Abri amend_job omits the surveyor resource so amendments cannot clobber Abri-side reassignments 🟥

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/infrastructure/abri/test_abri_client.py

@@ -252,3 +252,23 @@ def test_amend_job_sends_the_recorded_amendoptiappt_envelope_to_the_relay_endpoi
     assert ET.canonicalize(xml_data=sent_body, strip_text=True) == ET.canonicalize(
         xml_data=expected_body, strip_text=True
     )
+
+
+def test_amend_job_omits_the_resource_parameter_when_no_surveyor_is_provided(
+    client: AbriClient, mock_session: MagicMock
+) -> None:
+    # Arrange
+    mock_session.post.return_value.content = _load_fixture(
+        "abri_relay_amendoptiappt_success_response.xml"
+    )
+
+    # Act
+    client.amend_job(_spec_example_amend_request())
+
+    # Assert
+    sent_body: bytes = mock_session.post.call_args.kwargs["data"]
+    sent_attributes = [
+        parameter.get("attribute")
+        for parameter in ET.fromstring(sent_body).findall(".//Parameters")
+    ]
+    assert "resource" not in sent_attributes