build(plugin): bundle verified native runtime artifacts (#797)

* build(plugin): assemble native payloads for package builds

* build(plugin): preserve native dependency notices

* fix(ci): prepare native notices before container build

* test(ci): account for reusable native build jobs

* test(ci): avoid stale Windows synchronous subprocess timers

* fix(plugin): derive native copies from the package manifest

* ci: share native artifacts across pull request checks

* test: update reusable workflow contract

* ci: simplify container release concurrency and authorization