Complete Wipeout host model coverage

Maps the placement, display and clip-boundary fields with rectangular and
polygonal clip validation. staged_python_wipeout_lifecycle_over_real_ipc
passes the full gate including DWG and DXF reopen with re-edit.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

crates/ocs_plugin_api/build.rs

@@ -792,6 +792,7 @@ fn generate_entity_coverage(out_dir: &Path, registry: &TypeRegistry) {
                     | ("Mesh", _)
                     | ("Helix", _)
                     | ("RasterImage", _)
+                    | ("Wipeout", _)
                     | (
                         "MLine",
                         "flags"