Fix unwarranted workflow validation warning

src/schemas/comfyWorkflowSchema.ts

@@ -354,7 +354,8 @@ export const zComfyWorkflow1 = zBaseExportableGraph
     reroutes: z.array(zReroute).optional(),
     extra: zExtra.optional().nullable(),
     models: z.array(zModelFile).optional(),
-    definitions: z.object({
+    definitions: z
+      .object({
         subgraphs: z.lazy(
           (): z.ZodArray<
             z.ZodType<
@@ -366,6 +367,7 @@ export const zComfyWorkflow1 = zBaseExportableGraph
           > => z.array(zSubgraphDefinition)
         )
       })
+      .optional()
   })
   .passthrough()
 
@@ -426,8 +428,9 @@ export const zSubgraphDefinition = zComfyWorkflow1
     /** Ordered list of outputs from the subgraph itself. Similar to a reroute, with the input side in the subgraph, and the output side in the graph. */
     outputs: z.array(zSubgraphIO).optional(),
     /** A list of node widgets displayed in the parent graph, on the subgraph object. */
-    widgets: z.array(zExposedWidget),
-    definitions: z.object({
+    widgets: z.array(zExposedWidget).optional(),
+    definitions: z
+      .object({
         subgraphs: z.lazy(
           (): z.ZodArray<
             z.ZodType<
@@ -439,6 +442,7 @@ export const zSubgraphDefinition = zComfyWorkflow1
           > => zSubgraphDefinition.array()
         )
       })
+      .optional()
   })
   .passthrough()