完成完美像素前端未知结果收口

改为 object-only 源图上传并贯穿取消信号
以项目 GET 正向证据判定画布成功与 asset-only
持久化并原样重放 operation 请求，阻止未收口身份被删除
统一 75 秒绝对窗口并兼容旧 240 秒 journal
补齐时钟偏差、删除保护与 byte-for-byte 回归测试
同步更新图片画布契约与共享决策记录

src/services/image-editor/editorMediaAssetUploadClient.test.ts

@@ -35,7 +35,7 @@ describe('editorMediaAssetUploadClient', () => {
     vi.unstubAllGlobals();
   });
 
-  it('uploads editor MP4 assets through direct OSS upload and confirms object metadata', async () => {
+  it('uploads editor MP4 assets and forwards one abort signal through signed-url resolution', async () => {
     requestJsonMock
       .mockResolvedValueOnce({
         upload: {
@@ -63,16 +63,19 @@ describe('editorMediaAssetUploadClient', () => {
     getSignedAssetReadUrlMock.mockResolvedValueOnce(
       'https://signed.example.com/demo.mp4',
     );
+    const abortController = new AbortController();
 
     const result = await uploadEditorMediaAssetFile(
       new File(['video'], 'demo.mp4', { type: 'video/mp4' }),
       'video',
+      { signal: abortController.signal },
     );
 
     expect(requestJsonMock).toHaveBeenNthCalledWith(
       1,
       '/api/assets/direct-upload-tickets',
       expect.objectContaining({
+        signal: abortController.signal,
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: expect.any(String),
@@ -99,6 +102,7 @@ describe('editorMediaAssetUploadClient', () => {
     expect(fetch).toHaveBeenCalledWith(
       'https://oss.example.com',
       expect.objectContaining({
+        signal: abortController.signal,
         method: 'POST',
         body: expect.any(FormData),
       }),
@@ -110,6 +114,7 @@ describe('editorMediaAssetUploadClient', () => {
       2,
       '/api/assets/objects/confirm',
       expect.objectContaining({
+        signal: abortController.signal,
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: expect.any(String),
@@ -119,7 +124,8 @@ describe('editorMediaAssetUploadClient', () => {
     );
     expect(confirmBody).toMatchObject({
       bucket: 'bucket',
-      objectKey: 'generated-character-drafts/editor/asset-library/video/demo.mp4',
+      objectKey:
+        'generated-character-drafts/editor/asset-library/video/demo.mp4',
       contentType: 'video/mp4',
       contentLength: 5,
       assetKind: 'editor_uploaded_video',
@@ -132,7 +138,7 @@ describe('editorMediaAssetUploadClient', () => {
           'generated-character-drafts/editor/asset-library/video/demo.mp4',
         expireSeconds: 3600,
       },
-      undefined,
+      abortController.signal,
       { bypassCache: true },
     );
     expect(result).toEqual({
@@ -194,7 +200,8 @@ describe('editorMediaAssetUploadClient', () => {
       (requestJsonMock.mock.calls[1]?.[1] as RequestInit).body as string,
     );
     expect(confirmBody).toMatchObject({
-      objectKey: 'generated-character-drafts/editor/asset-library/image/spec.png',
+      objectKey:
+        'generated-character-drafts/editor/asset-library/image/spec.png',
       contentType: 'image/png',
       contentLength: 5,
       assetKind: 'editor_uploaded_image',
@@ -260,12 +267,7 @@ describe('editorMediaAssetUploadClient', () => {
       (requestJsonMock.mock.calls[0]?.[1] as RequestInit).body as string,
     );
     expect(ticketBody).toMatchObject({
-      pathSegments: [
-        'editor',
-        'project-covers',
-        'project-1',
-        '1771400000000',
-      ],
+      pathSegments: ['editor', 'project-covers', 'project-1', '1771400000000'],
       fileName: 'project-1-cover.png',
       metadata: {
         asset_kind: 'editor_project_cover_snapshot',

src/services/image-editor/editorMediaAssetUploadClient.ts

@@ -166,7 +166,7 @@ export async function uploadEditorMediaAssetFile(
       objectKey: uploaded.objectKey,
       expireSeconds: EDITOR_MEDIA_READ_EXPIRE_SECONDS,
     },
-    undefined,
+    options.signal,
     { bypassCache: true },
   );
   return {