feat: use image concurrency for outfit directories

tests/test_ai_outfit_panel.py

@@ -64,6 +64,15 @@ class TestAiOutfitPanelDefaults(unittest.TestCase):
 
         self.assertEqual(Path(panel._output_edit.text()), saved)
 
+    def test_generation_setting_label_is_image_concurrency(self):
+        from PySide6.QtWidgets import QLabel
+
+        panel = self._panel()
+
+        labels = [label.text() for label in panel.findChildren(QLabel)]
+
+        self.assertIn("图片并发数", labels)
+
 
 if __name__ == "__main__":
     unittest.main()