feat(cli): inline field docs in generated resources-server config (M6a)

nemo_gym/cli/env.py

@@ -745,7 +745,7 @@ def init_resources_server():  # pragma: no cover
         jsonl_fpath: resources_servers/{server_type_name}/data/train.jsonl   # local data file for this split
         num_repeats: 1                          # times to repeat each example (e.g. for pass@k / mean@k)
         license: Apache 2.0                     # required for train/validation; must be an allowed license string
-        # to fetch this split from a registry instead, add gitlab_identifier: or huggingface_identifier:
+        # to fetch this split from a registry instead, add a source: block (type: gitlab | huggingface)
       - name: validation
         type: validation
         jsonl_fpath: resources_servers/{server_type_name}/data/validation.jsonl

tests/unit_tests/test_cli.py

@@ -169,6 +169,12 @@ def test_init_resources_server_includes_domain(self) -> None:
                 # This should not raise an assertion error about missing domain
                 instance_config = ResourcesServerInstanceConfig.model_validate(full_config_dict)
                 assert instance_config is not None
+
+                # The generated config points users at the unified `source:` identifier, not the
+                # deprecated gitlab_identifier/huggingface_identifier.
+                assert "source:" in config_text
+                assert "gitlab_identifier" not in config_text
+                assert "huggingface_identifier" not in config_text
         finally:
             # Clean up the test server directory
             if server_path.exists():