refactor: use explicit runtime facade getters

app/api/endpoints/dashboard.py

@@ -24,7 +24,7 @@ from app.api.dependencies.history import get_dashboard_query_service
 from app.application.dashboard import DashboardQueryService
 from app.schemas.types import StorageAction
 from app.application.directory import DirectoryHelper
-from app.application.scheduling import Scheduler
+from app.application.scheduling import get_scheduler
 from app.adapters.system.host import SystemUtils
 
 router = ResponseAPIRouter()
@@ -180,7 +180,7 @@ async def schedule(_: Any = Depends(get_current_active_superuser)) -> Any:
     查询后台服务信息
     """
     # 同步 list() 内含同步进度读取，放到线程池执行避免阻塞事件循环
-    return await run_in_threadpool(Scheduler().list)
+    return await run_in_threadpool(get_scheduler().list)
 
 
 @router.get(
@@ -195,7 +195,7 @@ async def schedule_progress(
     查询指定后台服务的执行进度。
     """
     # 异步进度后端读取，避免同步 Redis 调用阻塞事件循环
-    progress = await Scheduler().aget_progress(job_id)
+    progress = await get_scheduler().aget_progress(job_id)
     if not progress:
         return _SchemaResponse(success=False, message="后台服务不存在")
     return _SchemaResponse(success=True, data=progress.model_dump())
@@ -211,7 +211,7 @@ async def schedule2(_: Annotated[str, Depends(verify_apitoken)]) -> Any:
     查询下载器信息 API_TOKEN认证（?token=xxx）
     """
     # 同步 list() 内含同步进度读取，放到线程池执行避免阻塞事件循环
-    return await run_in_threadpool(Scheduler().list)
+    return await run_in_threadpool(get_scheduler().list)
 
 
 @router.get(
@@ -226,7 +226,7 @@ async def schedule_progress2(
     查询指定后台服务的执行进度 API_TOKEN认证（?token=xxx）
     """
     # 异步进度后端读取，避免同步 Redis 调用阻塞事件循环
-    progress = await Scheduler().aget_progress(job_id)
+    progress = await get_scheduler().aget_progress(job_id)
     if not progress:
         return _SchemaResponse(success=False, message="后台服务不存在")
     return _SchemaResponse(success=True, data=progress.model_dump())