Use Blender's angle snap setting in wall.py and profile.py

Replace hardcoded 5-degree angle snapping with Blender's
snap_angle_increment setting in create_wall_from_2_points()
and create_profile_from_2_points().

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/bonsai/bonsai/bim/module/model/profile.py

@@ -17,7 +17,7 @@
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
 
 import copy
-from math import atan2, degrees, pi
+from math import atan2, degrees, pi, radians
 from typing import Any, Literal, Optional, Union
 
 import bmesh
@@ -195,8 +195,8 @@ class DumbProfileGenerator:
         if should_round:
             # Round to nearest 50mm (yes, metric for now)
             self.length = 0.05 * round(length / 0.05)
-            # Round to nearest 5 degrees
-            nearest_degree = (pi / 180) * 5
+            angle_snap = tool.Snap.get_angle_snap_value(bpy.context)
+            nearest_degree = radians(angle_snap)
             self.rotation = nearest_degree * round(self.rotation / nearest_degree)
         self.location = coords[0]
         data["obj"] = self.create_profile()

src/bonsai/bonsai/bim/module/model/wall.py

@@ -916,8 +916,8 @@ class DumbWallGenerator:
         if should_round:
             # Round to nearest 50mm (yes, metric for now)
             self.length = 0.05 * round(length / 0.05)
-            # Round to nearest 5 degrees
-            nearest_degree = (math.pi / 180) * 5
+            angle_snap = tool.Snap.get_angle_snap_value(bpy.context)
+            nearest_degree = math.radians(angle_snap)
             self.rotation = nearest_degree * round(self.rotation / nearest_degree)
         self.location = coords[0]
         data["obj"] = self.create_wall()

src/bonsai/bonsai/tool/snap.py

@@ -118,10 +118,14 @@ class Snap(bonsai.core.tool.Snap):
     def get_angle_snap_value(cls, context: bpy.types.Context) -> float:
         """Get the angle snap increment from Blender's tool settings.
 
+        Uses snap_angle_increment_3d (Blender 5.0+) or snap_angle_increment (Blender 4.x).
+
         :param context: Blender context
         :return: Angle snap increment in degrees
         """
-        return context.scene.tool_settings.snap_angle_increment
+        if bpy.app.version >= (5, 0, 0):
+            return math.degrees(context.scene.tool_settings.snap_angle_increment_3d)
+        return math.degrees(context.scene.tool_settings.snap_angle_increment)
 
     @classmethod
     def get_snap_points_on_raycasted_face(cls, context, event, obj, face_index):