fix: 优化支付适配器配置和错误处理机制

- 新增BasePaymentAdapter配置状态管理
  - 添加isConfigured属性跟踪配置状态
  - 支持适配器配置验证机制

- 优化DouyinPaymentAdapter配置处理
  - 配置缺失时警告而非抛异常，允许应用正常启动
  - 在创建订单时检查配置状态并抛出友好错误
  - 提升系统容错性和用户体验

src/payment/adapters/base-payment.adapter.ts

@@ -38,6 +38,7 @@ import {
 @Injectable()
 export abstract class BasePaymentAdapter implements IPaymentAdapter {
   protected readonly logger = new Logger(this.constructor.name);
+  protected isConfigured: boolean = false;
 
   abstract platform: PlatformType;
   abstract paymentMethod: PaymentMethod;

src/payment/adapters/douyin-payment.adapter.ts

@@ -100,9 +100,13 @@ export class DouyinPaymentAdapter extends BasePaymentAdapter {
       !this.privateKey
     ) {
       const message = '抖音支付配置不完整，相关功能将不可用。请配置环境变量: DOUYIN_MINIPROGRAM_APPID, DOUYIN_MINIPROGRAM_SECRET, DOUYIN_MERCHANT_ID, DOUYIN_PRIVATE_KEY';
-      this.logger.error(message);
-      throw new ConfigurationException(message, 'DOUYIN_PAYMENT_CONFIG');
+      this.logger.warn(message);
+      // 不抛出异常，允许应用正常启动，但标记为未配置状态
+      this.isConfigured = false;
+      return;
     }
+    
+    this.isConfigured = true;
   }
 
   /**
@@ -114,6 +118,10 @@ export class DouyinPaymentAdapter extends BasePaymentAdapter {
   async createPaymentOrder(
     orderData: CreatePaymentOrderData,
   ): Promise<PaymentOrderResult> {
+    if (!this.isConfigured) {
+      throw new PaymentException('抖音支付未正确配置', undefined, 'PAYMENT_NOT_CONFIGURED');
+    }
+
     try {
       // 1. 参数验证
       if (!this.validateAmount(orderData.amount)) {