{{--
Per-step message + action preview, mirrors action-capture-preview-drawer.blade.php.
Both messages and actions are per-step (loaded via /step-preview API).
Actions come from event_step.action_id.
Usage:
@include('basic.friend_detail.partials.broadcast-step-preview', ['stepVar' => 'step'])
Step object must expose: preview_tab_id, preview_loading, preview.messages, preview.actions.
--}}
@php($s = $stepVar)