docs(runtime): close J1 contract gate

Record the exact-binary connected lifecycle/reconnect acceptance, synchronized active pointers, rollback, and durable evidence before session ownership moves in J2.

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

@@ -1673,14 +1673,19 @@ port in any phase — no separate listing here.
 > skips plus both exact-binary connected routes; every stable checkpoint
 > reports `0/0/0` graph residency while flat assets remain populated. J0
 > established the presentation-independent Runtime boundary with four enforced
-> dependency guards; J1 is now active.
+> dependency guards. J1 now provides borrowed views, typed press-time commands,
+> ordered deltas, an instance clock, generation/lifecycle state, and teardown
+> acknowledgements over the same canonical owners. Its 13 Runtime tests, 3,838
+> App tests / 3 skips, 8,424-test / 5-skip complete Release suite, and exact-
+> binary seven-checkpoint lifecycle/reconnect gate pass with graceful exits.
+> J2 is now active.
 > The historical exact cutover
 > rollback remains
 > `git revert ef1d263337997bb030eadb7b8e71d73dc659907a`. Slice H is complete:
 > retained UI/frame work, exact bounded light selection, and
 > pooled/borrowed/direct network I/O pass 8,292 Release tests / 5 skips and the
 > connected lifecycle/reconnect gate. Slice I is closed in
-> [its detailed plan](2026-07-25-modern-runtime-slice-i.md); Slice J1 executes
+> [its detailed plan](2026-07-25-modern-runtime-slice-i.md); Slice J2 executes
 > from [its lifetime-group plan](2026-07-25-modern-runtime-slice-j.md).
 
 **Spec:** `docs/superpowers/specs/2026-07-05-modern-pipeline-design.md` (the

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

@@ -147,9 +147,14 @@ Following user collision acceptance, `82f8d4f8` removed every production
 parsed collision graph. Slice I7 passes 8,413 Release tests / 5 skips and both
 exact-binary connected lifecycle/reconnect and nine-stop routes; parsed graph
 residency is `0/0/0` at every stable checkpoint and teardown converges. Slice I
-is complete. Slice J0 established and enforced the presentation-independent
-`AcDream.Runtime` boundary without moving behavior; J1 is active under
-[`2026-07-25-modern-runtime-slice-j.md`](2026-07-25-modern-runtime-slice-j.md).
+  is complete. Slice J0 established and enforced the presentation-independent
+  `AcDream.Runtime` boundary. J1 added borrowed views, typed synchronous
+  commands, ordered events, an instance clock, generation/lifecycle contracts,
+  and teardown acknowledgements without moving a canonical owner. Runtime
+  tests pass 13/13, App tests pass 3,838/3 skips, the full Release suite passes
+  8,424/5 skips, and the exact-binary seven-checkpoint connected gate exits
+  gracefully. J2 session lifetime and ordered transport extraction 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).
 The historical exact G4 visual rollback remains

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

@@ -5,8 +5,9 @@
 **Status:** Slices A–I 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's dependency-boundary preparation is
-complete without moving gameplay owners; J1 is the active execution point.
+explicitly approved 2026-07-24. Slice J0–J1 established the enforced Runtime
+boundary and the borrowed view/command/event seam without moving canonical
+gameplay owners; J2 is the active execution point.
 
 **Scope:** Reconcile and sequence the existing Modern Pipeline (`MP`) and
 Linux/headless (`LH`) tracks using the 2026-07-24 connected performance audit.
@@ -1271,7 +1272,7 @@ honest metrics + committed baselines        (A — exit criteria block C)
   -> delta GPU submission                   (G)
   -> residual frame cleanup                 (H-a, H-b, H-c)
   -> flat collision assets                  (I — COMPLETE)
-  -> presentation-independent runtime       (J — CURRENT at J1)
+  -> presentation-independent runtime       (J — CURRENT at J2)
   -> Linux/headless/multi-session           (K)
   -> evidence-gated GPU jobs                (L)
 ```

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

@@ -1,7 +1,7 @@
 # Modern runtime Slice J — presentation-independent runtime
 
-**Status:** J0 COMPLETE — lifetime plan, project boundary, and dependency
-guards; Slice I is closed and J1 is ACTIVE
+**Status:** J0–J1 COMPLETE — lifetime boundary plus borrowed view, command,
+event, clock, generation, and teardown contracts; J2 is 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
@@ -103,6 +103,8 @@ git revert b632672e5ccabfb44c551e08f1c411ab2669c44a
 
 ### J1 — read, command, event, clock, and lifecycle contracts
 
+**Completed 2026-07-25 at `854d9e9c`.**
+
 - Define `IGameRuntimeView`, typed command interfaces, ordered event/delta
   records, instance clock, lifecycle states, generation tokens, and teardown
   acknowledgements.
@@ -117,6 +119,28 @@ Gate: adapter and direct-host traces are identical over deterministic session,
 entity, inventory, chat, movement, and portal fixtures; no canonical owner has
 moved yet.
 
+Result:
+
+- `AcDream.Runtime` owns immutable borrowed-view contracts, typed commands,
+  ordered deltas, an instance clock, generation tokens, lifecycle snapshots,
+  and retryable teardown acknowledgements.
+- Focused App adapters borrow the current canonical owners. They create no
+  second GUID map, state store, command queue, or frame boundary.
+- Startup plus press-time selection, movement, and combat input now traverse
+  the typed command seam synchronously and still mutate the exact same owners.
+- Runtime tests pass 13/13, App tests pass 3,838 with three skips, and the
+  complete Release solution passes 8,424 tests with five skips.
+- The exact-binary connected gate at
+  `logs/connected-world-gate-20260725-190953/report.json` passed six capped
+  world checkpoints plus a fresh uncapped reconnect. Both processes exited
+  gracefully with no failures.
+
+Exact rollback:
+
+```text
+git revert 854d9e9cd13092bd5aaa3cf025d73eeb4600e9f8
+```
+
 ### J2 — session lifetime and ordered transport group
 
 - Remove App presentation dependencies from `LiveSessionController`,