Stages FW0-FW6: walk oracle fixtures -> pure-CPU RetailFrameWalk/PViewSet
-> order-preserving submitter -> static cutover with the perf stop-rule
-> entity/particle/dynamics cutover deleting the patch apparatus ->
retail camera envelope -> closeout. The plan carries the recon-verified
seam map (frame chain, replace-vs-reuse split in the dispatcher, the
complete visibility-consumer list, the streaming atomicity facts, exact
patch-apparatus sites) and the binding rules (fail loud, transition
checklist, no dual path). Campaign renamed W->FW: the roadmap already
owns Phase W (UCG).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Retail owns every frame decision (rooting, PView, cone gating, landscape
walk, buildings, stage interleave, depth semantics, degrade, particles,
camera incl. zoom envelope); modern code owns only pixel-neutral GPU
mechanics. Replaces the ~4.7K-line accumulated visibility layer with the
ported walk; keeps the WB-derived asset pipeline. Gated by a cdb walk
oracle, a standing transition checklist, and an early dense-town perf
checkpoint. Staged W0-W6 with no long-lived dual path.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
