Stage 4c of the local-area H5 refactor introduces persisted worker bootstrap artifacts. The goal is to materialize deterministic worker setup facts once per run without requiring workers to consume them yet.\n\nExpected scope:\n- Add a build-output bootstrap module with manifest and structural artifact schemas.\n- Persist run-scoped regional and national bootstrap artifacts on the pipeline volume.\n- Keep current worker execution paths unchanged until the worker-session PR.\n- Add focused unit coverage for manifest persistence, entity graph round trips, and coordinator wiring.
Stage 4c of the local-area H5 refactor introduces persisted worker bootstrap artifacts. The goal is to materialize deterministic worker setup facts once per run without requiring workers to consume them yet.\n\nExpected scope:\n- Add a build-output bootstrap module with manifest and structural artifact schemas.\n- Persist run-scoped regional and national bootstrap artifacts on the pipeline volume.\n- Keep current worker execution paths unchanged until the worker-session PR.\n- Add focused unit coverage for manifest persistence, entity graph round trips, and coordinator wiring.