feat: 支付手续费功能
- 支持提供商级别和渠道级别手续费率配置(FEE_RATE_PROVIDER_* / FEE_RATE_*) - 用户多付手续费,到账金额不变(充值 ¥100 + 1.6% = 实付 ¥101.60) - 前端显示手续费明细和实付金额 - 退款时按实付金额退款,余额扣减到账金额
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@@ -30,6 +30,12 @@ export class PaymentProviderRegistry {
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const provider = this.providers.get(type as PaymentType);
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return provider?.defaultLimits?.[type];
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}
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/** 获取指定渠道对应的提供商 key(如 'easypay'、'stripe') */
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getProviderKey(type: string): string | undefined {
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const provider = this.providers.get(type as PaymentType);
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return provider?.providerKey;
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}
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}
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export const paymentRegistry = new PaymentProviderRegistry();
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