fix: correct extract-voice API path from /tts to /voices prefix

Backend route is mounted under /voices, not /tts

apps/api/app/api/routes/voices.py

@@ -687,13 +687,13 @@ def extract_voice_from_video(
         raise HTTPException(
             status_code=status.HTTP_504_GATEWAY_TIMEOUT,
             detail="视频处理超时，请尝试较短的视频",
-        )
+        ) from None
     except Exception as e:
         logger.exception("提取视频配音失败: %s", e)
         raise HTTPException(
             status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
             detail="提取配音失败，请稍后重试",
-        )
+        ) from e
     finally:
         # 清理临时文件
         if tmp_dir and Path(tmp_dir).exists():
@@ -740,7 +740,7 @@ def _find_or_create_voice_library_for_extract(*, user_id, project_repository, as
         raise HTTPException(
             status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
             detail="配音素材库创建失败",
-        )
+        ) from None
 
 
 def _get_audio_duration(audio_path: Path) -> float:

apps/web/src/api/tts/jobs.ts

@@ -84,7 +84,7 @@ export const extractVideoVoice = async (
 
   return new Promise((resolve, reject) => {
     const xhr = new XMLHttpRequest()
-    xhr.open("POST", "/api/v1/tts/extract-video-voice")
+    xhr.open("POST", "/api/v1/voices/extract-voice")
 
     // 携带认证 token（从 localStorage 获取，与 apiClient 拦截器一致）
     const token = localStorage.getItem("access_token")