Dispatch registry sync with plugin name (#16)

Use hosted runners for releases (#15)

Make platform plugin a provider-neutral intent layer (#14)

* Design platform intent plugin scope

* Resolve platform intent review findings

* Lock platform intent implementation scope

* Upgrade Workflow and serve embedded manifest

* Add platform module service behavior

* Add platform step intent outputs

* Share functional outputs with typed steps

* Document and harden platform plugin release

* Fix platform plugin verification artifacts

* Address platform plugin review findings

* Close platform plugin review gaps

* Close platform plugin review gaps

* Address plugin review comments

ci: update release wfctl gate (#13)