docs(runtime): close local movement ownership

Record the exact J5.4 automated, lifecycle/reconnect, and nine-stop movement evidence; advance the Modern Runtime program to J5.5; and synchronize architecture, roadmap, milestones, AGENTS/CLAUDE, rollback, and durable research pointers.

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

docs/architecture/acdream-architecture.md

@@ -231,7 +231,7 @@ src/
       InteractionState.cs -> presentation-free cursor-target mode state
       RuntimeInteractionTransactionState.cs -> use/appraisal/pickup FIFO,
                                                exact approach and busy borrower
-    -> J3–J4 and J5.1–J5.3 complete; J5.4 local movement/cadence active
+    -> J3–J4 and J5.1–J5.4 complete; J5.5 per-session physics active
     -> may reference Core, Core.Net, Content, and Plugin.Abstractions only
     -> must never reference App, UI, Silk.NET, OpenAL, Arch, or ImGui
   
@@ -504,7 +504,11 @@ combat-target, combat-mode, and spell-cast intent children. Retained bars and
 graphical input adapters borrow those exact owners, while direct Runtime
 commands drive the same operations and snapshots. App retains world/content
 queries, transport, animation, sound, particles, and response text
-(`20df9d15`). J5.4 next moves canonical local movement and outbound cadence.
+(`20df9d15`). `RuntimeLocalPlayerMovementState` owns the exact local movement
+controller, construction seam, autorun latch, typed view, and terminal ledger;
+graphical input and direct commands borrow that owner, and outbound
+MTS/jump/AP cadence lives in Runtime (`aa3f4a60`). J5.5 next moves per-session
+physics and remote simulation.
 
 `GpuWorldState` owns spatial buckets only and retains the exact projection key
 through loaded/pending movement, landblock retirement/reload, origin recenter,