加入了 GVSDSDK 模块，进行了 QModel 兼容层的尝试，生产环境可用

gvsdsdk/payment/gateways/registry.py

@@ -0,0 +1,93 @@
+"""模块：支付网关注册表
+网关注册工厂——管理所有支付渠道适配器的注册与发现。
+子服务通过注册表获取网关实例，不需要知道具体实现类。"""
+
+from typing import Dict, Type, Optional
+from gvsdsdk.payment.gateways.base import (
+    AbstractPaymentGateway,
+    PaymentCredentials,
+    PaymentChannel,
+)
+
+
+class GatewayRegistry:
+    """支付网关注册工厂
+
+    用法:
+        registry = GatewayRegistry()
+
+        # 注册渠道
+        registry.register('wechat', WechatPaymentGateway)
+
+        # 创建网关实例
+        gw = registry.create('wechat', credentials)
+        resp = gw.Pay(request)
+    """
+
+    def __init__(self):
+        self._gateways: Dict[str, Type[AbstractPaymentGateway]] = {}
+
+    def register(self, channel: str, gateway_class: Type[AbstractPaymentGateway]):
+        """注册支付渠道适配器
+
+        Args:
+            channel: 渠道标识（如 'wechat', 'alipay', 'bank'）
+            gateway_class: 实现 AbstractPaymentGateway 的适配器类
+        """
+        if not issubclass(gateway_class, AbstractPaymentGateway):
+            raise TypeError(
+                f'{gateway_class.__name__} 必须继承 AbstractPaymentGateway'
+            )
+        self._gateways[channel] = gateway_class
+
+    def unregister(self, channel: str):
+        """注销支付渠道"""
+        self._gateways.pop(channel, None)
+
+    def create(self, channel: str, credentials: PaymentCredentials) -> AbstractPaymentGateway:
+        """根据渠道标识创建网关实例
+
+        Args:
+            channel: 渠道标识
+            credentials: 支付凭证
+
+        Returns:
+            AbstractPaymentGateway 实例
+
+        Raises:
+            ValueError: 渠道未注册
+        """
+        gateway_class = self._gateways.get(channel)
+        if gateway_class is None:
+            raise ValueError(
+                f'未注册的支付渠道: {channel}，可用渠道: {list(self._gateways.keys())}'
+            )
+        return gateway_class(credentials)
+
+    def list_channels(self):
+        """列出所有已注册的支付渠道"""
+        return list(self._gateways.keys())
+
+    def get_gateway_info(self, channel: str):
+        """获取渠道信息"""
+        gateway_class = self._gateways.get(channel)
+        if gateway_class is None:
+            return None
+        dummy = gateway_class
+        return {
+            'channel': dummy.Channel,
+            'name': dummy.Name,
+        }
+
+    def list_all_info(self):
+        """列出所有渠道信息"""
+        return [
+            {
+                'channel': cls.Channel,
+                'name': cls.Name,
+            }
+            for cls in self._gateways.values()
+        ]
+
+
+payment_registry = GatewayRegistry()