feat(product-suite): add grouped generation history

tests/test_image_studio.py

@@ -981,6 +981,42 @@ class ImageStudioTests(TempDirMixin, unittest.TestCase):
                 [failed_round, round_one, None],
                 [round_.generation_round_key for round_ in rounds],
             )
+            self.assertEqual(
+                [failed_round],
+                [
+                    round_.generation_round_key
+                    for round_ in image_studio.list_generation_rounds(
+                        project.id,
+                        limit=1,
+                        offset=0,
+                        path=db_path,
+                    )
+                ],
+            )
+            self.assertEqual(
+                [round_one],
+                [
+                    round_.generation_round_key
+                    for round_ in image_studio.list_generation_rounds(
+                        project.id,
+                        limit=1,
+                        offset=1,
+                        path=db_path,
+                    )
+                ],
+            )
+            self.assertEqual(
+                [None],
+                [
+                    round_.generation_round_key
+                    for round_ in image_studio.list_generation_rounds(
+                        project.id,
+                        limit=1,
+                        offset=2,
+                        path=db_path,
+                    )
+                ],
+            )
             summary = rounds[1]
             self.assertTrue(summary.is_current)
             self.assertEqual(3, summary.job_count)