* fix(#6611): make regeneration transaction canonical * fix(#6611): close cross-provider regeneration blockers * fix(#6611): harden regeneration transaction boundaries * fix(#6611): bind canonical context and fork lineage * fix(#6611): restore active turn token stamping * test(#6611): make regeneration regressions CI portable * test(#6611): preserve the tracked regeneration error fixture * fix(#6611): preserve extracted session harness contracts * fix(regeneration): preserve concurrent and imported turn ownership (#6611) * fix(regeneration): honor imported turn ownership safely (#6611) * test(regeneration): cover both session lock outcomes (#6611) * test(regeneration): clear unused transaction fixtures (#6611) * fix(#6611): consume public active-turn marker * ci: re-trigger (Playwright install hung ~2.5h on GH runners, warm-cache retry) --------- Co-authored-by: nesquena-hermes <nesquena+hermes@gmail.com> Co-authored-by: n <a@n>