fix(avatar): mark native shell before bridge readiness

digital-avatar-app/src/utils/uniapp-bridge.ts

@@ -12,9 +12,10 @@ export interface UniLaunchParams {
   nickname?: string
   avatar?: string
   ts?: string
+  nativeShell?: string
 }
 
-const PARAM_KEYS: (keyof UniLaunchParams)[] = ['token', 'userId', 'nickname', 'avatar', 'ts']
+const PARAM_KEYS: (keyof UniLaunchParams)[] = ['token', 'userId', 'nickname', 'avatar', 'ts', 'nativeShell']
 
 function readParams(search: string, target: UniLaunchParams): void {
   const sp = new URLSearchParams(search)
@@ -24,6 +25,16 @@ function readParams(search: string, target: UniLaunchParams): void {
   }
 }
 
+function hasNativeShellMarker(): boolean {
+  const params = getLaunchParams()
+  if (params.nativeShell === 'uniapp') return true
+
+  // Compatibility for already-installed shells. They have always appended a
+  // timestamp together with the native SSO context, even before the explicit
+  // nativeShell marker existed.
+  return Boolean(params.ts && (params.token || params.userId))
+}
+
 // 是否运行在 uniapp web-view 环境中
 export function isInUniWebView(): boolean {
   const runtime = window as any
@@ -40,7 +51,10 @@ export function isInUniWebView(): boolean {
     runtime.swan?.webView ||
     runtime.tt?.miniProgram
   )
-  return Boolean(runtime.uni?.webView && (isDCloudApp || isMiniProgram))
+  // `plus` can be injected after the H5 entry point runs. The native shell
+  // therefore adds a URL marker while creating its web-view URL, so the
+  // payment entry does not disappear during that startup window.
+  return Boolean(runtime.uni?.webView && (isDCloudApp || isMiniProgram || hasNativeShellMarker()))
 }
 
 // 解析 web-view 加载 URL 时原生注入的参数（token / 会会用户）

uniapp-avatar/src/utils/bridge.js

@@ -1,5 +1,8 @@
 export function buildH5Url(base, session) {
   const url = new URL(base)
+  // This is deliberately explicit instead of relying on the timing of the
+  // H5+ `plus` injection inside the embedded page.
+  url.searchParams.set('nativeShell', 'uniapp')
   if (session.token) url.searchParams.set('token', session.token)
   if (session.userId) url.searchParams.set('userId', session.userId)
   if (session.nickname) url.searchParams.set('nickname', session.nickname)