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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@@ -14,6 +14,7 @@ import { getEnv } from '@/lib/config';
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export class EasyPayProvider implements PaymentProvider {
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readonly name = 'easy-pay';
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readonly providerKey = 'easypay';
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readonly supportedTypes: PaymentType[] = ['alipay', 'wxpay'];
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readonly defaultLimits = {
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alipay: { singleMax: 1000, dailyMax: 10000 },
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