fix(P0): 修复取消链路断裂，前端取消后 GPU 仍继续推理 (#2009)

Co-authored-by: xiaoxia <dev@xiaoxiajianji.com>
Co-committed-by: xiaoxia <dev@xiaoxiajianji.com>

apps/api/app/api/routes/gpu_lipsync.py

@@ -93,7 +93,7 @@ def register_worker(
     svc: GpuLipsyncService = Depends(_get_svc),
     _token: str = Depends(_verify_gpu_token),
 ):
-    svc.register_worker(
+    worker, cancel_task = svc.register_worker(
         worker_id=body.worker_id,
         hostname=body.hostname,
         gpu_name=body.gpu_name,
@@ -101,7 +101,7 @@ def register_worker(
         capabilities=body.capabilities,
         task_id=body.task_id,
     )
-    return GpuWorkerRegisterResponse(ok=True, server_time=datetime.now(UTC), message="ok")
+    return GpuWorkerRegisterResponse(ok=True, server_time=datetime.now(UTC), message="ok", cancel_task=cancel_task)
 
 
 # ── GET /lipsync/poll — Worker 轮询拉任务 ─────────────────────────

apps/api/app/api/routes/lipsync.py

@@ -346,13 +346,13 @@ def cancel_lipsync_job(
     current_user: AuthenticatedUser = Depends(get_current_user),
     svc: LipsyncService = Depends(_get_service),
 ):
-    """取消对口型任务（仅 pending/tts_processing/submitted 状态可取消）."""
+    """取消对口型任务（仅 pending/tts_processing/submitted/processing 状态可取消）."""
     job = svc.cancel_job(job_id, current_user.user.id)
     if job is None:
         raise HTTPException(status_code=404, detail="任务不存在")
     if job.status != "cancelled":
         raise HTTPException(
             status_code=400,
-            detail=f"任务状态 {job.status} 不可取消，仅 pending/tts_processing/submitted 可取消",
+            detail=f"任务状态 {job.status} 不可取消，仅 pending/tts_processing/submitted/processing 可取消",
         )
     return job