fix(workflow-block): revert change bubbling up error for workflow block (#963)

Author: icecrasher321

apps/sim/executor/handlers/workflow/workflow-handler.ts

@@ -115,12 +115,6 @@ export class WorkflowBlockHandler implements BlockHandler {
         duration
       )
 
-      // If the child workflow failed, throw an error to trigger proper error handling in the parent
-      if ((mappedResult as any).success === false) {
-        const childError = (mappedResult as any).error || 'Unknown error'
-        throw new Error(`Error in child workflow "${childWorkflowName}": ${childError}`)
-      }
-
       return mappedResult
     } catch (error: any) {
       logger.error(`Error executing child workflow ${workflowId}:`, error)
@@ -134,15 +128,11 @@ export class WorkflowBlockHandler implements BlockHandler {
       const workflowMetadata = workflows[workflowId]
       const childWorkflowName = workflowMetadata?.name || workflowId
 
-      // Enhance error message with child workflow context
-      const originalError = error.message || 'Unknown error'
-
-      // Check if error message already has child workflow context to avoid duplication
-      if (originalError.startsWith('Error in child workflow')) {
-        throw error // Re-throw as-is to avoid duplication
-      }
-
-      throw new Error(`Error in child workflow "${childWorkflowName}": ${originalError}`)
+      return {
+        success: false,
+        error: error?.message || 'Child workflow execution failed',
+        childWorkflowName,
+      } as Record<string, any>
     }
   }