docs(runtime): close per-session physics ownership

Record J5.5 production SHA, complete Release baseline, exact-binary lifecycle/reconnect and nine-stop collision/movement evidence, and rollback. Synchronize architecture, roadmap, milestones, AGENTS/CLAUDE, and advance the active program to J5.6 projectile runtime.

Co-authored-by: Codex <noreply@openai.com>

docs/research/2026-07-26-slice-j5-5-physics-remote-ownership.md

@@ -196,5 +196,20 @@ Automated gate on the J5.5 production tree:
   production cache, does not contain the remote/ordinary transition solver,
   and cannot directly admit/remove streamed landblock collision.
 
-Connected lifecycle/reconnect and the canonical movement/collision route are
-the exact-binary post-commit gate.
+Connected gates pass on exact production commit
+`7e6033d0adcd0b572c20e89dd275746fb442d52f`:
+
+- `logs/connected-world-gate-20260726-134107/report.json` completed capped
+  login and uncapped fresh-process reconnect, all 7 readiness checkpoints,
+  graceful code-zero exits, and zero failures;
+- `logs/connected-r6-soak-20260726-134638.report.json` matched source and
+  binary SHA, materialized all 9 destinations with render and collision ready,
+  passed forward/jump/combat/authoritative movement exercises at Caul,
+  Holtburg, and Caul return, and exited gracefully with code zero and zero
+  failures.
+
+Exact production rollback:
+
+```text
+git revert 7e6033d0adcd0b572c20e89dd275746fb442d52f
+```