M6.7: Parchment theme pass

Lights up the M5 codex design system across the wizard. Default
palette swaps from dark leather to aged-parchment cream with
sealing-wax red selection emphasis, matching the React prototype's
default theme variant. CodexTheme.Build() is applied at the wizard
root so every step + Aside + popover cascades through it.

Theme additions:
- Parchment palette in CodexPalette (Dark retained as alt)
- Type variations registered for Card, CodexPopover, Pill,
  PillDetriment, AbilityToken, AbilitySlot, SkillRow — without
  SetTypeVariation, panel-stylebox lookup falls through to Godot's
  default dark slate, which is what was happening to every bare
  PanelContainer before this pass.
- panel_hover stylebox on Card (gild border) wired via CodexCard's
  MouseEntered/Exited helper; panel_selected bumped to 3px seal-red
  border + soft shadow so selection reads at a glance.

Card selection refactor:
- Replaced the warm-cream Modulate hint on cards with stylebox swaps
  via the new CodexCard.SetSelected helper. The Modulate approach
  was a no-op on cream-on-cream parchment; the stylebox swap looks
  the same on either palette.
- Step intros + Aside section headers now use the existing Eyebrow /
  H2 / H3 / CardName / CardMeta / CardBody label variations.
- Confirm button on Step VIII uses the PrimaryButton variation.

Popover + chip behaviour:
- PopoverLayer is now MouseFilter=Ignore so clicks/scroll/hover all
  pass through. Adjacent chips fire reliably even when the previous
  popover overlaps them spatially.
- Dropped the 80ms grace timer; chip MouseExited closes immediately.
- TraitChip MouseFilter Stop → Pass so clicks bubble up to the
  parent card's GuiInput (selecting the card).

Misc:
- Wizard._Ready inserts a backing Panel so the parchment Bg fills
  the canvas — Wizard root is a plain Control, which paints nothing.
- CodexTheme font lookup tries Cormorant-Medium before -Regular and
  globalizes res://Fonts/ for runtime FontFile load (the previous
  fallback used ContentPaths which points at a sibling data tree).
- StepStats final-score Label rendered at font_size 22 to match the
  AbilityToken die.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Theriapolis.Godot/Scenes/Steps/StepClass.cs

@@ -37,8 +37,8 @@ public partial class StepClass : VBoxContainer, IStep
         var intro = new VBoxContainer();
         intro.AddThemeConstantOverride("separation", 6);
         AddChild(intro);
-        intro.AddChild(new Label { Text = "FOLIO III · CALLING" });
-        intro.AddChild(new Label { Text = "Choose a Calling" });
+        intro.AddChild(new Label { Text = "FOLIO III · CALLING", ThemeTypeVariation = "Eyebrow" });
+        intro.AddChild(new Label { Text = "Choose a Calling",   ThemeTypeVariation = "H2" });
         intro.AddChild(new Label
         {
             Text = "Your character's path — fighter, hunter, scholar, or something stranger. "
@@ -67,12 +67,9 @@ public partial class StepClass : VBoxContainer, IStep
     {
         bool selected = _draft.ClassId == cls.Id;
 
-        var card = new PanelContainer
-        {
-            CustomMinimumSize = new Vector2(200, 0),
-            MouseFilter = MouseFilterEnum.Stop,
-        };
-        if (selected) card.Modulate = new Color(1f, 0.95f, 0.85f);
+        var card = CodexCard.Make();
+        card.CustomMinimumSize = new Vector2(200, 0);
+        CodexCard.SetSelected(card, selected);
 
         card.GuiInput += (InputEvent e) =>
         {
@@ -93,10 +90,11 @@ public partial class StepClass : VBoxContainer, IStep
         box.AddThemeConstantOverride("separation", 6);
         card.AddChild(box);
 
-        box.AddChild(new Label { Text = cls.Name });
+        box.AddChild(new Label { Text = cls.Name, ThemeTypeVariation = "CardName" });
         box.AddChild(new Label
         {
             Text = $"d{cls.HitDie}  ·  {string.Join("/", cls.PrimaryAbility)}",
+            ThemeTypeVariation = "CardMeta",
         });
 
         if (cls.Saves.Length > 0)
@@ -104,9 +102,9 @@ public partial class StepClass : VBoxContainer, IStep
             var savesRow = new HBoxContainer();
             savesRow.AddThemeConstantOverride("separation", 6);
             box.AddChild(savesRow);
-            savesRow.AddChild(new Label { Text = "SAVES" });
+            savesRow.AddChild(new Label { Text = "SAVES", ThemeTypeVariation = "Eyebrow" });
             foreach (var s in cls.Saves)
-                savesRow.AddChild(new Label { Text = s });
+                savesRow.AddChild(new Label { Text = s, ThemeTypeVariation = "CardMeta" });
         }
 
         // Level-1 features. Filter out stubs and subclass-selection markers