feat: upgrade widgets and affiliate commission flow

src/Content/PayOrders.php

@@ -92,32 +92,8 @@ trait PayOrders {
             aksrt_burn_order_coupon($order_number, $meta, $buyer_id);
         }
 
-        // Affiliate commission (does not reduce buyer pay).
-        $referrer_id = (int) ($meta['referrer_id'] ?? 0);
-        $rebate_price = round((float) ($meta['rebate_price'] ?? 0), 2);
-        $pay_amount = round((float) ($order['amount'] ?? $meta['payable'] ?? 0), 2);
-        if ($referrer_id <= 0 || $rebate_price <= 0 || $pay_amount <= 0) {
-            return;
-        }
-        if (!class_exists('\AKSRT\Payment\Rebate')) {
-            return;
-        }
-        if ($this->rebate_log_exists($order_number, $referrer_id)) {
-            return;
-        }
-        \AKSRT\Payment\Rebate::get_instance()->create([
-            'user_id'        => $referrer_id,
-            'order_number'   => $order_number,
-            'source_user_id' => $buyer_id,
-            'amount'         => $rebate_price,
-            'type'           => \AKSRT\Payment\Rebate::TYPE_ORDER,
-            'note'           => sprintf(
-                /* translators: 1: order number 2: post id */
-                __('内容推广返佣 订单 %1$s 内容 #%2$d', 'aksrt'),
-                $order_number,
-                (int) ($order['product_id'] ?? $meta['post_id'] ?? 0)
-            ),
-        ]);
+        // Affiliate commission is recorded exactly once by CommissionLedger on
+        // the canonical aksrt_order_paid event. No order-side legacy writes.
     }
 
 
@@ -140,22 +116,6 @@ trait PayOrders {
 
 
 
-    private function rebate_log_exists(string $order_number, int $referrer_id): bool {
-        global $wpdb;
-        $table = \AKSRT\Core\DBMigrator::table('rebate_log');
-        if ($table === '' || $order_number === '') {
-            return false;
-        }
-        $found = $wpdb->get_var($wpdb->prepare(
-            "SELECT id FROM {$table} WHERE order_number = %s AND user_id = %d LIMIT 1",
-            $order_number,
-            $referrer_id
-        ));
-        return !empty($found);
-    }
-
-
-
     /**
      * Points one-shot purchase → permanent resource order.
      *