Move dimension anchor/regen buttons to annotation tool; ForcePerpendicularToFace toggle updates selection

workspace.py:
- Move "Set Dimension Anchor" and "Regenerate" buttons from the properties
  panel (ui.py) into draw_edit_object_interface in the annotation tool,
  visible whenever a selected object is a dimension-type IfcAnnotation
- Change force_perpendicular_to_face from a push-button (toggle=True) to
  a standard checkbox for clearer on/off state

ui.py:
- Remove the "Parametric Dimension" section (now lives in the tool header)

prop.py:
- Add _update_force_perpendicular update callback: when the checkbox is
  toggled, iterates all selected dimension annotations, writes the new
  ForcePerpendicularToFace value to each BBIM_Dimension pset, and calls
  regenerate_dimension so the constraint is applied immediately

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/bonsai/bonsai/bim/module/drawing/ui.py

@@ -571,18 +571,6 @@ class BIM_PT_product_assignments(Panel):
             col.operator("bim.select_assigned_product", icon="RESTRICT_SELECT_OFF", text="")
             col.enabled = bool(ProductAssignmentsData.data["relating_product"])
 
-        # Parametric dimension controls
-        element = tool.Ifc.get_entity(obj)
-        if element:
-            import ifcopenshell.util.element
-            ptype = ifcopenshell.util.element.get_predefined_type(element)
-            if ptype in ("DIMENSION", "RADIUS", "DIAMETER", "ANGLE", "PLAN_LEVEL", "SECTION_LEVEL"):
-                self.layout.separator()
-                self.layout.label(text="Parametric Dimension", icon="CONSTRAINT")
-                row = self.layout.row(align=True)
-                row.operator("bim.set_dimension_anchor", icon="PIVOT_CURSOR")
-                op = row.operator("bim.regenerate_dimensions", icon="FILE_REFRESH", text="Regenerate")
-                op.active_only = True
 
 
 

src/bonsai/bonsai/bim/module/drawing/workspace.py

@@ -250,6 +250,17 @@ class AnnotationToolUI:
                 op = row.operator("bim.regenerate_dimensions", icon="FILE_REFRESH", text="Regenerate")
                 op.active_only = True
 
+        obj = context.active_object
+        element = tool.Ifc.get_entity(obj) if obj else None
+        if element and element.is_a("IfcAnnotation"):
+            ptype = ifcopenshell.util.element.get_predefined_type(element)
+            if ptype in cls._DIMENSION_TYPES:
+                cls.layout.separator()
+                row = cls.layout.row(align=True)
+                row.operator("bim.set_dimension_anchor", icon="PIVOT_CURSOR")
+                op = row.operator("bim.regenerate_dimensions", icon="FILE_REFRESH", text="Regenerate")
+                op.active_only = True
+
     @classmethod
     def draw_type_selection_interface(cls):
         # shared by both sidebar and header