test(canvas): restore My Works fixture after project ID changes

tests/e2e/canvas-my-works-layout-harness.mjs

@@ -18,6 +18,8 @@ export async function createCanvasMyWorksServer({ port = 0 } = {}) {
           export const IMAGE_WORKSPACE_CREATE_PROJECT_EVENT = 'qa:image-workspace:create-project';
           export class ImageWorkspaceApiError extends Error {}
           export const createImageWorkspaceOperationId = () => 'qa-operation';
+          let projectSequence = 0;
+          export const createImageWorkspaceProjectId = () => 'qa-workspace-created-' + ++projectSequence;
           export const fetchImageWorkspace = async () => structuredClone(fixtureBootstrap);
           export const fetchImageWorkspaceProject = async id => {
             const workspace = fixtureWorkspaces.find(workspace => workspace.workspace.workspaceId === id);

tests/e2e/canvas-my-works-layout.spec.ts

@@ -22,6 +22,7 @@ for (const viewport of [{ width: 1600, height: 1000 }, { width: 1440, height: 96
     });
     await page.setViewportSize(viewport);
     await page.goto(baseUrl);
+    expect(pageErrors, 'Canvas fixture must initialize without module or browser errors').toEqual([]);
     const split = page.getByTestId('canvas-workspace-split');
     await expect(split).toBeVisible();
     if (viewport.width >= 1024) await page.getByRole('button', { name: '展开创作对话', exact: true }).click();