调整字体素材槽统计语义

仅将 Bound 字体计入素材槽并视为已绑定

SystemFont 不再计入素材槽、待绑定或组件素材需求

同步 binding overview 回归测试

apps/ai-game-creator-shell/src/features/ui-editor/bindingOverview.ts

@@ -46,7 +46,13 @@ export function getImageBindingCounts(
 export function getTextBindingCounts(
   component: Extract<Component, { Text: unknown }>['Text'],
 ): ComponentBindingCounts {
-  void component;
+  if (
+    typeof component.font !== 'object' ||
+    component.font === null ||
+    !('Bound' in component.font)
+  ) {
+    return EMPTY_COMPONENT_BINDING_COUNTS;
+  }
   return countRequiredAssetSlot(true);
 }
 

apps/ai-game-creator-shell/tests/bindingOverview.test.ts

@@ -105,9 +105,9 @@ const trees: UITree[] = [
 describe('getBindingOverview', () => {
   it('uses per-component helpers to include both image and text slots', () => {
     expect(getBindingOverview(trees, sprites)).toEqual({
-      componentsNeedingAssets: 4,
-      assetSlots: 4,
-      boundSlots: 3,
+      componentsNeedingAssets: 3,
+      assetSlots: 3,
+      boundSlots: 2,
       pendingSlots: 1,
       needsAttention: 2,
       blocked: 1,