fix: 修复语音消息取错、时长精度与转写不刷新

- 时长解析：改取 <voicemsg voicelength>（毫秒），不再误取 length（SILK 字节数）
- 时长显示：四舍五入对齐微信口径，有原生时长时不被解码时长覆盖
- 转写：重新识别改为强制重算，跳过身份级缓存短路（音频级缓存仍生效）
- 日报：语音累计秒数显示取整，不再出现小数

tests/component/voice-player.test.tsx

@@ -1,4 +1,4 @@
-import { render, screen, waitFor } from '@testing-library/react'
+import { act, render, screen, waitFor } from '@testing-library/react'
 import userEvent from '@testing-library/user-event'
 import { beforeEach, describe, expect, it, vi } from 'vitest'
 import { VoicePlayer } from '../../src/renderer/src/components/VoicePlayer'
@@ -6,6 +6,8 @@ import { VoicePlayer } from '../../src/renderer/src/components/VoicePlayer'
 const play = vi.fn(() => Promise.resolve())
 const pause = vi.fn()
 
+let lastAudio: FakeAudio | null = null
+
 class FakeAudio {
   preload = ''
   src = ''
@@ -18,12 +20,27 @@ class FakeAudio {
   pause = pause
   load = vi.fn()
   removeAttribute = vi.fn()
+
+  constructor() {
+    lastAudio = this
+  }
 }
 
+const renderPlayer = (duration?: number) =>
+  render(
+    <VoicePlayer
+      sessionId="filehelper"
+      localId={11}
+      createTime={1785553200}
+      duration={duration}
+    />
+  )
+
 describe('VoicePlayer', () => {
   beforeEach(() => {
     play.mockClear()
     pause.mockClear()
+    lastAudio = null
     vi.stubGlobal('Audio', FakeAudio)
     window.api = {
       getVoiceData: vi.fn().mockResolvedValue({
@@ -70,17 +87,73 @@ describe('VoicePlayer', () => {
     render(<VoicePlayer sessionId="filehelper" localId={11} createTime={1785553200} duration={1} />)
     await userEvent.click(screen.getByRole('button', { name: '转文字' }))
 
+    // 用户主动触发必须带 force：否则会被身份级缓存（不含 audio_hash）短路。
     await waitFor(() =>
-      expect(window.api.recognizeVoice).toHaveBeenCalledWith({
-        sessionId: 'filehelper',
-        localId: 11,
-        createTime: 1785553200,
-        svrId: undefined
-      })
+      expect(window.api.recognizeVoice).toHaveBeenCalledWith(
+        {
+          sessionId: 'filehelper',
+          localId: 11,
+          createTime: 1785553200,
+          svrId: undefined
+        },
+        { force: true }
+      )
     )
     expect(await screen.findByText('这是固定的测试转写')).toBeInTheDocument()
   })
 
+  it('rounds the shown duration the way WeChat does', () => {
+    // 微信 4211ms 显示 4"，所以口径是 round 不是 floor；进位要传给分钟位。
+    const cases: Array<[number | undefined, string]> = [
+      [1.7, '0:02'],
+      [4.211, '0:04'],
+      [7.505, '0:08'],
+      [59.6, '1:00'],
+      [119.6, '2:00'],
+      [3, '0:03'],
+      [7, '0:07'],
+      [15, '0:15'],
+      [0, '0:00'],
+      [undefined, '0:00'],
+      [NaN, '0:00']
+    ]
+    for (const [duration, expected] of cases) {
+      const { container, unmount } = renderPlayer(duration)
+      expect(container.querySelector('.voice-duration')?.textContent).toBe(expected)
+      unmount()
+    }
+  })
+
+  it('keeps the WeChat duration instead of the systematically short decoded one', async () => {
+    const { container } = renderPlayer(1.979)
+    expect(container.querySelector('.voice-duration')?.textContent).toBe('0:02')
+
+    await userEvent.click(container.querySelector('.voice-message') as HTMLElement)
+    await waitFor(() => expect(lastAudio).not.toBeNull())
+    // Silk 解码时长比微信 length 系统性偏短（实测少 20–279ms），用它覆盖会把精度弄丢。
+    lastAudio!.duration = 1
+    await act(async () => {
+      lastAudio!.onloadedmetadata?.()
+      lastAudio!.ontimeupdate?.()
+    })
+
+    expect(container.querySelector('.voice-duration')?.textContent).toBe('0:02')
+  })
+
+  it('falls back to the decoded duration when WeChat did not provide one', async () => {
+    const { container } = renderPlayer()
+    expect(container.querySelector('.voice-duration')?.textContent).toBe('0:00')
+
+    await userEvent.click(container.querySelector('.voice-message') as HTMLElement)
+    await waitFor(() => expect(lastAudio).not.toBeNull())
+    lastAudio!.duration = 59.6
+    lastAudio!.onloadedmetadata?.()
+
+    await waitFor(() =>
+      expect(container.querySelector('.voice-duration')?.textContent).toBe('1:00')
+    )
+  })
+
   it('opens centralized settings when recognition assets are missing', async () => {
     vi.mocked(window.api.getVoiceModelStatus).mockResolvedValue({
       modelId: 'sensevoice-small-int8',