docs(runtime): close simulation ownership

AGENTS.md

@@ -310,7 +310,16 @@ App resolves immutable DAT shape data and projects committed frames. Runtime
 tests pass 317/317, App tests pass 3,718/3 skips, 47 focused Core projectile
 tests pass, the complete Release suite passes 8,591/5 skips, and the exact
 arrow/bolt/spell, lifecycle/reconnect, and canonical nine-stop gates pass with
-graceful exits and zero failures. J5.7 cleanup and closeout is active.
+graceful exits and zero failures. J5.7 and J5 are complete at `cdee7a4b`:
+Runtime owns accepted remote-body/vector activation, final simulation
+retirement, terminal physics/shadow/workset cleanup, and one combined
+entity/object/gameplay/physics ownership ledger. The Runtime-only fixture
+drives movement, use, combat, casting, and projectiles without loading
+presentation/backend assemblies. Runtime tests pass 323/323, App tests pass
+3,717/3 skips, the complete Release suite passes 8,596/5 skips, and the exact
+lifecycle/reconnect plus canonical nine-stop gates match binary/source,
+converge every backlog, and exit gracefully with zero failures. J6
+world/portal/environment and projection-handshake ownership is active.
 J0's rollback is
 `git revert b632672e5ccabfb44c551e08f1c411ab2669c44a`.
 J1's rollback is
@@ -350,6 +359,8 @@ J5.5's rollback is
 `git revert 7e6033d0adcd0b572c20e89dd275746fb442d52f`.
 J5.6's rollback is
 `git revert 2aee33569f0268d7bc0f4f52437dfa0b405432a4`.
+J5.7's rollback is
+`git revert cdee7a4b49addb5e1500753f6a885f7c899bd0f0`.
 Slice H's retained UI/frame, bounded-light, and pooled/borrowed/direct network
 work is complete; the exact seven-checkpoint connected lifecycle/reconnect gate
 passes. Slice I is closed in
@@ -371,7 +382,8 @@ closeout is
 closeout is
 `docs/research/2026-07-26-slice-j5-5-physics-remote-ownership.md`; J5.6
 closeout is
-`docs/research/2026-07-26-slice-j5-6-projectile-ownership.md`. The exact G4
+`docs/research/2026-07-26-slice-j5-6-projectile-ownership.md`; J5.7 closeout is
+`docs/research/2026-07-26-slice-j5-7-simulation-ownership-closeout.md`. The exact G4
 visual rollback
 is `git revert ef1d263337997bb030eadb7b8e71d73dc659907a`; do not revert G3 or
 the portal-warmup corrections. Evidence:

CLAUDE.md

@@ -308,7 +308,16 @@ App resolves immutable DAT shape data and projects committed frames. Runtime
 tests pass 317/317, App tests pass 3,718/3 skips, 47 focused Core projectile
 tests pass, the complete Release suite passes 8,591/5 skips, and the exact
 arrow/bolt/spell, lifecycle/reconnect, and canonical nine-stop gates pass with
-graceful exits and zero failures. J5.7 cleanup and closeout is active.
+graceful exits and zero failures. J5.7 and J5 are complete at `cdee7a4b`:
+Runtime owns accepted remote-body/vector activation, final simulation
+retirement, terminal physics/shadow/workset cleanup, and one combined
+entity/object/gameplay/physics ownership ledger. The Runtime-only fixture
+drives movement, use, combat, casting, and projectiles without loading
+presentation/backend assemblies. Runtime tests pass 323/323, App tests pass
+3,717/3 skips, the complete Release suite passes 8,596/5 skips, and the exact
+lifecycle/reconnect plus canonical nine-stop gates match binary/source,
+converge every backlog, and exit gracefully with zero failures. J6
+world/portal/environment and projection-handshake ownership is active.
 J0's rollback is
 `git revert b632672e5ccabfb44c551e08f1c411ab2669c44a`.
 J1's rollback is
@@ -348,6 +357,8 @@ J5.5's rollback is
 `git revert 7e6033d0adcd0b572c20e89dd275746fb442d52f`.
 J5.6's rollback is
 `git revert 2aee33569f0268d7bc0f4f52437dfa0b405432a4`.
+J5.7's rollback is
+`git revert cdee7a4b49addb5e1500753f6a885f7c899bd0f0`.
 Slice H's retained UI/frame, bounded-light, and pooled/borrowed/direct network
 work is complete; the exact seven-checkpoint connected lifecycle/reconnect gate
 passes. Slice I is closed in
@@ -369,7 +380,8 @@ closeout is
 closeout is
 `docs/research/2026-07-26-slice-j5-5-physics-remote-ownership.md`; J5.6
 closeout is
-`docs/research/2026-07-26-slice-j5-6-projectile-ownership.md`. The exact G4
+`docs/research/2026-07-26-slice-j5-6-projectile-ownership.md`; J5.7 closeout is
+`docs/research/2026-07-26-slice-j5-7-simulation-ownership-closeout.md`. The exact G4
 visual rollback
 is `git revert ef1d263337997bb030eadb7b8e71d73dc659907a`; do not revert G3 or
 the portal-warmup corrections. Evidence:

