feat(datasources): govern approvals and retention

tests/test_interface_documentation_contract.py

@@ -18,6 +18,8 @@ class DatasourcesInterfaceDocumentationContractTests(unittest.TestCase):
                 "datasources.origins",
                 "datasources.governance",
                 "datasources.preview",
+                "datasources.lifecycle-evidence",
+                "datasources.retention",
             },
             {item.id for item in frontend.view_surfaces},  # type: ignore[union-attr]
         )
@@ -29,6 +31,7 @@ class DatasourcesInterfaceDocumentationContractTests(unittest.TestCase):
         quality = topics["datasources.quality-gates"]
         visibility = topics["datasources.visibility"]
         reference = topics["datasources.reference.fields-and-consequences"]
+        lifecycle_controls = topics["datasources.approval-and-retention"]
 
         self.assertIn("datasources.staging", lifecycle.metadata["help_contexts"])
         self.assertIn("datasources.field.authority-mode", governance.metadata["help_contexts"])
@@ -43,6 +46,9 @@ class DatasourcesInterfaceDocumentationContractTests(unittest.TestCase):
         self.assertIn("datasources.action.promote", reference.metadata["help_contexts"])
         self.assertIn("freeze", reference.metadata["consequence_classes"])
         self.assertIn("retire", reference.metadata["consequence_classes"])
+        self.assertIn("datasources.action.approve", lifecycle_controls.metadata["help_contexts"])
+        self.assertIn("hash-chained lifecycle evidence", lifecycle_controls.body)
+        self.assertTrue(lifecycle_controls.translations["de"]["body"])
 
 
 if __name__ == "__main__":