fix(test): 修复test_agent_docs.py相对路径问题，Unit Tests CI从apps/api运行也能通过 (#989)

apps/worker/video_processing/noise_reduction_engine.py

@@ -9,16 +9,21 @@ from __future__ import annotations
 
 import logging
 
+# isort: off
 from packages.domain.noise_reduction_config import (
     NoiseReductionConfig,
-    NoiseReductionLevel,
+    NoiseReductionLevel,  # noqa: F401
 )
 from packages.domain.noise_reduction_config import (
     apply_noise_reduction_if_needed as _apply_noise_reduction_if_needed_base,
 )
-from packages.domain.noise_reduction_config import build_afftdn_filter as _build_afftdn_filter_base  # noqa: F401 — 向后兼容
+from packages.domain.noise_reduction_config import (
+    build_afftdn_filter as _build_afftdn_filter_base,
+)  # noqa: F401 — 向后兼容
 from packages.domain.noise_reduction_config import build_arnndn_filter as _build_arnndn_filter_base
 
+# isort: on
+
 logger = logging.getLogger(__name__)