3D 提交收到无任务状态的成功响应不再静默复位

- 新增 MODEL3D_SUBMISSION_MISSING_QUEUE_STATE_MESSAGE 提示文案
- 空 body 或缺 status 的 2xx 响应改判失败态并保留提示，不再直接回 idle
- 补用例断言不再触发排队链路且对话框进入失败态

src/components/image-editor/model3d-generation/Model3dGenerationSubmission.ts

@@ -27,6 +27,8 @@ export const MODEL3D_GENERATION_FAILURE_MESSAGE =
   '生成 3D 模型失败，请稍后重试。';
 export const MODEL3D_GENERATION_TIMEOUT_MESSAGE =
   '3D 生成请求超时，请稍后重试。';
+export const MODEL3D_SUBMISSION_MISSING_QUEUE_STATE_MESSAGE =
+  '3D 生成任务已提交，但服务端没有返回任务状态，请稍后重试。';
 
 export type Model3dSubmissionPlan = {
   endpoint: Model3dPricingEndpoint;

src/components/image-editor/model3d-generation/useModel3dGenerationTask.test.tsx

@@ -22,6 +22,7 @@ import {
   createModel3dGenerationDraftFields,
   MODEL3D_PRICING_UNAVAILABLE_REASON,
 } from './Model3dGenerationFormModel';
+import { MODEL3D_SUBMISSION_MISSING_QUEUE_STATE_MESSAGE } from './Model3dGenerationSubmission';
 import { useModel3dGenerationTask } from './useModel3dGenerationTask';
 
 const submitModel3dGenerationRequestMock = vi.hoisted(() => vi.fn());
@@ -218,6 +219,26 @@ describe('useModel3dGenerationTask', () => {
     expect(result.current.dialog.composerOpen).toBe(true);
   });
 
+  it('2xx 但没有任务状态时给出失败提示，而不是静默复位', async () => {
+    // requestJson 在空 body 时返回 null，这里覆盖「成功但没有 status」的形态。
+    submitModel3dGenerationRequestMock.mockResolvedValue(null);
+    const applyQueuedGeneration = vi.fn(async () => true);
+    const { result } = renderTask({
+      dialog: createDialog(),
+      applyQueuedGeneration,
+    });
+
+    await act(async () => {
+      await result.current.submitModel3dGeneration(createDialog());
+    });
+
+    expect(applyQueuedGeneration).not.toHaveBeenCalled();
+    expect(result.current.dialog.status).toBe('failed');
+    expect(result.current.dialog.errorMessage).toBe(
+      MODEL3D_SUBMISSION_MISSING_QUEUE_STATE_MESSAGE,
+    );
+  });
+
   it('请求失败时留在面板上展示失败原因', async () => {
     submitModel3dGenerationRequestMock.mockRejectedValue(
       new Error('3D 模型生成失败，请稍后重试。'),

src/components/image-editor/model3d-generation/useModel3dGenerationTask.ts

@@ -14,6 +14,7 @@ import { readEditorModel3dPricingConfig } from '../ImageCanvasGenerationModel';
 import { isModel3dGenerationMode } from './Model3dGenerationFormModel';
 import {
   buildModel3dSubmissionPlan,
+  MODEL3D_SUBMISSION_MISSING_QUEUE_STATE_MESSAGE,
   model3dQueueStateFromResponse,
   resolveModel3dGenerationErrorMessage,
   resolveModel3dResultTitle,
@@ -106,9 +107,19 @@ export function useModel3dGenerationTask({
           idempotencyKey: planResult.plan.requestKey,
         });
         const queueState = model3dQueueStateFromResponse(response);
+        if (!queueState) {
+          // 2xx 但没有任务状态（空 body 或缺 status 的 payload）不能当成功静默复位：
+          // 用户既看不到任务也没有任何提示，服务端细节被丢掉。
+          updateCanvasGenerationDialogById(dialogId, (currentDialog) => ({
+            ...currentDialog,
+            status: 'failed',
+            composerOpen: true,
+            errorMessage: MODEL3D_SUBMISSION_MISSING_QUEUE_STATE_MESSAGE,
+          }));
+          return;
+        }
         if (
-          queueState &&
-          (await applyQueuedGeneration(
+          await applyQueuedGeneration(
             { queueState },
             projectId,
             applyProjectSnapshot,
@@ -116,7 +127,7 @@ export function useModel3dGenerationTask({
             onWalletBalanceMayHaveChanged,
             onGenerationWarning,
             dialogId,
-          ))
+          )
         ) {
           return;
         }