feat: add avatar payments and finance management

uniapp-avatar/src/utils/payment.js

@@ -0,0 +1,22 @@
+function parseOrderInfo(payment) {
+  if (payment.paymentParams && typeof payment.paymentParams === 'object') return payment.paymentParams
+  if (typeof payment.payMessage !== 'string') return payment.payMessage
+  try { return JSON.parse(payment.payMessage) } catch { return payment.payMessage }
+}
+
+export function requestAppPayment(payment) {
+  if (!payment || payment.payWay !== 'APP') {
+    return Promise.reject(new Error('当前订单不是 App 支付订单'))
+  }
+  const provider = payment.paymentMethod === 'alipay' ? 'alipay' : 'wxpay'
+  const orderInfo = parseOrderInfo(payment)
+  if (!orderInfo) return Promise.reject(new Error('支付参数为空'))
+  return new Promise((resolve, reject) => {
+    uni.requestPayment({
+      provider,
+      orderInfo,
+      success: resolve,
+      fail: error => reject(new Error(error?.errMsg || '支付未完成'))
+    })
+  })
+}