新增后台Dashboard并修正画板规范图选择

新增后台 Dashboard 默认入口、日周月筛选和运营汇总页签

补充后台 Dashboard 数据契约、接口统计和文档

修正画板角色与图标规范图选择、缓存和提示状态

修复创作页桌面导航类型收窄错误

更新 Codex 环境初始化脚本和相关回归测试记录

src/components/image-editor/ImageCanvasGenerationDialogModel.ts

@@ -108,7 +108,7 @@ function getReferenceMediaType(layer: CanvasLayer) {
     : 'image';
 }
 
-function isIconSpecReferenceLayer(layer: CanvasLayer) {
+export function isIconSpecReferenceLayer(layer: CanvasLayer) {
   if (layer.assetKind === 'icon-spec') {
     return true;
   }
@@ -126,6 +126,13 @@ function isIconSpecReferenceLayer(layer: CanvasLayer) {
   );
 }
 
+export function isCharacterSpecReferenceLayer(layer: CanvasLayer) {
+  if (getReferenceMediaType(layer) !== 'image' || layer.assetKind !== 'spec') {
+    return false;
+  }
+  return !isIconSpecReferenceLayer(layer);
+}
+
 function appendLimitedSeedanceCanvasReference(
   references: NonNullable<GenerateDialogState['generationReferences']>,
   layer: CanvasLayer,
@@ -731,7 +738,7 @@ export function assignCharacterSpecReference(
   dialog: GenerateDialogState | null,
   layer: CanvasLayer,
 ): GenerateDialogState | null {
-  return dialog?.mode === 'character' && getReferenceMediaType(layer) === 'image'
+  return dialog?.mode === 'character' && isCharacterSpecReferenceLayer(layer)
     ? {
         ...resetFailedGenerationDialog(dialog),
         characterSpecReference: createCanvasLayerReference(layer),