles) + tab states

- UiClickablePanel: new UiPanel subclass with OnClick action + HandlesClick=true
  so row clicks survive whole-window-Draggable ancestor frames.

- CharacterStatController overhaul (Pass 2):
  - Tab bar button states: SetButtonStateRecursive walks each tab group container
    (0x10000228/229/538) setting UiButton.ActiveState="Open" (Attributes) or
    "Closed" (Skills/Titles) via UIStateId enum string names from DatReaderWriter.
  - Row click: 9 rows become UiClickablePanel; sel[] mutable box drives footer/highlight.
  - Toggle: clicking the same row deselects (→ footer State A); click a new row
    updates title="Attrib: value", line-1 label="Experience To Raise:", line-1
    value=cost, line-2="Unassigned Experience:" in both states.
  - Row highlight: BackgroundColor=HighlightBg (semi-translucent gold) on selected row.
  - Raise buttons (0x10000246 ×1 + 0x100005EB ×10): hidden initially; shown on
    selection with ActiveState="Normal" (affordable) or "Ghosted" (cost=0 or unaffordable).
    CollectButtonsById tree-walk finds ALL copies of the button across tab-page mounts
    (not just the last-registered _byId copy) so all instances are controlled.

- CharacterSheet: AttributeRaiseCosts long[] (Strength…Mana raise costs in retail
  display order; cost=0 → max/disabled row demos the Ghosted button state).
- SampleData.SampleCharacter: fills AttributeRaiseCosts[9] — Strength/Quickness=0
  (maxed), Focus@10→110 matching the retail screenshot (spec §4).

- 35 new tests (total 673 pass) covering: row click→footer B title/line1/line2,
  toggle deselect→footer A, switch row, highlight set/clear, raise button
  hidden/Normal/Ghosted/deselect, tab Open/Closed states, GetRaiseCost helper,
  GetRowName helper, SampleData fixture sanity.

Console.WriteLine("[CharacterStat] Row click: index=N → selected=N (Name)") fires
on every click for the user's live verification in the studio.

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

src/AcDream.App/Studio/SampleData.cs

@@ -160,6 +160,13 @@ public static class SampleData
         // Unassigned (banked) XP (retail InqInt64(2)); footer State-A line-2 value.
         UnassignedXp = 87_757_321_741L,
 
+        // Raise costs in retail display order (Strength, Endurance, Coordination, Quickness,
+        // Focus, Self, Health, Stamina, Mana).
+        // Str@200 = maxed → 0 (disabled). Quickness@200 = maxed → 0. Others @10 → affordable.
+        // Focus@10 → 110 matches the authoritative retail screenshot (spec §4).
+        // Formula bracket at value=10: ExperienceToAttributeLevel(11) − ExperienceToAttributeLevel(10).
+        AttributeRaiseCosts = new long[] { 0L, 95L, 100L, 0L, 110L, 105L, 90L, 88L, 112L },
+
         AugmentationName = "Swords",
 
         BurdenCurrent = 1200,