Add HTML5 rollback apply summary

services/api-server/src/api_server/html5.py

@@ -1019,6 +1019,7 @@ def render_html5_authoring_rollback_result(project_id: str, result: object | Non
         <span>{escape(rollback_change_id)}</span>
         <small>{escape(version_id)}</small>
       </article>
+      {_authoring_apply_summary("rollback", status, rollback_change_id or change_id, version_id)}
       <p class="muted padded">Rollback применен в workspace для проекта {escape(project_id)}.</p>
     </div>
     """

services/api-server/tests/test_api.py

@@ -2748,6 +2748,25 @@ def test_authoring_context_and_completion_preview(tmp_path: Path):
     assert rollback_apply_payload["version"]["payload"]["kind"] == "AUTHORING_ROLLBACK"
     assert rollback_apply_payload["rollback_change_id"].startswith("rollback.")
 
+    html5_rollback_apply = client.post(
+        f"/html5/projects/{project_id}/authoring/changes/{apply_payload['change_id']}/apply-rollback",
+        data={
+            "expected_rollback_version_id": rollback_payload["rollback_version_id"],
+            "approved_by": "dev.ivan",
+            "approval_note": "rollback html5 checked",
+            "task_id": "task.rollback",
+            "session_id": "session.rollback",
+        },
+    )
+    assert html5_rollback_apply.status_code == 200
+    assert "text/html" in html5_rollback_apply.headers["content-type"]
+    assert "data-html5-authoring-result" in html5_rollback_apply.text
+    assert "data-html5-authoring-apply-summary" in html5_rollback_apply.text
+    assert 'data-html5-authoring-apply-kind="rollback"' in html5_rollback_apply.text
+    assert "ROLLED_BACK_TO_WORKSPACE" in html5_rollback_apply.text
+    assert rollback_apply_payload["rollback_change_id"] in html5_rollback_apply.text
+    assert "<html" not in html5_rollback_apply.text
+
     version_diff = client.get(
         f"/versions/{apply_payload['version']['lineage_id']}/diff",
         params={