Associate application with an interview plan stage

Associates an application with a specific interview plan stage. Set `is_current_stage` to `true` to advance the application's active stage, or `false` to record a historical stage entry without changing the current stage. Pass `applicable_job_activities` to selectively trigger activities, omit it to trigger all, or pass an empty array to trigger none; if archiving the candidate, include `candidate_archivation_reason_id` and optionally `candidate_archivation_email_template_id` to send a rejection email. **Token scopes**: `ats:write`