Moved Armature Validation to it's own file

functions/tools/additional_tools.py

@@ -4,7 +4,8 @@ from bpy.types import Operator, Context
 from typing import Set
 from ...core.translations import t
 from ...core.logging_setup import logger
-from ...core.common import get_active_armature, get_all_meshes, validate_armature, remove_unused_shapekeys
+from ...core.common import get_active_armature, get_all_meshes, remove_unused_shapekeys
+from ...core.armature_validation import validate_armature
 
 class AvatarToolkit_OT_ApplyTransforms(Operator):
     """Apply all transformations to armature and associated meshes"""

functions/tools/bone_tools.py

@@ -5,12 +5,11 @@ from typing import Optional, Dict, Any, List, Tuple
 from ...core.translations import t
 from ...core.common import (
     get_active_armature, 
-    validate_armature, 
     get_all_meshes,
     ProgressTracker,
-    validate_bone_hierarchy,
     restore_bone_transforms
 )
+from ...core.armature_validation import validate_armature, validate_bone_hierarchy
 
 def duplicate_bone(bone: EditBone) -> EditBone:
     """Create a duplicate of the given bone"""

functions/tools/convert_resonite.py

@@ -4,8 +4,9 @@ from typing import Set, Dict, Optional
 from bpy.types import Operator, Context
 from ...core.translations import t
 from ...core.logging_setup import logger
-from ...core.common import get_active_armature, simplify_bonename, validate_armature, ProgressTracker
+from ...core.common import get_active_armature, simplify_bonename, ProgressTracker
 from ...core.dictionaries import bone_names, resonite_translations
+from ...core.armature_validation import validate_armature
 
 class AvatarToolkit_OT_ConvertResonite(Operator):
     """Convert armature bone names to Resonite format with progress tracking and validation"""

functions/tools/merge_tools.py

@@ -4,7 +4,8 @@ from typing import Set, List
 from bpy.types import Operator, Context, Armature, EditBone
 from ...core.translations import t
 from ...core.logging_setup import logger
-from ...core.common import get_active_armature, get_all_meshes, get_vertex_weights, transfer_vertex_weights, validate_armature
+from ...core.common import get_active_armature, get_all_meshes, get_vertex_weights, transfer_vertex_weights
+from ...core.armature_validation import validate_armature
 
 class AvatarToolkit_OT_ConnectBones(Operator):
     """Connect disconnected bones in chain"""

functions/tools/mesh_separation.py

@@ -1,7 +1,8 @@
 import bpy
 from bpy.types import Operator, Context
 from ...core.translations import t
-from ...core.common import get_active_armature, validate_armature
+from ...core.common import get_active_armature
+from ...core.armature_validation import validate_armature
 
 class AvatarToolKit_OT_SeparateByMaterials(Operator):
     """Operator to separate mesh by materials"""