docs/README.md

@@ -14,7 +14,7 @@ banner cannot silently override the current program state.
   [`plans/2026-07-23-world-interaction-completion.md`](plans/2026-07-23-world-interaction-completion.md).
   The eight-slice `GameWindow` decomposition and its connected visual matrix
   are complete.
-- **Current active engineering program:** Slices A–I, J0–J4, and J5.1–J5.6 of
+- **Current active engineering program:** Slices A–I and J0–J5 of
   [`plans/2026-07-24-modern-runtime-architecture.md`](plans/2026-07-24-modern-runtime-architecture.md)
   are complete. Production uses prepared world/collision packages, typed
   residence, retained render-scene/delta submission, bounded frame owners, and
@@ -24,24 +24,27 @@ banner cannot silently override the current program state.
   App materialized projections and retained widgets borrow exact Runtime
   identity and action owners. Runtime also owns the sole per-session physics,
   collision, body/host, remote/projectile simulation, and cell-commit graph.
-  J5.7 ownership cleanup and closeout is active in
+  J5 closed at `cdee7a4b` with one combined simulation ledger, a
-  [`plans/2026-07-26-modern-runtime-slice-j5.md`](plans/2026-07-26-modern-runtime-slice-j5.md).
+  Runtime-only movement/use/combat/cast/projectile host, 8,596 complete
+  Release tests / 5 skips, and exact-binary lifecycle plus nine-stop gates.
+  J6 world/portal/environment and projection-handshake ownership is active in
+  [`plans/2026-07-25-modern-runtime-slice-j.md`](plans/2026-07-25-modern-runtime-slice-j.md).
 - **Completed gates:** R6 locomotion/collision/projectile/teleport/radar and
   the final two-client portal-out/materialization observer comparison (`#218`).
 - **Separate visual verification:** the shared-alpha lifestone/particle result
   in `#225`; its connected resource-lifetime and performance routes pass.
 - **Carried behavior debt:** `#153` (far teleport onto an unstreamed edge),
   `#116` (two narrowed slide-response cases), and divergence rows TS-50/TS-51.
-- **Active engineering track:** complete Slice J's coherent Runtime lifetime
+- **Active engineering track:** complete Slice J's world handshake,
-  groups, then build the approved Linux/headless multi-session host in Slice K.
+  composition root, and no-window closeout, then build the approved
-  J5.6's exact rollback is
+  Linux/headless multi-session host in Slice K. J5.7's exact rollback is
-  `git revert 2aee33569f0268d7bc0f4f52437dfa0b405432a4`.
+  `git revert cdee7a4b49addb5e1500753f6a885f7c899bd0f0`.
 - **Divergence audit:** 178 active rows — IA 17, AD 37, AP 85, TS 34,
   and UN 5 — plus the retained retired TS-37 history note.
-- **Latest automated baseline:** Release build succeeds; 8,591 tests pass and
+- **Latest automated baseline:** Release build succeeds; 8,596 tests pass and
-  five are intentionally skipped. The exact J5.6 arrow/bolt/spell,
+  five are intentionally skipped. The exact J5.7 lifecycle/reconnect and
-  lifecycle/reconnect, and canonical nine-stop gates complete with graceful
+  canonical nine-stop gates match embedded binary/source commit, converge
-  zero-code exits and zero failures.
+  every backlog, and complete with graceful zero-code exits and zero failures.
 
 ## Sources of truth
 

docs/architecture/acdream-architecture.md

@@ -238,7 +238,7 @@ src/
       RuntimeOrdinaryPhysicsUpdater.cs -> presentation-free object simulation
       RuntimeProjectile.cs -> canonical projectile component/prediction owner
       RuntimeProjectilePhysicsUpdater.cs -> presentation-free projectile simulation
-    -> J3–J4 and J5.1–J5.6 complete; J5.7 cleanup/closeout active
+    -> J3–J5 complete; J6 world/portal/environment handshake active
     -> may reference Core, Core.Net, Content, and Plugin.Abstractions only
     -> must never reference App, UI, Silk.NET, OpenAL, Arch, or ImGui
   

