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 <noreply@anthropic.com>

crates/ocs_plugin_api/src/entity_coverage.rs

@@ -1958,7 +1958,7 @@ pub fn validate_entity_mutation(
             if old.is_mpolygon != new.is_mpolygon
                 || old.mpolygon_hatch_color != new.mpolygon_hatch_color
                 || old.mpolygon_x_direction != new.mpolygon_x_direction
-                || old.mpolygon_boundary_handle_count != new.mpolygon_boundary_handle_count
+                || old.mpolygon_invalid_loops != new.mpolygon_invalid_loops
             {
                 return Err("Hatch MPOLYGON fields are unmapped and read-only".into());
             }