feat(runtime): C3c - production placement cutover: both hosts on the residence conductors (routes 1+8)

Campaign P remaining-physics-divergence, placement cutover slice C3c
(docs/plans/2026-08-02-placement-cutover.md). Both production hosts now
register every initial Create through the residence + continuation-
executor + first-entry-conductor machinery (C0-C3b):

- Graphical (route 1): RegisterEntityWithInitialResidence at Create; the
  shared RuntimeFirstEntryDriveController pumps both conductors from the
  placement-receipt flow; MaterializeProjection and RebucketLiveEntity
  are presentation-only while a residence is ACTIVE (ExecutorCompleted is
  the presentation-binding receipt); post-residence entities take the
  full legacy path including the prepare_to_enter_world clock edges.
  PlayerModeController attaches presentation to the Runtime-published
  controller; its legacy resolve/step-heights/host-construction path is
  deleted; presentation-only rollback (retail has no entry-flow rollback).
- Headless (route 8): OnSpawned registers with residence when a drive
  exists; content-less sessions keep the pre-flip direct registration;
  SynchronizeLocalPlayer/CreateController/ApplySetupStepHeights deleted;
  prepared-collision read failure is a typed AwaitingCollisionSource
  retry; far remotes outside the service window complete celless.
- RuntimeLocalPlayerMovementState.Controller setter sealed internal; all
  controller mutation flows through the publication lifecycle.

Fix slices landed within this cutover, each dual-gated:
- F1: live movement-stat/server-physics application routed through the
  Runtime ownership seam (post-logout ingest crash on the retired
  controller eliminated; RuntimeMovementSkillProjection deleted).
- F2: login activation wedge - collision-admission prefix gate factored
  out of the seal (reentrant-commit RejectedAuthority), rearm generation
  identity corrected, PlayerModeAutoEntry requires the Runtime-published
  controller (world reveal can no longer seal unmaterialized).
- F3: landblock-prefix 0-sentinel replaced by explicit absent-id guards;
  map-corner landblocks (grid row/col 0) fully legal through admission,
  park/rearm/retire, quiescence, and outdoor shadow seeds.
- F5: local-player first-entry ground contact seeded by the shared
  SpawnPlacementSettler (moved App->Core) at FinalizeActivation - the
  retail first-gravity-frame touch (enter_world 0x00516170 carries no
  seed); the legacy unconditional force-seed is overwritten by a real
  floor-found contact; airborne spawns stay airborne; outbound contact
  bit verified end-to-end. Fixes the standing-cast 'You can't do that
  while in the air!' rejections.
- R1 (dual-review round): login constraint leash armed at the committed
  placement (HandleReceivedPosition 0x00453FD0 analog); register rows
  AD-61 (settle-timing compression now covering the local player) and
  AD-42 (repointed off the deleted resolve split) in this commit;
  residence-conversion owner API; wire-landblock guards; drive-pending
  ledger in IsConverged; route attach/detach latch; executor-drain drift
  model documented + source-pinned.

Gates: Runtime 1,003, App 4,039/3 skips, Headless 79, complete solution
10,816/0 failed/4 skips (Release, -m:1); connected lifecycle/reconnect
gate PASS (logs/connected-world-gate-20260802-175401; graceful exits,
world-visible, zero airborne rejections). The nine-stop soak remains red
for the pre-existing 6b28ff99 whole-world collision-clone throughput
regression (attributed with evidence; scheduled as its own slice before
C5). Dual Opus reviews (retail-conformance + adversarial): delta PASS.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/AcDream.App.Tests/Rendering/LiveEntityCreateSupersessionRecoveryTests.cs

@@ -74,7 +74,22 @@ public sealed class LiveEntityCreateSupersessionRecoveryTests
             publishAppearance: _ =>
             {
                 operations.Add("appearance");
-                runtime.RegisterLiveEntity(Spawn() with { Name = "fresher" });
+                // C3c: a fresher same-generation CreateObject no longer
+                // advances create authority at registration — while a
+                // residence is active it is FIFO-staged and its authority
+                // advance lands at the executor drain's WeenieDescription
+                // stage (AdvanceCreateAuthority). Model that exact advance
+                // directly so the between-stage revalidation guard stays
+                // covered.
+                // C3c-R1 F3: honest MODEL of the executor drain's advance
+                // (ApplyWeenieDescriptionAction — the sole production site,
+                // source-pinned by C3cR1F3DriftModelSourcePinTests); a
+                // nested production OnCreate can no longer reach it —
+                // post-residence registration is description-only
+                // (RuntimeEntityObjectLifetime :660-665,
+                // !beginInitialResidence gate) and ConsumeExecuted already
+                // removed the completed residence entry.
+                record.Canonical.AdvanceCreateAuthority();
                 return true;
             },
             publishCurrentSnapshot: _ => operations.Add("current"),
@@ -315,7 +330,7 @@ public sealed class LiveEntityCreateSupersessionRecoveryTests
         return record;
     }
 
-    private static WorldSession.EntitySpawn Spawn() => new(
+    private static WorldSession.EntitySpawn Spawn() => new WorldSession.EntitySpawn(
         Guid,
         new CreateObject.ServerPosition(
             Cell,
@@ -336,7 +351,7 @@ public sealed class LiveEntityCreateSupersessionRecoveryTests
         ItemType: null,
         MotionState: null,
         MotionTableId: null,
-        InstanceSequence: 1);
+        InstanceSequence: 1).WithConsistentPhysics();
 
     private static LiveEntityAnimationState AnimationState(
         WorldEntity entity,