docs/architecture/code-structure.md

@@ -474,12 +474,12 @@ useful ordering seam, but its ownership status is **partial**.
 | Inbound/object-frame order | **Complete App orchestration** | `UpdateFrameOrchestrator` owns the complete typed host phase graph; `RetailInboundEventDispatcher`, `RetailLiveFrameCoordinator`, `LiveObjectFrameController`, `LiveSpatialPresentationReconciler`, streaming/input/teleport/player-mode/camera owners preserve the accepted order. `GameWindow.OnUpdate` is one profiler-scoped handoff (`e91f3102`). |
 | World reveal | **Complete** | `WorldRevealCoordinator` owns login/portal readiness, generation quiescence, and the exact streaming destination reservation. Login auto-entry and portal completion close only their active generation; stale completion cannot clear its replacement. Delayed portals retain the authored tunnel and centered retail wait notice rather than force-revealing incomplete content. Quiesced destination projections may become spatially resident for renderer preparation while all availability-gated gameplay consumers stay closed. |
 | Retained gameplay UI | **Mostly complete feature ownership** | `RetailUiRuntime` and focused panel/controllers own layout and behavior. `GameWindow.OnLoad` still performs substantial service composition, which is allowed until the final composition cleanup. |
-| Action/combat/magic/movement | **J5.1–J5.4 complete** | Runtime `RuntimeActionState` owns the exact selection, temporary target mode, interaction transactions, combat attack/target/mode, and spell-cast intent children. Interaction owns use/appraisal/pickup identity, ordered FIFO, and exact post-arrival token while borrowing J4's sole busy gate. `RuntimeLocalPlayerMovementState` owns the exact local controller, construction seam, autorun latch, typed view, and outbound MTS/jump/AP cadence. Retained bars, physical input, world/content queries, transport, lighting, toasts, drag/drop, effects, and animation remain App adapters/presentation. No parallel App owner remains (`b298f99f`, `f5f7b417`, `20df9d15`, `aa3f4a60`). |
+| Action/combat/magic/movement | **J5 complete** | Runtime `RuntimeActionState` owns the exact selection, temporary target mode, interaction transactions, combat attack/target/mode, and spell-cast intent children. Interaction owns use/appraisal/pickup identity, ordered FIFO, and exact post-arrival token while borrowing J4's sole busy gate. `RuntimeLocalPlayerMovementState` owns the exact local controller, construction seam, autorun latch, typed view, and outbound MTS/jump/AP cadence. Retained bars, physical input, world/content queries, transport, lighting, toasts, drag/drop, effects, and animation remain App adapters/presentation. One combined Runtime ledger spans entity/object, gameplay, physics, remote, and projectile ownership (`b298f99f`, `f5f7b417`, `20df9d15`, `aa3f4a60`, `cdee7a4b`). |
 | Physics/remote simulation | **J5.5 complete** | `RuntimePhysicsState` owns one per-session engine, production cache/cell graph, transition scratch, shadow registry, typed collision admissions, canonical bodies/hosts/remotes, keyed ordinary/remote worksets, simulation, and cell commits. App streaming supplies immutable prepared collision; animation/shape adapters supply graphical inputs and project committed snapshots only (`7e6033d0`). |
 | Projectile simulation | **J5.6 complete** | `RuntimeEntityRecord`/`RuntimePhysicsState` own the canonical projectile component, exact-key workset, prediction/correction state, unchanged retail quantum/integration/sweep/collision loop, and cell commits. App resolves immutable Setup/DAT shape input and projects committed render, shadow, and effect-pose results only (`2aee3356`). |
 | Landblock presentation | **Complete** | `LandblockBuildFactory` owns the captured-origin DAT transaction; concrete render/physics/DAT-static publishers and `LandblockPresentationPipeline` own typed-meter publication and exact retryable retirement. `StreamingController` owns stable destination/control/unload/Near/Far queues and destination reservation. CPU mesh-cache restaging requires an exact live owner. `StreamingOriginRecenterCoordinator` serializes old-window retirement with teleport/session origin lifetimes. `GameWindow` retains construction and one pipeline field only (`c79d0a49`, closeout `4a205a3e`; Slice E closeout `91e82c3c`). |
 | Render-frame orchestration | **Complete** | `RenderFrameOrchestrator` owns the GPU-flight, resource, world/PView/shared-alpha, private-presentation, diagnostics, screenshot, and recovery graph. `GameWindow.OnRender` takes one logical window-size snapshot and performs one immutable handoff (`9d7df1bf`). |
-| Unified `GameEntity` | **Slice J active at J5.7** | Canonical identity, retained-object lifetime, direct views, ordered entity/object deltas, J4 gameplay state, J5 action/combat/magic/movement/physics/remote/projectile simulation share failure-safe Runtime owners while exact graphical sidecars stay in App. J5.7 removes remaining temporary seams and proves no-window parity before J6–J7 add world handshakes and one Runtime composition root. |
+| Unified `GameEntity` | **Slice J active at J6** | Canonical identity, retained-object lifetime, direct views, ordered entity/object deltas, J4 gameplay state, and the complete J5 action/combat/magic/movement/physics/remote/projectile simulation graph share failure-safe Runtime owners while exact graphical sidecars stay in App. J5 closeout proves Runtime-only parity and one terminal ownership ledger. J6 now separates authoritative world/portal/environment state from presentation readiness before J7 composes one `GameRuntime` root. |
 
