fix: 清理 create_asset 废弃后的 unused imports

- 删除 CreateAssetRequest import
- 删除 CreateAssetCommand/UseCase imports
- 删除 AssetStatus/ClassificationStatus imports
- 修复 ingest.py 日志信息 (300s → 900s)

apps/api/app/api/routes/assets.py

@@ -18,7 +18,6 @@ from app.schemas.asset import (
     BatchMarkRequest,
     BatchOperationResponse,
     BatchTagRequest,
-    CreateAssetRequest,
     ListAssetsResponse,
     SmartMatchItem,
     SmartMatchRequest,
@@ -29,11 +28,6 @@ from app.schemas.asset import (
 from app.schemas.tag import TagAssetsRequest
 from fastapi import APIRouter, Depends, HTTPException, Query, Response
 
-from packages.application import (
-    CreateAssetCommand,
-    CreateAssetUseCase,
-)
-from packages.domain import AssetStatus, ClassificationStatus
 from packages.domain.smart_match import smart_select_assets
 
 logger = logging.getLogger(__name__)

apps/worker/worker_app/tasks/ingest.py

@@ -376,7 +376,7 @@ def ingest_asset(job_id: str) -> dict:
                             )
                     except subprocess.TimeoutExpired:
                         logger.warning(
-                            "FFmpeg 转码超时 (300s)，降级原始文件: job_id=%s",
+                            "FFmpeg 转码超时 (900s)，降级原始文件: job_id=%s",
                             job_id,
                         )
                     except Exception as _e: