trace: Unreal timing traces run without hash capture (L71); verify baselines tracked

The L70 "2x SurfaceWorld GenerateTile in Unreal" was the instrument: the trace enabled
bCaptureVoxelForgeCoreHashesForValidation, which disables the native heightfield-band
shortcut and whole-tile skips (W1 same keys: 9.00 s hash-off vs 28.46 s hash-on). With
hashing off, Unreal and headless match at W8 within 1.2-2.5% (Core 14.42 s vs 14.26 s) on
identical tile keys. LOD0 p95 tail = real cost of non-empty passage tiles near the spawn mouth
(p50/p95 18.8/105 ms); most LOD0 tiles are empty.

verify.py reads its baselines from Standalone/Tools/verify/baselines/ instead of untracked
Saved/Linux. The 11 .vfmesh control meshes (~78 MB) are not committed yet (to be stored
compressed). Fast tier green.

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

Standalone/Research/WorldAssemblerM3/Linux37/CapturePassageStandardSetL37.py

@@ -13,6 +13,7 @@ from pathlib import Path
 
 
 ROOT = Path(__file__).resolve().parents[4]
+BASELINES = ROOT / "Standalone/Tools/verify/baselines"
 OUT = Path(os.environ.get("VOXELFORGE_L37_OUT",
                           os.environ.get("VOXELFORGE_VERIFY_OUT", ROOT / "Saved/Linux/l37")))
 BIN = OUT / "bin"
@@ -138,7 +139,7 @@ def fmt(values):
 
 
 def load_reference_cameras():
-    log = ROOT / "Saved/Linux/l34/run-capture-standard-set-final-radius3.log"
+    log = BASELINES / "capture/l34-standard-set-cameras.baseline"
     pattern = re.compile(
         r"^\[L34CaptureCamera\] view=(\S+).*?camera_m=\(([^)]*)\) "
         r"target_m=\(([^)]*)\) clip=(\S+)", re.M)