Move hot-path imports to module scope

Address Sourcery review feedback: move face_align and get_one_face
imports from inside per-frame functions to module-level to avoid
repeated attribute lookup overhead in the processing loop.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

modules/processors/frame/core.py

@@ -11,6 +11,7 @@ from tqdm import tqdm
 
 import modules
 import modules.globals
+from modules.face_analyser import get_one_face
 
 FRAME_PROCESSORS_MODULES: List[ModuleType] = []
 FRAME_PROCESSORS_INTERFACE = [
@@ -321,8 +322,6 @@ def _run_pipe_pipeline(
     bar_fmt = ('{l_bar}{bar}| {n_fmt}/{total_fmt} '
                '[{elapsed}<{remaining}, {rate_fmt}{postfix}]')
 
-    from modules.face_analyser import get_one_face
-
     try:
         with tqdm(total=total_frames, desc='Processing', unit='frame',
                   dynamic_ncols=True, bar_format=bar_fmt) as progress:

modules/processors/frame/face_swapper.py

@@ -1,6 +1,7 @@
 from typing import Any, List, Optional
 import cv2
 import insightface
+from insightface.utils import face_align
 import threading
 import numpy as np
 import platform
@@ -241,7 +242,6 @@ def swap_face(source_face: Face, target_face: Face, temp_frame: Frame) -> Frame:
             return original_frame
 
         # Get the aligned input crop for the mask (same as insightface does internally)
-        from insightface.utils import face_align
         aimg, _ = face_align.norm_crop2(temp_frame, target_face.kps, face_swapper.input_size[0])
 
         swapped_frame = _fast_paste_back(temp_frame, bgr_fake, aimg, M)