[chore] Regenerate data models after OpenAPI fixes

- Updated generated_models.py to reflect OpenAPI 3.1 nullable format changes
- Models now use Optional[type] instead of nullable: true
- All affected models regenerated with datamodel-codegen
- Syntax and linting checks pass

Author: christian-byrne

comfyui_manager/data_models/generated_models.py

@@ -1,6 +1,6 @@
 # generated by datamodel-codegen:
 #   filename:  openapi.yaml
-#   timestamp: 2025-06-13T18:46:51+00:00
+#   timestamp: 2025-06-14T01:44:21+00:00
 
 from __future__ import annotations
 
@@ -99,7 +99,7 @@ class ManagerPackInstallType(str, Enum):
     cnr = 'cnr'
 
 
-class UpdateState(str, Enum):
+class UpdateState(Enum):
     false = 'false'
     true = 'true'
 
@@ -206,14 +206,16 @@ class QueueStatus(BaseModel):
     )
 
 
-class ManagerMapping(BaseModel):
+class ManagerMappings1(BaseModel):
     title_aux: Optional[str] = Field(None, description='The display name of the pack')
 
 
 class ManagerMappings(
-    RootModel[Optional[Dict[str, List[Union[List[str], ManagerMapping]]]]]
+    RootModel[Optional[Dict[str, List[Union[List[str], ManagerMappings1]]]]]
 ):
-    root: Optional[Dict[str, List[Union[List[str], ManagerMapping]]]] = None
+    root: Optional[Dict[str, List[Union[List[str], ManagerMappings1]]]] = Field(
+        None, description='Tuple of [node_names, metadata]'
+    )
 
 
 class ModelMetadata(BaseModel):