docs(runtime): close J3.4 and plan J3.5

docs/plans/2026-07-25-modern-runtime-slice-j3-object-table.md

@@ -1,9 +1,11 @@
 # Modern runtime J3.4 — canonical object-table ownership
 
-**Status:** READY
+**Status:** COMPLETE
 **Parent:** `2026-07-25-modern-runtime-slice-j3.md`
 **Required production base:** `e937cc36df39cf6ea1eaba2f9c0243d1929da702`
 **Prior closeout:** `docs/research/2026-07-25-slice-j3-3-exact-projection-store.md`
+**Production commit:** `5ef8b5371d8990f0380acd939e71cd711289d429`
+**Closeout:** `docs/research/2026-07-26-slice-j3-4-canonical-object-lifetime.md`
 
 ## Objective
 
@@ -222,8 +224,39 @@ exposes an inventory, paperdoll, selection, or interaction symptom.
 
 ## Rollback
 
-Record the exact J3.4 production commit here before its connected gate. J3.3
-remains independently reversible; do not use its rollback for a J3.4 failure.
+The exact J3.4 rollback is:
+
+```text
+git revert 5ef8b5371d8990f0380acd939e71cd711289d429
+```
+
+J3.3 remains independently reversible; do not use its rollback for a J3.4
+failure.
+
+## Result
+
+`RuntimeEntityObjectLifetime` now constructs and owns the one
+`RuntimeEntityDirectory` and one live `ClientObjectTable`. `GameWindow`,
+session routing, retained UI, interaction, and the graphical projection host
+borrow those exact instances.
+
+Accepted CreateObject mutation revalidates the exact canonical record and
+`CreateIntegrationVersion` before, during, and after synchronous object-table
+callbacks. Authoritative DeleteObject acceptance uses an exact, single-use
+Runtime token: the active identity is retired first and retained-object
+removal then commits before App resource teardown. Dormant/offscreen pruning
+does not remove retained object information.
+
+Final gates:
+
+- Runtime: 118 passed;
+- App: 3,762 passed / 3 skipped;
+- complete Release solution: 8,453 passed / 5 skipped;
+- exact-binary connected lifecycle/reconnect:
+  `logs/connected-world-gate-20260726-055713/report.json`;
+- two sessions, seven checkpoints, graceful zero-code exits, zero failures,
+  zero render-shadow mismatches, zero pending deltas, and zero pending live
+  teardown/publication/retirement work.
 
 ## Final J3 goal