chore: bump codec d28fd71, kernel a03e4f0, graph 79bdc4b

Codec: PRs #71-#74 merged (MPOLYGON layout, multiline ATTDEF/ATTRIB DXF,
DXF MATERIAL/ACSH matrix, restorable SAT/SAB + history roots) and issues
#55 #64-#69 fixed. EntityType now boxes Surface, Extended, Table,
MultiLeader and Helix (2344 B -> 848 B per entity): construction sites
wrap in Box, the entity traits forward through Box, and the python
plugin generator converts with into(). Kernel: PR #70 (cuboid ring
winding).

Co-Authored-By: Claude Opus 5.5 <[email protected]>

tests/section_plane_roundtrip.rs

@@ -14,7 +14,7 @@ fn add_slice(scene: &mut Scene) -> Handle {
     thickness.values = vec![XDataValue::Real(0.75)];
     common.extended_data.add_record(thickness);
 
-    scene.add_entity(EntityType::Extended(ExtendedEntity {
+    scene.add_entity(EntityType::Extended(Box::new(ExtendedEntity {
         common,
         data: ExtendedEntityData::SectionObject(SectionObjectData {
             state: 1,
@@ -29,7 +29,7 @@ fn add_slice(scene: &mut Scene) -> Handle {
             back_line_vertices: Vec::new(),
             settings_handle: Handle::NULL,
         }),
-    }))
+    })))
 }
 
 fn assert_section_graph(document: &codec::CadDocument, extension: &str) {