chore: improve image worker logging

apps/api/tests.py

@@ -1,5 +1,6 @@
 import uuid
 import base64
+import io
 import json
 import tempfile
 from datetime import timedelta
@@ -13,6 +14,7 @@ from django.conf import settings
 from django.contrib import admin
 from django.contrib.auth import get_user_model
 from django.core.cache import cache
+from django.core.management import call_command
 from django.test import TestCase, override_settings
 from django.urls import path
 from django.utils import timezone
@@ -1585,6 +1587,34 @@ class GenerateApiTests(TestCase):
         self.assertEqual(poll.data["status"], ImageGenerationTask.Status.FAILED)
         self.assertEqual(poll.data["error"]["code"], "upstream_timeout")
 
+    def test_run_image_tasks_logs_failed_task_alias_error_and_duration(self):
+        self.provider.image_error = requests.Timeout("image upstream deadline exceeded")
+        response = self.post_with_provider(
+            "/api/v1/generate/image/tasks",
+            {"prompt": "生成图片", "model": self.image_alias, "resolution": "1K"},
+        )
+        out = io.StringIO()
+
+        with patch("apps.api.generation.get_provider", return_value=self.provider):
+            call_command(
+                "run_image_tasks",
+                "--once",
+                "--worker-id",
+                "worker-log",
+                stdout=out,
+            )
+
+        task = ImageGenerationTask.objects.get(task_id=response.data["task_id"])
+        output = out.getvalue()
+        self.assertEqual(task.status, ImageGenerationTask.Status.FAILED)
+        self.assertIn("event=image_task_processed", output)
+        self.assertIn(f"task_id={task.task_id}", output)
+        self.assertIn(f"alias={self.image_alias}", output)
+        self.assertIn("status=failed", output)
+        self.assertIn("error_code=upstream_timeout", output)
+        self.assertRegex(output, r"duration_ms=\d+")
+        self.assertNotIn("生成图片", output)
+
     def test_async_image_reaper_fails_stale_running_task_and_refunds(self):
         response = self.post_with_provider(
             "/api/v1/generate/image/tasks",