perf(streaming): quiesce retired generations and budget teardown

Publish the retail blocking-for-cells edge before deferred recenter work, freeze old-world presentation/simulation/audio, and advance full-window retirement from exact metered entity and owner cursors. This removes synchronous portal teardown without allowing retained owners to remain observable.

docs/plans/2026-04-11-roadmap.md

@@ -1605,13 +1605,16 @@ port in any phase — no separate listing here.
 > and dense-Arwic physical routes passed; third-visit cache residence was
 > non-growing and no checkpoint retained staged or retiring bytes. [Residency
 > report](../research/2026-07-24-slice-d-unified-residency-report.md). Slice E
-> cost-budgeted streaming/retirement is active. E2 has replaced the flat
+> cost-budgeted streaming/retirement is active. E2 replaced the flat
 > deferred list, count-only throttle, priority hunt, and unload bypass with one
 > typed-meter scheduler over explicit stable destination/control/unload/Near/
 > Far queues; production prices worker results before adoption and lifecycle
-> artifacts expose exact backlog/retained-byte facts. E3 next adds immediate
-> old-generation quiesce and cursored retirement. F/G and J retain their
-> explicit approval gates.
+> artifacts expose exact backlog/retained-byte facts. E3 now makes the old
+> generation unavailable at the hard reveal edge and freezes its world
+> simulation/audio while full-window and shared-origin teardown advance through
+> metered resident, entity, and owner-stage cursors with exact retry receipts.
+> E4 cursor-budgets publication next. F/G and J retain their explicit approval
+> gates.
 
 **Spec:** `docs/superpowers/specs/2026-07-05-modern-pipeline-design.md` (the
 umbrella design — read it first). **Goal:** smoothness first (no frame over

docs/plans/2026-05-12-milestones.md

@@ -93,10 +93,12 @@ The separately authorized modern-runtime performance program has completed
 Slices A–D: corrected measurement, prepared-package bake/dedup, package-only
 production streaming, and typed unified residency. Its physical capped,
 uncapped, and dense connected gates pass without a visual-quality change.
-Slice E0–E2 now define and enforce typed completion admission through explicit
-stable priority queues; E3 adds immediate old-generation quiesce and cursored
-retirement next. Slices F/G remain behind their explicit ECS approval gate,
-and Slice J remains behind its gameplay-owner approval gate.
+Slice E0–E3 now define and enforce typed completion admission through explicit
+stable priority queues, publish an immediate generation-scoped old-world
+quiesce at login/portal boundaries, and advance full-window/recenter teardown
+through exact metered retirement cursors. E4 next makes publication itself
+cursor-budgeted. Slices F/G remain behind their explicit ECS approval gate, and
+Slice J remains behind its gameplay-owner approval gate.
 
 Slice 1's 18-cell favorite-spell overflow bar is user-accepted. Slice 2's
 status hand selected-object availability and existing

docs/plans/2026-07-24-modern-runtime-architecture.md

@@ -2,7 +2,7 @@
 
 **Date:** 2026-07-24
 
-**Status:** Slices A–D complete. Slice E is active (E0/E1 complete).
+**Status:** Slices A–D complete. Slice E is active (E0–E3 complete).
 
 **Scope:** Reconcile and sequence the existing Modern Pipeline (`MP`) and
 Linux/headless (`LH`) tracks using the 2026-07-24 connected performance audit.

docs/plans/2026-07-24-modern-runtime-slice-e-cost-budgeted-streaming.md

@@ -1,6 +1,6 @@
 # Modern Runtime Slice E — Cost-budgeted streaming and retirement
 
-**Status:** active — E0/E1/E2 complete; E3 quiesce and budgeted retirement next
+**Status:** active — E0/E1/E2/E3 complete; E4 cursor-budgeted publication next
 **Program:** `docs/plans/2026-07-24-modern-runtime-architecture.md`
 **Baseline:** Slice D closeout commit `66690805`
 **Behavior contract:** no visual-quality or retail-behavior reduction
@@ -288,6 +288,35 @@ E6; the active desktop was RDP and is not valid performance evidence.
 - Prove no old generation ticks, emits, collides, targets, or renders while its
   retained memory converges.
 
+**Complete 2026-07-24.** `WorldGenerationQuiescence` now publishes the hard
+login/portal edge through one generation-scoped availability state owned by
+`WorldRevealCoordinator`. The edge withdraws world drawing, picking/radar
+spatial queries, target selection, object/static animation, PhysicsScript time,
+particle/effect progression, liveness, spatial reconciliation, and owner-tagged
+3-D audio while network/event/command, portal presentation, UI, streaming, and
+destination readiness continue. A superseding reveal remains continuously
+quiescent and only its exact generation can reopen the world; canonical live
+records and readiness state remain retained, so the mechanism does not
+synthesize Hidden/UnHide or rebuild server identity.
+
+Full-window and shared-origin retirement are now retained frame transactions.
+Generation invalidation, worker-inbox clearing, accepted-payload release,
+region clearing, stable resident capture, and landblock detachment all resume
+from exact cursors through the frame's single `StreamingWorkMeter`.
+`LandblockRetirementCoordinator` preserves stable FIFO order and advances one
+entity or one owner stage per reservation across scripts, classifications,
+lighting, translucency, plugin projection, terrain, physics, cell visibility,
+building registries, and environment cells. Failures retry the exact unfinished
+entity/stage without replaying committed work. A landblock detach remains one
+named indivisible spatial boundary; its complete entity count is charged before
+the operation.
+
+Validation: 51 focused reveal/quiescence/retirement tests passed; the complete
+App suite passed 3,666 / 3 skipped; the complete solution passed 8,148 / 5
+skipped; Release solution build green. The physical connected performance and
+visual gate remains deferred to E6 because the active desktop is RDP and is not
+valid GPU/FPS evidence.
+
 ### E4 — Cursor-budgeted publication
 
 - Move stable ordered arrays/cost facts into retained receipts.