refactor: remove __init__ imports, add client/models/__init__.py

client/models/__init__.py

@@ -0,0 +1,3 @@
+"""
+Machine learning models (pose detection and face recognition)
+"""

client/models/pose_detection/__init__.py

@@ -1,6 +1,3 @@
 """
 Pose detection module
 """
-
-from .camera import is_camera_aligned
-from .classification import posture_classify