feat(admin): deeper order/income filters, post pay-type, topic sales meta

Add order user/payment filters, income/rebate user_id filter, posts list
pay_type dropdown, topic virtual_sales/coupon meta, and forum unlock
facade methods used by hidecontent/payshow.

inc/classes/class-aksrt-revenue.php

@@ -83,9 +83,9 @@ class AKSRT_Revenue {
     }
 
     /**
-     * Admin list (all users) with optional status filter.
+     * Admin list (all users) with optional status / user filter.
      *
-     * @param array{status?:string,limit?:int,offset?:int} $args
+     * @param array{status?:string,user_id?:int,limit?:int,offset?:int} $args
      * @return array{items:array<int,array>,total:int,page:int,max_pages:int}
      */
     public function get_list(array $args = []): array {
@@ -94,6 +94,7 @@ class AKSRT_Revenue {
         $limit  = max(1, min(100, (int) ($args['limit'] ?? 20)));
         $offset = max(0, (int) ($args['offset'] ?? 0));
         $status = sanitize_key((string) ($args['status'] ?? ''));
+        $user_id = (int) ($args['user_id'] ?? 0);
 
         $where  = [];
         $params = [];
@@ -101,6 +102,10 @@ class AKSRT_Revenue {
             $where[]  = 'status = %s';
             $params[] = $status;
         }
+        if ($user_id > 0) {
+            $where[]  = 'user_id = %d';
+            $params[] = $user_id;
+        }
         $where_sql = $where ? 'WHERE ' . implode(' AND ', $where) : '';
 
         $count_sql = "SELECT COUNT(*) FROM {$this->table()} {$where_sql}";