docs(architecture): record pipeline-owned retirement

Close Slice 5F in the execution ledger, update the milestone and roadmap measurements, and advance the active checkpoint to direct cutover and dead-facade cleanup.

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

docs/architecture/code-structure.md

@@ -542,7 +542,11 @@ keeps a second identity dictionary. ForcePosition serializes and stamps one
 exact canonical outbound Position. Three corrected-diff reviews, the complete
 6,940-test Release suite, and the 310-second seven-destination connected R6
 route all passed. `GameWindow` is 10,301 lines / 267 fields / 163 methods.
-Slice 5 is active next.
+Slice 5 checkpoints A–F are complete. The pipeline owns the serialized worker
+build, concrete render/physics/static publication, and retryable Near/full
+retirement; `GameWindow.cs` is 9,011 lines and no longer owns a retirement
+coordinator or callback body. Checkpoint G direct cutover/dead-facade cleanup
+is active next, followed by deterministic and connected closeout in H.
 
 #### Slice 5 — extract landblock presentation
 

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

@@ -47,10 +47,12 @@ passes 6,940 tests with five intentional skips. The 310-second connected R6
 gate passed seven destinations/revisits, movement/jump/combat exercises, and
 graceful close.
 
-**Next:** Slice 5 extracts DAT-backed landblock build, publication, demotion,
+**Current:** Slice 5 checkpoints A–F have extracted the DAT-backed worker
-and retirement into `LandblockPresentationPipeline` while preserving
+build plus render, physics, DAT-static, and retryable Near/full presentation
-`StreamingController` residency decisions and `GpuWorldState` spatial
+ownership into `LandblockPresentationPipeline`. `GameWindow` is 9,011 lines
-ownership.
+and the Release suite passes 7,039 tests with five intentional skips. Slice 5G
+now removes the obsolete callback bodies and scratch/facade state before the
+deterministic and connected closeout in H.
 
 This is a behavior-preserving structural program. Severe regressions still get
 root-cause fixes in separate commits; ordinary feature work resumes with M4

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

@@ -19,10 +19,13 @@ layer, the active structural prerequisite is the behavior-preserving
 The 2026-07-21 audit baseline was 15,723 lines, 278 fields, and 205 methods.
 Selection/interaction Slice 1, live-animation-presentation Slice 2, complete
 live-session ownership Slice 3, and live-entity App integration Slice 4 are
-complete. `GameWindow` is now 10,301 lines, 267 fields, and 163 methods. The
+complete. Slice 5 landblock-presentation checkpoints A–F are also complete:
-full Release suite passes 6,940 tests / 5 skips, and Slice 4's seven-destination
+the worker DAT transaction, render/physics/static publishers, and retryable
-connected R6 route passed in 310 seconds. Slice 5 — landblock presentation —
+Near/full retirement now have focused owners. `GameWindow` is 9,011 lines,
-is active next.
+down 1,290 from the Slice-5 baseline and 6,712 from the campaign baseline. The
+full Release suite passes 7,039 tests / 5 skips; Slice 4's seven-destination
+connected R6 route passed in 310 seconds. Slice 5G direct cutover and dead
+facade/scratch cleanup is active next.
 
 Carried:
 #153 far-teleport residual, #116 slide-response, the remaining R6 ownership cleanup plus

docs/plans/2026-07-21-gamewindow-slice-5-landblock-presentation.md

@@ -80,8 +80,22 @@ test, and bisectable commit rather than being hidden in a mechanical move.
     corrected-diff reviews are clean. Release gate: 7,026 passed / 5 skipped;
     `GameWindow.cs` is temporarily 9,073 lines because production wiring lands
     before checkpoint G deletes the old callback body.
-- [ ] F — move retryable demotion/full-retirement presentation under the
+- [x] F — move retryable demotion/full-retirement presentation under the
   pipeline without changing `LandblockRetirementCoordinator`'s ledger.
+  - Landed in `ea7ffbc1`: the pipeline now owns a focused
+    `LandblockPresentationRetirementOwner` and its exact detach-first ledger;
+    `GameWindow` no longer owns a coordinator or retirement callback body.
+    Full and Near retirements preserve their distinct terrain/physics/live
+    owner matrices, successful stages and entity cursors never replay, and
+    reentrant Begin/Advance requests serialize without mutating an active
+    ticket enumeration. A committed visibility-observer failure retains the
+    detach receipt, completes presentation teardown, drains deferred work,
+    then rethrows. Constructor identity guards enforce one world-state,
+    publisher, lighting, and translucency graph, while explicit concrete and
+    legacy controller overloads make ignored presentation callbacks
+    impossible. Three corrected-diff reviews are clean. Release gate: 7,039
+    passed / 5 skipped; build green with 17 pre-existing test-project warnings;
+    `GameWindow.cs` is 9,011 lines.
 - [ ] G — cut `StreamingController` and `GameWindow` directly to the pipeline;
   delete old bodies, scratch state, and callback facades.
 - [ ] H — three-agent corrected-diff review, full Release suite, deterministic