完善快速编辑参考图与生成占位

- 快速编辑支持最多8张额外参考图，并将原图自动作为最后一张参考图提交

- 快速编辑尺寸和模型沿用原图配置，按禁用态参数胶囊展示

- 快速编辑提交前同步改写原图引用为实际图序号

- 快速编辑生成改为创建独立画布生成占位，并支持键盘删除生成中对象

- 对齐生成类面板参考图图标、规范类固定参数和相关文档测试

src/components/image-editor/ImageCanvasGenerationSubmissionModel.test.ts

@@ -125,7 +125,7 @@ describe('ImageCanvasGenerationSubmissionModel', () => {
       },
       result: {
         assetKind: 'icon-spec',
-        title: '图标素材规范 8',
+        title: '图标规范 8',
       },
     });
     expect(plan.kind === 'image' ? plan.result.generationInputs : null).toEqual({
@@ -143,6 +143,34 @@ describe('ImageCanvasGenerationSubmissionModel', () => {
     });
   });
 
+  it('treats the renamed UI spec entry as an icon spec asset', () => {
+    const plan = buildImageGenerationSubmissionPlan({
+      dialog: {
+        mode: 'spec',
+        prompt: '',
+        status: 'idle',
+        specType: 'ui',
+        specValues: {
+          playSetting: '消除类派对玩法',
+          artStyle: '糖果玻璃拟物',
+          bodyRatio: '3',
+          characterView: '',
+          customPrompt: '',
+        },
+      },
+      layers: [],
+      nextGeneratedIndex: 2,
+    });
+
+    expect(plan).toMatchObject({
+      kind: 'image',
+      result: {
+        assetKind: 'icon-spec',
+        title: '图标规范 2',
+      },
+    });
+  });
+
   it('builds character plans with references and remembered model', () => {
     const plan = buildImageGenerationSubmissionPlan({
       dialog: {
@@ -193,7 +221,7 @@ describe('ImageCanvasGenerationSubmissionModel', () => {
       fields: [{ title: '角色设定', value: '白发骑士' }],
       references: [
         {
-          title: '角色形象规范',
+          title: '角色规范',
           label: '角色规范',
           src: 'data:image/png;base64,spec',
         },
@@ -231,7 +259,7 @@ describe('ImageCanvasGenerationSubmissionModel', () => {
 
     expect(plan).toEqual({
       ok: false,
-      errorMessage: '请选择图标素材规范',
+      errorMessage: '请选择图标规范',
     });
   });
 
@@ -285,7 +313,7 @@ describe('ImageCanvasGenerationSubmissionModel', () => {
         fields: [{ title: '素材描述', value: '返回按钮\n设置按钮' }],
         references: [
           {
-            title: '图标素材规范',
+            title: '图标规范',
             label: '图标规范',
             src: 'data:image/png;base64,spec',
           },