 ### 4.3 Revised extraction sequence
 

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

@@ -1,6 +1,6 @@
 # acdream — strategic roadmap
 
-**Status:** Living document. Updated 2026-07-26. **M3 landed; M4 is active.** M3's retail casting/UI, R6 locomotion/collision/projectile/teleport/radar rebaseline, deterministic fresh-login/portal world lifecycle, and final two-client portal observer flow are user-gated. All eight slices of the behavior-preserving ownership campaign in [`docs/architecture/code-structure.md`](../architecture/code-structure.md), their automated closeout, and the user's connected visual matrix are complete. Modern Runtime J3 canonical entity/object lifetime and J4 gameplay-state ownership are closed at `89e6b207`; J5.1 canonical selection/combat/target-mode ownership is closed at `b298f99f`, J5.2 interaction transactions at `f5f7b417`, J5.3 combat/magic intent at `20df9d15`, J5.4 local movement/outbound cadence at `aa3f4a60`, J5.5 per-session physics/remote simulation at `7e6033d0`, and J5.6 projectile simulation at `2aee3356`. J5.7 cleanup and closeout is active. Issue #225's lifestone/particle alpha comparison remains a separate rendering visual gate.
+**Status:** Living document. Updated 2026-07-26. **M3 landed; M4 is active.** M3's retail casting/UI, R6 locomotion/collision/projectile/teleport/radar rebaseline, deterministic fresh-login/portal world lifecycle, and final two-client portal observer flow are user-gated. All eight slices of the behavior-preserving ownership campaign in [`docs/architecture/code-structure.md`](../architecture/code-structure.md), their automated closeout, and the user's connected visual matrix are complete. Modern Runtime J3 canonical entity/object lifetime and J4 gameplay-state ownership are closed at `89e6b207`; J5.1 canonical selection/combat/target-mode ownership is closed at `b298f99f`, J5.2 interaction transactions at `f5f7b417`, J5.3 combat/magic intent at `20df9d15`, J5.4 local movement/outbound cadence at `aa3f4a60`, J5.5 per-session physics/remote simulation at `7e6033d0`, J5.6 projectile simulation at `2aee3356`, and J5.7 combined simulation closeout at `cdee7a4b`. J6 world/portal/environment and projection-handshake ownership is active. Issue #225's lifestone/particle alpha comparison remains a separate rendering visual gate.
 **Purpose:** One source of truth for where the project is and where it's going. Every observed defect or missing feature has a named phase that owns it; when something looks wrong in-game, look here to find the phase that'll address it. Implementation details live in per-phase specs under `docs/superpowers/specs/`, not in this file.
 
 ---
@@ -1771,7 +1771,13 @@ port in any phase — no separate listing here.
 > Its 317 Runtime tests, 3,718 App tests / 3 skips, 47 focused Core projectile
 > tests, 8,591-test / 5-skip complete Release suite, exact arrow/bolt/spell
 > evidence, lifecycle/reconnect gate, and canonical nine-stop route pass.
-> J5.7 cleanup and closeout is active.
+> J5.7 completed at `cdee7a4b`: Runtime owns accepted remote-body/vector
+> activation, final simulation retirement, terminal physics/shadow/workset
+> cleanup, and one combined entity/object/gameplay/physics ownership ledger.
+> Its Runtime-only movement/use/combat/cast/projectile fixture, 323 Runtime
+> tests, 3,717 App tests / 3 skips, 8,596-test / 5-skip complete Release suite,
+> exact-binary lifecycle/reconnect gate, and canonical nine-stop route pass.
+> J6 world/portal/environment and projection-handshake ownership is active.
 > The historical exact cutover
 > rollback remains
 > `git revert ef1d263337997bb030eadb7b8e71d73dc659907a`. Slice H is complete:

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

@@ -245,7 +245,14 @@ residency is `0/0/0` at every stable checkpoint and teardown converges. Slice I
   shape inputs and projects committed frames. Its 317 Runtime tests, 3,718
   App tests / 3 skips, 47 focused Core projectile tests, 8,591 full Release
   tests / 5 skips, exact arrow/bolt/spell evidence, lifecycle/reconnect route,
-  and canonical nine-stop route pass. J5.7 cleanup and closeout is active under
+  and canonical nine-stop route pass. J5.7 completed at `cdee7a4b`: one
+  Runtime simulation ledger spans entity/object, gameplay, physics, remote,
+  and projectile ownership; the Runtime-only fixture drives movement, use,
+  combat, casting, and projectiles without presentation dependencies. Its 323
+  Runtime tests, 3,717 App tests / 3 skips, 8,596 full Release tests / 5
+  skips, exact-binary lifecycle/reconnect route, and canonical nine-stop route
+  pass. J6 world/portal/environment and projection-handshake ownership is
+  active under
   [`2026-07-25-modern-runtime-slice-j.md`](2026-07-25-modern-runtime-slice-j.md).
 Slice-I closeout evidence is
 [`../research/2026-07-25-slice-i7-closeout.md`](../research/2026-07-25-slice-i7-closeout.md).

