pulled in subtrees and resolved conflicts w/ burnettk

spiffworkflow-backend/src/spiffworkflow_backend/models/process_group.py

@@ -26,7 +26,9 @@ class ProcessGroup:
     process_models: list[ProcessModelInfo] = field(
         default_factory=list[ProcessModelInfo]
     )
-    process_groups: list[ProcessGroup] = field(default_factory=list["ProcessGroup"])
+    process_groups: list[ProcessGroup] = field(
+        default_factory=list['ProcessGroup']
+    )
 
     def __post_init__(self) -> None:
         """__post_init__."""

spiffworkflow-backend/src/spiffworkflow_backend/services/process_model_service.py

@@ -303,7 +303,9 @@ class ProcessModelService(FileSystemService):
                     if self.is_group(nested_item.path):
                         # This is a nested group
                         process_group.process_groups.append(
-                            self.__scan_process_group(nested_item.path)
+                            self.__scan_process_group(
+                                nested_item.path
+                            )
                         )
                     elif self.is_model(nested_item.path):
                         process_group.process_models.append(