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/ImageCanvasGenerationLayerModel.test.ts

@@ -373,6 +373,36 @@ describe('ImageCanvasGenerationLayerModel', () => {
     });
   });
 
+  it('keeps the spritesheet layer when icon results are missing', () => {
+    const layers = createIconSpritesheetResultLayers({
+      generated: {
+        spritesheetImageSrc: 'data:image/png;base64,sheet',
+        spritesheetWidth: 512,
+        spritesheetHeight: 512,
+        iconImageSrcs: [],
+        prompt: '图标 prompt',
+        actualPrompt: '图标 actual prompt',
+        model: 'gpt-image-2',
+        provider: 'VectorEngine',
+        taskId: 'task-icons',
+        priceMudPoints: 20,
+      },
+      iconResults: undefined,
+      startIndex: 11,
+      canvasSize: { width: 900, height: 640 },
+      viewport: { x: 0, y: 0, scale: 1 },
+      generationInputs: createGenerationInputs(),
+    });
+
+    expect(layers).toHaveLength(1);
+    expect(layers[0]).toMatchObject({
+      id: 'layer-icon-spritesheet-11',
+      title: '图标素材图集 11',
+      assetKind: 'icon-spritesheet',
+      src: 'data:image/png;base64,sheet',
+    });
+  });
+
   it('creates audio result layers centered on the active placeholder', () => {
     const layer = createAudioResultLayer({
       generated: {