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

@@ -2,7 +2,7 @@
 
 **Date:** 2026-07-24
 
-**Status:** Slices A–I, J0–J4, and J5.1–J5.6 are complete. Flat-authoritative collision, zero-
+**Status:** Slices A–I and J0–J5 are complete. Flat-authoritative collision, zero-
 allocation resolve scratch, parsed-graph removal, connected correctness/
 lifetime acceptance, and Slice-I closeout landed 2026-07-25. Slices F–L were
 explicitly approved 2026-07-24. Slice J0–J1 established the enforced Runtime
@@ -16,11 +16,12 @@ ownership into Runtime at `011efbea`; J4.3 moved the coupled magic/player-sheet
 owner into Runtime at `d02a12ce`; J4.4 moved character settings/projections
 and the shared typed state-command seam at `dcb61efb`; J4.5 closed canonical
 gameplay-state ownership at `89e6b207`. J5 movement, physics, interaction,
-and combat ownership is active at J5.7 after canonical action state
+and combat ownership closed at `cdee7a4b` after canonical action state
 (`b298f99f`), interaction transactions (`f5f7b417`), and combat/magic intent
 (`20df9d15`), local movement/outbound cadence (`aa3f4a60`), and per-session
-physics/remote simulation (`7e6033d0`), and projectile simulation
+physics/remote simulation (`7e6033d0`), projectile simulation (`2aee3356`),
-(`2aee3356`) moved to Runtime.
+and the combined simulation ledger/Runtime-only closeout moved to Runtime.
+J6 world/portal/environment and projection-handshake ownership is active.
 
 **Scope:** Reconcile and sequence the existing Modern Pipeline (`MP`) and
 Linux/headless (`LH`) tracks using the 2026-07-24 connected performance audit.
@@ -1277,8 +1278,11 @@ gate, and canonical nine-stop route pass. J4 is complete at `89e6b207`: the
 single Runtime shortcut/spellbook/inventory owners, graphical/no-window
 command parity, failure-safe combined ledger, 8,544-test Release suite,
 exact-binary lifecycle/reconnect gate, and canonical nine-stop route pass.
-J5 movement/physics/interaction/combat ownership is the current execution
+J5 movement/physics/interaction/combat ownership is complete at `cdee7a4b`.
-point. J5.1–J5.6 are complete; J5.7 cleanup and closeout is active.
+The Runtime-only simulation fixture, combined terminal ledger, 8,596-test /
+5-skip Release suite, exact-binary lifecycle/reconnect gate, and canonical
+nine-stop route pass. J6 world/portal/environment and projection-handshake
+ownership is the current execution point.
 Evidence:
 [`../research/2026-07-25-slice-g5-production-profile.md`](../research/2026-07-25-slice-g5-production-profile.md)
 and
@@ -1300,6 +1304,8 @@ and
 and
 [`../research/2026-07-26-slice-j5-6-projectile-ownership.md`](../research/2026-07-26-slice-j5-6-projectile-ownership.md)
 and
+[`../research/2026-07-26-slice-j5-7-simulation-ownership-closeout.md`](../research/2026-07-26-slice-j5-7-simulation-ownership-closeout.md)
+and
 [`2026-07-25-modern-runtime-slice-j.md`](2026-07-25-modern-runtime-slice-j.md).
 
 The intended order is therefore:

docs/plans/2026-07-25-modern-runtime-slice-j.md

@@ -1,6 +1,6 @@
 # Modern runtime Slice J — presentation-independent runtime
 
-**Status:** J0–J4 COMPLETE; J5 ACTIVE
+**Status:** J0–J5 COMPLETE; J6 ACTIVE
 **Parent:** `2026-07-24-modern-runtime-architecture.md`, Slice J
 **Authorization:** the user approved Slices F–L, including the otherwise-frozen
 Slice J gameplay-owner moves, on 2026-07-24
@@ -277,7 +277,7 @@ J4 must borrow it rather than create another inventory model.
 
