fix: 补全iOS抖音支付SDK回跳URL

uni_modules/tb-douyin-pay/package.json

@@ -1,7 +1,7 @@
 {
   "id": "tb-douyin-pay",
   "displayName": "TB 抖音支付",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "description": "独立实现的抖音支付官方 SDK UTS 桥接",
   "engines": { "HBuilderX": ">=4.36.0" },
   "uni_modules": {

uni_modules/tb-douyin-pay/utssdk/app-ios/index.uts

@@ -9,8 +9,19 @@ export function resetDypay(): void {
 }
 
 export function initDypay(options: InitOptions): boolean {
-  if (options.callbackScheme.trim().length == 0 || !configure(options.appId)) return false
-  TbDouyinPayNative.initialize(options.appId, options.callbackScheme, options.universalLink ?? '')
+  let callbackURL = options.callbackScheme.trim()
+  if (callbackURL.length == 0) return false
+  // CFBundleURLSchemes contains a bare scheme, but Dypay's callbackScheme API
+  // requires a complete URL. Official registration example: <scheme>://dypay.
+  // https://pay.douyinpay.com/wiki/639fd757f4a57b0226bb2066/639fd78317c2f3021d238378
+  if (callbackURL.indexOf('://') < 0) {
+    callbackURL = callbackURL + '://dypay'
+  } else if (callbackURL.endsWith('://')) {
+    callbackURL = callbackURL + 'dypay'
+  }
+  if (!new RegExp('^[A-Za-z][A-Za-z0-9+.-]*://dypay$').test(callbackURL)) return false
+  if (!configure(options.appId)) return false
+  TbDouyinPayNative.initialize(options.appId, callbackURL, options.universalLink ?? '')
   return true
 }
 

uni_modules/tb-douyin-pay/utssdk/interface.uts

@@ -1,5 +1,6 @@
 export type InitOptions = {
   appId: string,
+  // Host's registered scheme; iOS converts it to <scheme>://dypay for the SDK.
   callbackScheme: string,
   universalLink?: string | null
 }