* artifacts: reference module members from navigation by futhr

* presentation: admit portable artifact blocks by Tobias Bohwalli

* ci: isolate runtime caches and refresh pinned actions by Tobias Bohwalli

* presentation: enforce portable artifact admission before export by Tobias Bohwalli

* deps: update Decimal past security advisory by Tobias Bohwalli

* extraction: read module documentation concurrently by futhr

* artifacts: write compact canonical artifacts encoded once by futhr

* json: encode canonical json in a single pass by futhr