PR https://github.com/BigscreenVR/spt-bs-core/pull/241 head1143a6dccf177cee46ca387f2be0637ee4bd324a; W2 published. Doyle field accepted7/7 and independent gate46+53+25/clippy0/trace938. Local127/127, docs0, poolreleased0. Hertz FINAL DELIVERY.json SHA978dc9a8bff2ace22837037ed3606d5fd678d862c45c2f5503fabace20b79a36: teardown proven, zero fixture survivors, resident/firewall unchanged, remote launcher exitnull. Candidate a4cc7798625c93f9512be464bba72ac48376c48871cba4552abf98c103e75c1a dirty-source attribution retained. Issue318 handoff comment5769818921. W3 stacked from1143 by Doyle; rebase on W2 landing.