feat(withdraw): 落地方案B一体化商城余额提现与手续费内扣模式，完善多端打款退款与对账闭环

tests/test_v3_debug_sign.php

@@ -0,0 +1,50 @@
+<?php
+define('APP_PATH', __DIR__ . '/../application/');
+define('ROOT_PATH', __DIR__ . '/../');
+$_SERVER['HTTP_HOST'] = 'henglian.gynhc.com';
+$_SERVER['SERVER_PORT'] = '443';
+$_SERVER['HTTPS'] = 'on';
+
+require_once ROOT_PATH . 'thinkphp/base.php';
+require_once ROOT_PATH . 'thinkphp/helper.php';
+\think\Config::set(\think\Config::load(APP_PATH . 'config.php'));
+\think\Config::set(include APP_PATH . 'database.php', 'database');
+\think\Loader::addNamespace('app', APP_PATH);
+\think\Loader::addNamespace('addons\\shopro', ROOT_PATH . 'addons/shopro/');
+require_once ROOT_PATH . 'addons/shopro/helper/helper.php';
+
+set_addon_config('epay', ['version' => 'v3'], false);
+
+require_once ROOT_PATH . 'addons/epay/Epay.php';
+$epay = new \addons\epay\Epay();
+$epay->actionBegin();
+
+$order_data = [
+    'order_id' => 1,
+    'out_trade_no' => 'P' . date('YmdHis') . '0004',
+    'total_amount' => 0.01,
+    'description' => '商城订单支付',
+    'payer' => [
+        'openid' => 'oUmhc3dnq-Z-f7GrVth17frJovX8',
+    ],
+];
+
+$payService = new \addons\shopro\library\pay\PayService('wechat', 'WechatMiniProgram');
+
+try {
+    $result = $payService->pay($order_data);
+    echo "SUCCESS!\n";
+    echo "Result Type: " . (is_object($result) ? get_class($result) : gettype($result)) . PHP_EOL;
+    echo "Result Structure:\n";
+    print_r($result);
+    echo "JSON:\n" . json_encode($result, JSON_UNESCAPED_UNICODE) . PHP_EOL;
+} catch (\Exception $e) {
+    echo "Caught Exception: " . get_class($e) . PHP_EOL;
+    echo "Message: " . $e->getMessage() . PHP_EOL;
+    echo "Code: " . $e->getCode() . PHP_EOL;
+    echo "File: " . $e->getFile() . ":" . $e->getLine() . PHP_EOL;
+    if (isset($e->extra)) {
+        echo "Extra:\n";
+        print_r($e->extra);
+    }
+}