feat(widgets): paid posts AJAX + hot posts thumb persist

Wire /widgets/paid-posts load-more; fix hot posts show_thumb
not saved in update().

src/AKSRT/Core/WidgetAjax.php

@@ -34,6 +34,11 @@ class WidgetAjax {
 			'callback'            => [$this, 'rest_tab_posts'],
 			'permission_callback' => '__return_true',
 		]);
+		register_rest_route('aksrt/v1', '/widgets/paid-posts', [
+			'methods'             => 'GET',
+			'callback'            => [$this, 'rest_paid_posts'],
+			'permission_callback' => '__return_true',
+		]);
 	}
 
 	public function rest_main_posts(\WP_REST_Request $request) {
@@ -89,4 +94,26 @@ class WidgetAjax {
 			'html'    => $html,
 		], 200);
 	}
+
+	public function rest_paid_posts(\WP_REST_Request $request) {
+		if (!class_exists('\AKSRT\Widgets\WidgetPaidPosts')) {
+			return new \WP_REST_Response(['success' => false, 'message' => 'unavailable'], 500);
+		}
+		$instance = [
+			'count'    => max(1, min(20, (int) ($request->get_param('count') ?? 6))),
+			'orderby'  => sanitize_key((string) ($request->get_param('orderby') ?? 'date')),
+			'paginate' => sanitize_key((string) ($request->get_param('paginate') ?? 'ajax')),
+		];
+		$page = max(1, (int) ($request->get_param('page') ?? $request->get_param('paged') ?? 1));
+		$payload = \AKSRT\Widgets\WidgetPaidPosts::query_payload($instance, $page);
+		return new \WP_REST_Response([
+			'success'       => true,
+			'html'          => (string) ($payload['html'] ?? ''),
+			'paginate_html' => (string) ($payload['paginate_html'] ?? ''),
+			'has_more'      => !empty($payload['has_more']),
+			'page'          => (int) ($payload['page'] ?? $page),
+			'max_pages'     => (int) ($payload['max_pages'] ?? 1),
+			'total'         => (int) ($payload['total'] ?? 0),
+		], 200);
+	}
 }