 ### J5 — movement, physics, interaction, and combat group
 
-**Active 2026-07-26.** Detailed execution begins with a source/owner inventory
+**Completed 2026-07-26.** Detailed execution began with a source/owner inventory
 and a named-retail ordering matrix. Each coherent move must preserve the
 accepted connected interaction, facing, projectile, and collision behavior.
 The executable sub-slice ledger, presentation boundary, acceptance gates, and
@@ -317,7 +317,14 @@ retail projectile simulation; App resolves immutable DAT shape data and
 projects committed frames only. Its 317 Runtime tests, 3,718 App tests / 3
 skips, 47 focused Core projectile tests, 8,591 complete Release tests / 5
 skips, exact arrow/bolt/spell evidence, lifecycle/reconnect gate, and canonical
-nine-stop route pass. J5.7 ownership cleanup and closeout is active. Evidence:
+nine-stop route pass. J5.7 completed at `cdee7a4b`: Runtime owns accepted
+remote-body/vector activation, final simulation retirement, terminal
+physics/shadow/workset cleanup, and one combined simulation ownership ledger.
+Its Runtime-only movement/use/combat/cast/projectile host proves no-window
+parity and terminal convergence after projection failure. Its 323 Runtime
+tests, 3,717 App tests / 3 skips, 8,596 complete Release tests / 5 skips,
+exact-binary lifecycle/reconnect gate, and canonical nine-stop route pass.
+Evidence:
 [`../research/2026-07-26-slice-j5-1-canonical-action-state.md`](../research/2026-07-26-slice-j5-1-canonical-action-state.md)
 and
 [`../research/2026-07-26-slice-j5-2-interaction-transactions.md`](../research/2026-07-26-slice-j5-2-interaction-transactions.md)
@@ -328,7 +335,9 @@ and
 and
 [`../research/2026-07-26-slice-j5-5-physics-remote-ownership.md`](../research/2026-07-26-slice-j5-5-physics-remote-ownership.md)
 and
-[`../research/2026-07-26-slice-j5-6-projectile-ownership.md`](../research/2026-07-26-slice-j5-6-projectile-ownership.md).
+[`../research/2026-07-26-slice-j5-6-projectile-ownership.md`](../research/2026-07-26-slice-j5-6-projectile-ownership.md)
+and
+[`../research/2026-07-26-slice-j5-7-simulation-ownership-closeout.md`](../research/2026-07-26-slice-j5-7-simulation-ownership-closeout.md).
 
 - Move presentation-free movement interpretation, authoritative/predicted
   physics state, selection identity, approach/use transactions, combat intent,
@@ -345,6 +354,8 @@ graphical feel gates remain unchanged.
 
 ### J6 — world, portal, environment, and projection handshake
 
+**Active 2026-07-26.**
+
 - Move authoritative teleport/session cell identity, world clock, weather
   state, and reveal-generation state required by gameplay.
 - Keep streaming publication, terrain/EnvCell rendering, portal tunnel,
@@ -400,3 +411,9 @@ another gameplay extraction.
 
 Each commit is independently buildable and retains an exact rollback command
 in this plan before its connected gate.
+
+J5.7 exact rollback:
+
+```text
+git revert cdee7a4b49addb5e1500753f6a885f7c899bd0f0
+```

docs/plans/2026-07-26-modern-runtime-slice-j5.md

@@ -1,6 +1,6 @@
 # Modern runtime Slice J5 — movement, physics, interaction, and combat
 
-**Status:** ACTIVE — J5.1–J5.6 complete; J5.7 next
+**Status:** COMPLETE — J5.1–J5.7 closed 2026-07-26
 **Parent:** `2026-07-25-modern-runtime-slice-j.md`, J5
 **Production base:** `2c67a2c3`
 **Authorization:** the user approved Slices F–L, including the Slice J
@@ -91,7 +91,7 @@ commands to Runtime. The camera may not write the player heading directly.
 | J5.4 local movement and outbound cadence | complete | `aa3f4a60f87f2cbebc3d8ecd5e33d779b7fb13c1`; one Runtime movement/controller/cadence owner; 303 Runtime tests, 3,716 App tests / 3 skips, 8,575 complete Release tests / 5 skips, exact-binary lifecycle/reconnect and nine-stop movement gates pass |
 | J5.5 per-session physics and remote simulation | complete | `7e6033d0adcd0b572c20e89dd275746fb442d52f`; one Runtime engine/cache/scratch/shadow/body/host/remote/workset owner; 314 Runtime tests, 3,718 App tests / 3 skips, 8,588 complete Release tests / 5 skips, exact-binary lifecycle/reconnect and nine-stop collision/movement gates pass |
 | J5.6 projectile runtime | complete | `2aee33569f0268d7bc0f4f52437dfa0b405432a4`; one Runtime projectile component/workset/simulation/correction owner; 317 Runtime tests, 3,718 App tests / 3 skips, 47 focused Core projectile tests, 8,591 complete Release tests / 5 skips, exact arrow/bolt/spell evidence, lifecycle/reconnect pass, and nine-stop route pass |
-| J5.7 combined cleanup and closeout | active | no mirrors, one ownership ledger, no-window parity, teardown, connected and visual gates |
+| J5.7 combined cleanup and closeout | complete | `cdee7a4b49addb5e1500753f6a885f7c899bd0f0`; one combined simulation ledger, Runtime-only fixture parity, exact terminal teardown, 323 Runtime tests, 3,717 App tests / 3 skips, 8,596 complete Release tests / 5 skips, exact-binary lifecycle/reconnect and nine-stop gates |
 
 ## J5.1 — canonical action state
 
@@ -431,6 +431,29 @@ Run:
 9. architecture, divergence, issue, roadmap, AGENTS/CLAUDE, and durable-memory
    reconciliation.
 
