合并图标规范与图集生成优化

合入 PR 137 的图标规范生成、稳定引用与图集提示词链路
保留主分支现行音效提交、Prompt 模块与结果压缩逻辑
解决 External Worker、生成提交和客户端测试冲突

src/components/image-editor/ImageCanvasEditorModel.ts

@@ -1257,9 +1257,7 @@ export function hydrateCanvasGenerationDialog(
       typeof snapshot.composerOpen === 'boolean' ? snapshot.composerOpen : true,
     sourceLayerId: stringOrUndefined(snapshot.sourceLayerId),
     generatedLayerId: stringOrUndefined(snapshot.generatedLayerId),
-    specType: isSpecGenerationType(snapshot.specType)
-      ? snapshot.specType
-      : undefined,
+    specType: normalizeSpecGenerationType(snapshot.specType),
     specValues: hydrateSpecFormValues(snapshot.specValues),
     specReference: hydrateCharacterReference(
       snapshot.specReference,
@@ -2380,12 +2378,16 @@ function isGenerationStatus(
 function isSpecGenerationType(
   value: unknown,
 ): value is NonNullable<CanvasGenerationDialogState['specType']> {
-  return (
-    value === 'character' ||
-    value === 'ui' ||
-    value === 'icon' ||
-    value === 'custom'
-  );
+  return value === 'character' || value === 'icon' || value === 'custom';
+}
+
+function normalizeSpecGenerationType(
+  value: unknown,
+): CanvasGenerationDialogState['specType'] {
+  if (value === 'ui') {
+    return 'icon';
+  }
+  return isSpecGenerationType(value) ? value : undefined;
 }
 
 function hydratePublicationWorkflowId(