https://sonarly.com/issue/13598?type=bug
`useHttpRequestOutputSchema` hook calls `Object.keys(action.settings.outputSchema)` without guarding against `undefined`, crashing when a workflow's HTTP Request step has no `outputSchema` in its persisted settings JSON.
Fix: Added an `isDefined(action.settings.outputSchema)` guard before calling `Object.keys(action.settings.outputSchema)` in `useHttpRequestOutputSchema.ts`.
When a workflow's HTTP Request step has stored settings JSON that is missing the `outputSchema` field (e.g., from direct DB manipulation or a code path that didn't include it), the hook now gracefully initializes the `outputSchema` state to `null` instead of crashing with `TypeError: undefined is not an object`.
This matches the team's established pattern of using `isDefined()` from `twenty-shared/utils` for null guards, as seen in `filterOutputSchema.ts` and `useAvailableVariablesInWorkflowStep.ts`.
The fix is minimal and safe: when `outputSchema` is missing, the user sees an empty output schema field they can populate — the same experience as a newly created HTTP Request step.