fix(uploads): load audio previews only on play

apps/web/e2e/upload-review.spec.ts

@@ -180,16 +180,31 @@ test('queue shows the current full destination after saving a changed source tem
   await expect(page.getByText('Artist/Album/Song.flac', { exact: true })).toHaveCount(0);
 });
 
-test('queue preview loads duration before play and plays signed audio', async ({ page }) => {
+test('queue preview only requests audio after play', async ({ page }) => {
   const wav = previewWav();
-  await page.route('**/api/v1/admin/uploads/files/*/stream?*', (route) => route.fulfill({ contentType: 'audio/wav', body: wav }));
+  let requested = 0;
+  let otherRequested = 0;
+  await page.route('**/api/v1/admin/uploads/files/*/stream?*', (route) => {
+    requested++;
+    return route.fulfill({ contentType: 'audio/wav', body: wav });
+  });
+  await page.route('**/api/v1/stream/mobile-preview', (route) => {
+    otherRequested++;
+    return route.fulfill({ contentType: 'audio/wav', body: wav });
+  });
   await setup(page, 'queue');
   await page.getByRole('button', { name: 'Развернуть пачку', exact: true }).click();
   const audio = page.locator('audio').first();
-  await expect(audio).toHaveAttribute('preload', 'metadata');
-  await expect.poll(() => audio.evaluate((el: HTMLAudioElement) => el.duration)).toBe(2);
+  await expect(audio).toHaveAttribute('preload', 'none');
+  await page.getByRole('button', { name: 'Свернуть пачку', exact: true }).click();
+  await page.getByRole('button', { name: 'Развернуть пачку', exact: true }).click();
+  expect(requested).toBe(0);
+  expect(otherRequested).toBe(0);
   await audio.evaluate((el: HTMLAudioElement) => el.play());
+  await expect.poll(() => audio.evaluate((el: HTMLAudioElement) => el.duration)).toBe(2);
   await expect.poll(() => audio.evaluate((el: HTMLAudioElement) => el.currentTime)).toBeGreaterThan(0);
+  expect(requested).toBeGreaterThan(0);
+  expect(otherRequested).toBe(0);
   expect(await audio.evaluate((el: HTMLAudioElement) => el.error)).toBeNull();
 });
 
@@ -210,6 +225,7 @@ test('queue preview explains HTTP failures and recovers on retry', async ({ page
   });
   await page.getByRole('button', { name: 'Развернуть пачку', exact: true }).click();
   const preview = page.locator('audio').first().locator('..');
+  await preview.locator('audio').evaluate((el: HTMLAudioElement) => el.play().catch(() => undefined));
   await expect(preview.getByRole('alert')).toHaveText('Не удалось загрузить аудио: HTTP 403.');
   available = true;
   await preview.getByRole('button', { name: 'Повторить', exact: true }).click();