Fix mypy type errors in run_request.py

- Use isinstance checks for proper type narrowing instead of attribute access
- Use distinct variable names (hdca_input, hda_input) to avoid type conflicts
- Add necessary type imports from tool_util_models.parameters

https://claude.ai/code/session_01QWGeMjFzqh1JECMNdUo6mQ

Author: claude

lib/galaxy/workflow/run_request.py

@@ -29,7 +29,12 @@
     WorkflowRequestStepState,
 )
 from galaxy.model.base import ensure_object_added_to_session
-from galaxy.tool_util_models.parameters import DataOrCollectionRequestAdapter
+from galaxy.tool_util_models.parameters import (
+    DataOrCollectionRequestAdapter,
+    DataRequestCollectionUri,
+    DataRequestUri,
+    FileRequestUri,
+)
 from galaxy.tools.parameters.basic import ParameterValueError
 from galaxy.tools.parameters.meta import expand_workflow_inputs
 from galaxy.tools.parameters.workflow_utils import NO_REPLACEMENT
@@ -422,20 +427,20 @@ def build_workflow_run_configs(
                     content = app.dataset_collection_manager.get_dataset_collection_instance(
                         trans, "history", data_request.id
                     )
-                elif data_request.class_ == "Collection":
-                    request_input = dereference_input_to_hdca(trans, data_request, history)
+                elif isinstance(data_request, DataRequestCollectionUri):
+                    hdca_input = dereference_input_to_hdca(trans, data_request, history)
                     added_to_history = True
                     content = InputWithRequest(
-                        input=request_input,
+                        input=hdca_input,
                         request=data_request.model_dump(mode="json"),
                     )
                     if not data_request.deferred:
                         requires_materialization = True
-                elif data_request.src == "url" or data_request.class_ == "File":
-                    request_input = dereference_input_to_hda(trans, data_request, history)
+                elif isinstance(data_request, (DataRequestUri, FileRequestUri)):
+                    hda_input = dereference_input_to_hda(trans, data_request, history)
                     added_to_history = True
                     content = InputWithRequest(
-                        input=request_input,
+                        input=hda_input,
                         request=data_request.model_dump(mode="json"),
                     )
                     if not data_request.deferred: