Image editor: Seedance2.0 refs and audio changes

Adds Seedance 2.0 reference-media constraints and forbids video data URLs; updates docs/decision-log and pitfalls to record the new rules. Introduces typed audio params (type: one-shot|loop, tempo: number|null), generator-specific placeholder styles/avoidance and UI changes for generation panels. Implements related front-end changes (new crop/ raster edit components, many image-editor models, tests and workflow hooks) and server-side contract/handler updates across api-server, shared-contracts, platform-audio, platform-image and vector_engine_audio_generation to support the new submission/asset flow and validations.

src/components/image-editor/ImageCanvasEditorShellView.test.tsx

@@ -4,14 +4,12 @@ import { fireEvent, render, screen } from '@testing-library/react';
 import { createRef } from 'react';
 import { describe, expect, it, vi } from 'vitest';
 
-import type {
-  ImageCanvasMetadataModalViewProps,
-} from './ImageCanvasMetadataModalView';
+import { ImageCanvasEditorShellView } from './ImageCanvasEditorShellView';
+import type { CanvasLayer } from './ImageCanvasEditorTypes';
+import type { ImageCanvasMetadataModalViewProps } from './ImageCanvasMetadataModalView';
 import type { ImageCanvasSidebarViewProps } from './ImageCanvasSidebarView';
 import type { ImageCanvasStageViewProps } from './ImageCanvasStageView';
 import type { ImageCanvasTopbarViewProps } from './ImageCanvasTopbarView';
-import type { CanvasLayer } from './ImageCanvasEditorTypes';
-import { ImageCanvasEditorShellView } from './ImageCanvasEditorShellView';
 
 function createLayer(overrides: Partial<CanvasLayer> = {}): CanvasLayer {
   return {
@@ -161,10 +159,12 @@ function createStageProps(): ImageCanvasStageViewProps {
     onOpenLayerMetadata: vi.fn(),
     onGenerationFramePointerDown: vi.fn(),
     onActivateGenerationDialog: vi.fn(),
-    onDeleteSelectedLayer: vi.fn(),
     onOpenQuickEditPanel: vi.fn(),
-    onOpenEditDialog: vi.fn(),
+    onOpenRedrawPanel: vi.fn(),
+    onOpenCropExpandPanel: vi.fn(),
+    onRemoveBackground: vi.fn(),
     onOpenCharacterAnimationPanel: vi.fn(),
+    onDownloadLayer: vi.fn(),
     onPasteCanvasClipboard: vi.fn(),
     onCopyContextLayers: vi.fn(),
     onDuplicateContextLayers: vi.fn(),
@@ -222,15 +222,15 @@ describe('ImageCanvasEditorShellView', () => {
       />,
     );
 
-    expect(
-      screen.getByRole('region', { name: '图片画布编辑器' }),
-    ).toBeTruthy();
+    expect(screen.getByRole('region', { name: '图片画布编辑器' })).toBeTruthy();
     expect(screen.getByRole('heading', { name: '默认项目' })).toBeTruthy();
     expect(screen.getByLabelText('画布工作区')).toBeTruthy();
     expect(screen.getByRole('toolbar', { name: 'AI画布工具栏' })).toBeTruthy();
     expect(screen.getByRole('dialog', { name: '图片信息' })).toBeTruthy();
 
-    const uploadInput = screen.getByLabelText('上传图片文件') as HTMLInputElement;
+    const uploadInput = screen.getByLabelText(
+      '上传图片文件',
+    ) as HTMLInputElement;
     fireEvent.change(uploadInput);
 
     expect(uploadInput.multiple).toBe(true);