修复小程序讲解页面返回回退

tests/unit/hostEnvironment.spec.ts

@@ -1,7 +1,6 @@
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import {
-  isEmbeddedInWechatMiniProgram,
-  navigateBackToWechatMiniProgram
+  isEmbeddedInWechatMiniProgram
 } from '@/utils/hostEnvironment'
 
 const createWindow = (overrides: Record<string, unknown> = {}) => ({
@@ -50,24 +49,3 @@ describe('微信小程序宿主环境识别', () => {
     expect(isEmbeddedInWechatMiniProgram()).toBe(false)
   })
 })
-
-describe('小程序宿主返回', () => {
-  it('嵌入态调用小程序 navigateBack', () => {
-    const navigateBack = vi.fn()
-    vi.stubGlobal('window', createWindow({
-      __wxjs_environment: 'miniprogram',
-      wx: { miniProgram: { navigateBack } }
-    }))
-
-    expect(navigateBackToWechatMiniProgram()).toBe(true)
-    expect(navigateBack).toHaveBeenCalledWith({ delta: 1 })
-  })
-
-  it('非嵌入态不会调用小程序返回桥接', () => {
-    const navigateBack = vi.fn()
-    vi.stubGlobal('window', createWindow({ wx: { miniProgram: { navigateBack } } }))
-
-    expect(navigateBackToWechatMiniProgram()).toBe(false)
-    expect(navigateBack).not.toHaveBeenCalled()
-  })
-})