+**Completed 2026-07-26 at
+`cdee7a4b49addb5e1500753f6a885f7c899bd0f0`.**
+Runtime now owns accepted CreateObject vector installation, remote-motion
+construction/activation, canonical vector commits, final simulation-component
+retirement, terminal physics/shadow/workset cleanup, and one combined
+entity/object/physics/gameplay ownership ledger. App compatibility views and
+the duplicate remote-body initializer are deleted; graphical checkpoints
+borrow direct Runtime views. A Runtime-only fixture drives movement, use,
+combat, casting, and projectile simulation without loading App or a
+presentation/backend assembly, and injected projection failure still converges
+the complete ledger.
+
+Runtime tests pass 323/323, App tests pass 3,717/3 skips, the complete Release
+suite passes 8,596/5 skips, and the Release solution builds with zero errors.
+The exact-binary lifecycle/reconnect report
+`logs/connected-world-gate-20260726-160825/report.json` passes all seven
+checkpoints and both graceful code-zero exits. The canonical report
+`logs/connected-r6-soak-20260726-161406.report.json` matches embedded
+binary/source SHA, passes all nine destinations and movement/combat/jump
+exercises, converges every streaming backlog to zero, and exits gracefully
+with zero failures. Evidence:
+[`../research/2026-07-26-slice-j5-7-simulation-ownership-closeout.md`](../research/2026-07-26-slice-j5-7-simulation-ownership-closeout.md).
+
 ## Commit and rollback discipline
 
