修复回忆录图片重试状态透传与前端展示

api/tests/test_generate_chapter_images_task.py

@@ -305,6 +305,75 @@ class GenerateChapterImagesTaskTest(unittest.TestCase):
         self.assertTrue(upload_args[0].startswith(b"\x89PNG\r\n\x1a\n"))
         self.assertEqual(upload_args[2], "image/png")
 
+    @patch("api.tasks.memoir_tasks.SessionLocal")
+    @patch("api.tasks.memoir_tasks.TencentCosStorageService")
+    @patch("api.tasks.memoir_tasks.LiblibImageProvider")
+    @patch("api.tasks.memoir_tasks.MemoirImagePromptService")
+    @patch("api.tasks.memoir_tasks._release_chapter_image_lock")
+    @patch("api.tasks.memoir_tasks._acquire_chapter_image_lock", return_value=True)
+    def test_generate_chapter_images_fails_without_retry_on_permanent_cos_error(
+        self,
+        _acquire_lock_mock,
+        _release_lock_mock,
+        prompt_service_cls,
+        provider_cls,
+        storage_cls,
+        session_local_cls,
+    ):
+        chapter = type(
+            "ChapterStub",
+            (),
+            {
+                "id": "chapter-1",
+                "user_id": "user-1",
+                "title": "童年的夏天",
+                "category": "childhood",
+                "content": "那条路我一直记得。\n\n{{{{IMAGE:南方小镇的青石板路}}}}",
+                "images": [
+                    {
+                        "index": 0,
+                        "placeholder": "{{{{IMAGE:南方小镇的青石板路}}}}",
+                        "description": "南方小镇的青石板路",
+                        "status": "pending",
+                        "url": None,
+                    }
+                ],
+            },
+        )()
+
+        image_buffer = BytesIO()
+        Image.new("RGB", (1, 1), color="white").save(image_buffer, format="PNG")
+        png_bytes = image_buffer.getvalue()
+
+        db = Mock()
+        db.get.return_value = chapter
+        session_local_cls.return_value = db
+        prompt_service_cls.return_value.build_prompt.return_value = {
+            "prompt": "A serene southern China town",
+            "style": "watercolor",
+            "size": "1024x1024",
+            "prompt_context": "childhood: 童年的夏天",
+        }
+        provider_inst = provider_cls.return_value
+        provider_inst.submit_generation.return_value = {
+            "status": "completed",
+            "image_url": "https://provider.example.com/1.png",
+        }
+        provider_inst.download_image.return_value = png_bytes
+        storage_inst = storage_cls.from_env.return_value
+        storage_inst.upload_bytes.side_effect = memoir_tasks.CosUploadError(
+            "AccessDenied", retryable=False, request_id="req-403"
+        )
+        task_self = SimpleNamespace(request=SimpleNamespace(id="task-1"), retry=Mock())
+
+        with self.assertRaises(memoir_tasks.PermanentImageGenerationError) as ctx:
+            generate_chapter_images.run.__func__(task_self, "chapter-1")
+
+        self.assertIn("AccessDenied", str(ctx.exception))
+        self.assertEqual(chapter.images[0]["status"], "failed")
+        self.assertIn("AccessDenied", chapter.images[0]["error"])
+        task_self.retry.assert_not_called()
+
     @patch("api.tasks.memoir_tasks.SessionLocal")
     @patch("api.tasks.memoir_tasks.TencentCosStorageService")
     @patch("api.tasks.memoir_tasks.LiblibImageProvider")