docs: hand off placement campaign finish

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

@@ -109,12 +109,18 @@ through the canonical SetPosition lifecycle. Independent retail-conformance
 and architecture/adversarial reviews both PASS after five implementation
 rounds; register rows AD-59/AD-60/AP-130/AP-131/AP-132/TS-62/TS-63 document
 the slice's deviations; Runtime tests 903/903, complete Release solution
-10,696/4 skips. Production Create registration is still NOT cut over — the
-executor has no production caller. The remaining order is the all-host/
-all-route cutover (which can retire AP-1/AD-1 behind its connected/visual
-gates), AP-22 shape fidelity, AD-10 remote contact-plane projection, and the
-final matrix/ledger closeout. Resume Slice 5 vendor browsing only after that
-closeout or a new explicit user direction.
+10,696/4 skips. Production initial Create registration is now cut over by C3c
+(`529e0e9d`). The O(changed) collision-publication checkpoint and
+stabilization fixes `01f4791e`, `670f307c`, `1fc529cd`, `f24532ad`, and
+`175ad6b0` are connected user-accepted for recenter convergence, remote
+monster/static placement and targeting, distant Use, spell/projectile/static
+VFX, and login materialization. The remaining order is six selected-fixture
+reconciliations, C4 routes 2–7, portal destination prefetch #280, C5's
+final-binary complete suite/soak/two-client matrix, AP-22 shape fidelity,
+AD-10 remote contact-plane projection, and final ledger closeout. Resume Slice
+5 vendor browsing only after that closeout or a new explicit user direction.
+Canonical checkpoint:
+[`2026-08-02-placement-cutover.md`](2026-08-02-placement-cutover.md).
 
 The separately authorized modern-runtime performance program has completed
 Slices A–D: corrected measurement, prepared-package bake/dedup, package-only