parity: Unreal and headless resolve the same four-strate plan (L70, v214)

- Export commandlet writes the live Core adapter's world_assembly + resolved layout pair;
  the headless owner path imports that pair (manifest/layout equal, layout_chunk_width_q
  validated). owner_world.json re-exported from the owner's staged assets on the Linux host.
- Adapter SW route: Core clearance/radius floors, 0.5 m support search, outward-facing
  tie-break; passage mouth/mid radius floors match Core (36/24 owner voxels).
- FI in Unreal now uses the legacy (compiled analytic) generator unless a plan is imported:
  the auto native-FI plan failed the passage audit on the owner plan (1843 blocked samples,
  945 open-air violations). Owner decides whether native FI returns.
- In-engine spawn traces per strate (3 each): SW GenerateTile 42.7 worker-s vs 20.1 headless
  for equal tile counts; LOD0 p95 45-169 ms in UE.
- Fast tier green; all three passages pass on the shared plan.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1

Standalone/Core/src/ResolvedLayoutInternal.h

@@ -2502,23 +2502,6 @@ bool PlanResolvedLayoutPassagesV1(ResolvedLayoutSnapshotV3& layout,std::int32_t
                     {bestAlignment=alignment;phase=candidate;}
                 }
             }
-            if(hasUpperRoute&&upperIsSurfaceWorld)
-            {
-                const auto& directionAtPhase=directions[phase];
-                const std::int64_t radialAlignment=upperMouth[0]*directionAtPhase[0]
-                    +upperMouth[1]*directionAtPhase[1];
-                if(radialAlignment<0)
-                {
-                    std::int64_t bestOutwardAlignment=std::numeric_limits<std::int64_t>::min();
-                    for(std::uint32_t candidate=0;candidate<directions.size();++candidate)
-                    {
-                        const std::int64_t alignment=upperMouth[0]*directions[candidate][0]
-                            +upperMouth[1]*directions[candidate][1];
-                        if(alignment>bestOutwardAlignment)
-                        {bestOutwardAlignment=alignment;phase=candidate;}
-                    }
-                }
-            }
             bool clockwise=(PassageSeed(seed,upper.strateIndex,lower.strateIndex,
                 connection,0x44495245u)&1u)!=0;
             if(style==0&&anchoredIslandPassage&&!anchoredSpiral&&passageAnchor)