修复讲解语音切换后播放器未刷新

- 暂停时切换语言或男女声同步刷新音轨、时长和进度
- 保持暂停状态，播放中继续自动切换新音轨
- 补充语音切换播放器刷新回归测试

Made-with: Proma

tests/unit/ExhibitDetailAudioFirst.spec.ts

@@ -12,6 +12,7 @@ const mocks = vi.hoisted(() => ({
   loadExplainDetailText: vi.fn(),
   selectAudioForExplainDetail: vi.fn(),
   play: vi.fn(),
+  prepare: vi.fn(),
   pause: vi.fn(),
   resume: vi.fn(),
   close: vi.fn(),
@@ -61,8 +62,15 @@ vi.mock('@/usecases/guideUseCase', () => ({
 vi.mock('@/composables/useGlobalAudioPlayer', () => ({
   useGlobalAudioPlayer: () => ({
     ...audioState,
-    isCurrentSource: () => false,
+    isCurrentSource: (source: { stopId?: string, lang?: string, channelCode?: string }) => Boolean(
+      audioState.currentAudio.value
+      && audioState.currentSource.value
+      && audioState.currentSource.value.stopId === source.stopId
+      && (!source.lang || audioState.currentSource.value.lang === source.lang)
+      && (!source.channelCode || audioState.currentSource.value.channelCode === source.channelCode)
+    ),
     play: mocks.play,
+    prepare: mocks.prepare,
     pause: mocks.pause,
     resume: mocks.resume,
     switchLanguage: vi.fn(),
@@ -346,6 +354,81 @@ describe('讲解详情音频优先布局', () => {
     }))
   })
 
+  it('暂停时切换语言立即刷新播放器但不自动播放', async () => {
+    const bilingualExhibit = {
+      ...exhibit,
+      audioLanguage: 'en-US',
+      audioOptions: [
+        { channelCode: 'standard.zh-CN.female', version: 'standard', languageCode: 'zh-CN', gender: 'female', playUrl: '/assets/zh-female.mp3', duration: 50 },
+        { channelCode: 'standard.en-US.female', version: 'standard', languageCode: 'en-US', gender: 'female', playUrl: '/assets/en-female.mp3', duration: 80 }
+      ]
+    }
+    mocks.enterExplainDetail.mockResolvedValue(bilingualExhibit)
+    mocks.selectAudioForExplainDetail.mockImplementation(async (data: { audioLanguage: string }) => {
+      const option = bilingualExhibit.audioOptions.find((item) => item.languageCode === data.audioLanguage)!
+      return {
+        playable: true,
+        exhibit: bilingualExhibit,
+        media: { id: option.channelCode, url: option.playUrl, duration: option.duration, language: option.languageCode },
+        playInfo: { title: exhibit.name }
+      }
+    })
+    audioState.currentAudio.value = { id: 'standard.en-US.female', audioUrl: '/assets/en-female.mp3' }
+    audioState.currentSource.value = { stopId: 'stop-1', lang: 'en-US', channelCode: 'standard.en-US.female' }
+    audioState.playing.value = false
+    const wrapper = mount(ExhibitDetail, {
+      global: { stubs: { GuidePageFrame: GuidePageFrameStub } }
+    })
+
+    await mocks.onLoadHandler?.({ id: exhibit.id, stopId: 'stop-1', lang: 'en-US' })
+    await flushPromises()
+    await wrapper.findAll('.language-option').find((button) => button.text() === '中文')!.trigger('tap')
+    await flushPromises()
+
+    expect(mocks.prepare).toHaveBeenCalledWith(
+      expect.objectContaining({ audioUrl: '/assets/zh-female.mp3', language: 'zh-CN', duration: 50 }),
+      expect.objectContaining({ source: expect.objectContaining({ lang: 'zh-CN', channelCode: 'standard.zh-CN.female' }) })
+    )
+    expect(mocks.play).not.toHaveBeenCalled()
+  })
+
+  it('暂停时切换男女声立即刷新播放器但不自动播放', async () => {
+    const voiceExhibit = {
+      ...exhibit,
+      audioOptions: [
+        { channelCode: 'standard.en-US.female', version: 'standard', languageCode: 'en-US', gender: 'female', playUrl: '/assets/en-female.mp3', duration: 80 },
+        { channelCode: 'standard.en-US.male', version: 'standard', languageCode: 'en-US', gender: 'male', playUrl: '/assets/en-male.mp3', duration: 75 }
+      ]
+    }
+    mocks.enterExplainDetail.mockResolvedValue(voiceExhibit)
+    mocks.selectAudioForExplainDetail.mockImplementation(async (_data: unknown, options: { voiceGender?: string }) => {
+      const option = voiceExhibit.audioOptions.find((item) => item.gender === options.voiceGender)!
+      return {
+        playable: true,
+        exhibit: voiceExhibit,
+        media: { id: option.channelCode, url: option.playUrl, duration: option.duration, language: option.languageCode },
+        playInfo: { title: exhibit.name }
+      }
+    })
+    audioState.currentAudio.value = { id: 'standard.en-US.female', audioUrl: '/assets/en-female.mp3' }
+    audioState.currentSource.value = { stopId: 'stop-1', lang: 'en-US', channelCode: 'standard.en-US.female' }
+    audioState.playing.value = false
+    const wrapper = mount(ExhibitDetail, {
+      global: { stubs: { GuidePageFrame: GuidePageFrameStub } }
+    })
+
+    await mocks.onLoadHandler?.({ id: exhibit.id, stopId: 'stop-1', lang: 'en-US' })
+    await flushPromises()
+    await wrapper.get('.detail-audio-voice').trigger('tap')
+    await flushPromises()
+
+    expect(mocks.prepare).toHaveBeenCalledWith(
+      expect.objectContaining({ audioUrl: '/assets/en-male.mp3', duration: 75 }),
+      expect.objectContaining({ source: expect.objectContaining({ voiceGender: 'male', channelCode: 'standard.en-US.male' }) })
+    )
+    expect(mocks.play).not.toHaveBeenCalled()
+  })
+
   it('播放器单行提供倍速循环和男女声切换', async () => {
     mocks.enterExplainDetail.mockResolvedValue({
       ...exhibit,