Add registry-backed module package releases

docs/REPOSITORY_STRUCTURE.md

@@ -76,6 +76,13 @@ one place. If a deployment profile later needs pinned SHAs for every repository,
 generate that lock as a release artifact instead of making day-to-day
 development depend on submodule updates.
 
+Module release tags also publish wheels and WebUI tarballs to the organization
+PyPI/npm registries. The meta release resolves exact versions into a hash-bound
+package lock before producing the signed OCI runtime. See
+`docs/PACKAGE_REGISTRY_RELEASES.md`. Git tags remain source provenance; package
+registries are reusable artifact transport; the signed runtime manifest and
+digest-pinned images remain production authority.
+
 ## Docker Placement
 
 Whole-product Docker and production-like deployment composition belongs in