 Each sub-slice lands as one independently reversible production commit followed
@@ -487,6 +510,12 @@ J5.6 rollback:
 git revert 2aee33569f0268d7bc0f4f52437dfa0b405432a4
 ```
 
+J5.7 rollback:
+
+```text
+git revert cdee7a4b49addb5e1500753f6a885f7c899bd0f0
+```
+
 ## Acceptance
 
 J5 is complete only when:

docs/research/2026-07-26-slice-j5-7-simulation-ownership-closeout.md

@@ -0,0 +1,156 @@
+# Slice J5.7 — simulation-ownership closeout
+
+Date: 2026-07-26
+Scope: ownership and teardown cleanup only; no retail algorithm, packet,
+timing, collision policy, gameplay outcome, or graphical presentation change
+
+## Objective
+
+Close the temporary seams left by J5.1–J5.6 so one Runtime lifetime owns the
+complete presentation-independent simulation graph:
+
+- canonical entity/object identity and accepted wire state;
+- selection, interaction, combat, magic, and local movement intent;
+- per-session physics, remote motion, projectiles, shadows, and spatial
+  worksets;
+- reset, projection withdrawal, and terminal retirement.
+
+App remains the graphical host. It supplies physical input, immutable
+DAT/content inputs, transport and projection acknowledgements, then presents
+committed Runtime state through animation, meshes, particles, audio, cameras,
+retained UI, markers, and diagnostics.
+
+## Named-retail invariant
+
+J5.7 preserves the already-ported retail control flow. The one relocated
+initialization detail follows:
+
+- `CPhysicsObj::set_description` at `0x00514F40`
+
+CreateObject velocity and angular velocity are installed once when Runtime
+constructs the canonical remote body. Later authoritative Vector updates flow
+through the existing retail timestamp gate and canonical record. App no longer
+constructs a second body or repeats the accepted CreateObject vector install.
+
+The projectile, movement, collision, interaction, combat, and spell algorithms
+remain those documented by the preceding J5 evidence notes. No constant,
+branch, packet order, server-authority boundary, or visible effect changed.
+
+## Closed ownership gaps
+
+Production commit
+`cdee7a4b49addb5e1500753f6a885f7c899bd0f0`:
+
+- removes the App remote-motion/physics-host/canonical-runtime/cell/placement
+  compatibility aliases after production consumers moved to Runtime types;
+- deletes `LiveEntityRemoteMotionRuntimeView<T>` and the App
+  `RemotePhysicsBodyInitializer`;
+- makes `LiveEntityNetworkUpdateController` borrow the canonical
+  `LiveEntityRuntime` and delegate body, remote-motion, vector, wakeup, and
+  activation work to `RuntimePhysicsState`;
+- makes Runtime install accepted CreateObject velocity and angular velocity
+  exactly once at canonical body construction;
+- makes `RuntimeEntityObjectLifetime.CompleteProjectionRetirement` own final
+  simulation-component retirement after the App projection acknowledges
+  withdrawal;
+- removes App-side mutation of canonical remote/body/host/placement component
+  slots;
+- makes current-runtime checkpoints borrow `IRuntimeEntityView` and inventory
+  views rather than reconstructing state from App projections or
+  `ClientObjectTable`;
+- adds terminal clearing for `PhysicsEngine`, `ShadowObjectRegistry`, spatial
+  worksets, collision residence, bodies, hosts, remotes, and projectiles;
+- adds `RuntimeSimulationOwnershipSnapshot`, one terminal ledger spanning
+  entity/object, physics, and gameplay ownership;
+- adds a Runtime-only fixture host that drives movement, use, combat, casting,
+  and projectile simulation without loading App, UI, Silk.NET, OpenAL, ImGui,
+  Arch, or a native window.
+
+`ILocalPlayerMotionSource` remains as a presentation-facing source name for
+the animation projection seam. It does not construct, store, or mutate a
+second movement owner; graphical animation borrows the exact
+`RuntimeLocalPlayerMovementState`.
+
+## Failure and parity matrix
+
+The closeout fixtures cover every J5.7 boundary:
+
+| Boundary | Evidence |
+|---|---|
+| construction | per-instance entity/object/physics/gameplay owners; canonical remote-body acquisition; no presentation/backend assembly load |
+| subscription | entity, communication, gameplay, and projection observers isolate failures and detach exactly |
+| command | graphical and direct movement, use, combat, and magic commands reach the same exact owners |
+| projection acknowledgement | vector, rebucket, projectile, and terminal projection failures preserve canonical committed state and allow retry/convergence |
+| reset | interaction, action, movement, session, entity/object, and physics reset paths converge without replay |
+| disposal | combined simulation ledger, physics residence, shadows, worksets, objects, and subscriptions reach exact zero |
+
+Normalized graphical/direct parity is pinned by:
+
+- `CurrentGameRuntimeAdapterTests.GraphicalAndDirectCombatMagicCommands_ReachTheExactSameOwners`;
+- `CurrentGameRuntimeAdapterTests.DirectAndGraphicalHosts_ProduceIdenticalEntityObjectTrace`;
+- `RuntimeLocalPlayerMovementStateTests.GraphicalAndDirectCommandsMutateOneAutorunLatch`;
+- `RuntimeSimulationFixtureHostTests.RuntimeOnlyHostDrivesCompleteJ5SimulationWithoutPresentation`.
+
+The projection-failure fixture additionally proves that a failed graphical
+acknowledgement cannot strand or roll back canonical simulation state:
+
+- `RuntimeSimulationFixtureHostTests.ProjectionAcknowledgementFailureStillAllowsTerminalConvergence`.
+
+## Automated acceptance
+
+On the production commit:
+
+- focused App ownership/entity/projectile/hydration suite: 198 passed;
+- Runtime tests: 323 passed;
+- App tests: 3,717 passed / 3 skipped;
+- complete Release solution: 8,596 passed / 5 skipped;
+- Release solution build: zero errors; 17 pre-existing warnings;
+- source/dependency guards pass;
+- `git diff --check` is clean.
+
+The combined Runtime fixture loads no presentation or backend assembly and
+its terminal `RuntimeSimulationOwnershipSnapshot.IsConverged` is true after
+normal operation and injected projection failure.
+
+## Connected acceptance
+
+Both accepted connected gates used the exact rebuilt executable and source
+commit `cdee7a4b49addb5e1500753f6a885f7c899bd0f0`.
+
+- Lifecycle/reconnect:
+  `logs/connected-world-gate-20260726-160825/report.json`
+  passed all seven fresh-login, outdoor, dungeon, revisit, graceful-disconnect,
+  and uncapped fresh-process reconnect checkpoints. Both processes exited
+  gracefully with code zero, with zero failures and only the 25 expected
+  world-edge empty-landblock misses.
+- Canonical nine-stop route:
+  `logs/connected-r6-soak-20260726-161406.report.json`
+  reported `binaryMatchesSource = true`, materialized all nine destinations,
+  passed forward, jump, combat, and authoritative movement-truth exercises at
+  Caul, Holtburg, and the Caul return, and exited gracefully with code zero
+  and zero failures. Every checkpoint converged with zero pending publication,
+  retirement, worker-completion, or destination backlog.
+
+The earlier post-commit route
+`logs/connected-r6-soak-20260726-155912.report.json` was behaviorally green
+but is deliberately rejected as exact-binary evidence because its embedded
+binary SHA preceded the source commit. It remains in the audit trail. The
+solution was rebuilt and both accepted gates were then rerun.
+
+The user-accepted connected behavior carried through J5 includes local
+movement and target-facing, near/far object use, combat and spell bars,
+projectile presentation, collision, repeated portal/recall, and reconnect.
+J5.7 changes only ownership seams and the exact-binary routes exercise those
+same owners after cleanup.
+
+## Divergence and rollback
+
+J5.7 removes duplicate ownership and compatibility seams. It introduces no
+new retail behavior or divergence, so the divergence register requires no new
+row.
+
+Exact rollback:
+
+```text
+git revert cdee7a4b49addb5e1500753f6a885f7c899bd0f0
+```