Address pr comments

Author: TheodoreSpeaks

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/hooks/use-workflow-execution.ts

@@ -494,8 +494,13 @@ export function useWorkflowExecution() {
                       logger.error('Unexpected upload response format:', uploadResult)
                     }
                   } else {
+                    const cloned = response.clone()
                     const errorData = await response.json().catch(() => null)
-                    const reason = errorData?.message || errorData?.error || `${response.status}`
+                    const reason =
+                      errorData?.message ||
+                      errorData?.error ||
+                      (await cloned.text().catch(() => '')) ||
+                      `${response.status}`
                     const message = `Failed to upload ${fileData.name}: ${reason}`
                     logger.error(message)
                     if (isUploadErrorCapable(workflowInput)) {