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/AuditMouthShapeL37.py

@@ -7,6 +7,7 @@ from collections import defaultdict, deque
 from pathlib import Path
 
 ROOT = Path(__file__).resolve().parents[4]
+BASELINES = ROOT / "Standalone/Tools/verify/baselines"
 PROFILE_PATH = ROOT / "Standalone/Research/WorldAssemblerM3/Linux32/AuditRingTerraceL32.py"
 SPEC = importlib.util.spec_from_file_location("ring_profile_l37", PROFILE_PATH)
 PROFILE = importlib.util.module_from_spec(SPEC)
@@ -502,8 +503,8 @@ def main():
     parser = argparse.ArgumentParser(description=__doc__)
     parser.add_argument("--out", type=Path, default=ROOT / "Saved/Linux/l37")
     parser.add_argument("--baseline-out", type=Path,
-                        default=ROOT / "Saved/Linux/l37/no-tread-control")
-    parser.add_argument("--control-out", type=Path, default=ROOT / "Saved/Linux/l36")
+                        default=BASELINES / "mouth/l37-no-tread")
+    parser.add_argument("--control-out", type=Path, default=BASELINES / "mouth/l36")
     parser.add_argument("--scene", choices=tuple(SCENES) + ("all",), default="all")
     args = parser.parse_args()
     out = args.out if args.out.is_absolute() else ROOT / args.out

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)

Standalone/Research/WorldAssemblerM3/Linux37/RunMouthCreaseAuditL37.py

@@ -11,6 +11,7 @@ import argparse
 from pathlib import Path
 
 ROOT = Path(__file__).resolve().parents[4]
+BASELINES = ROOT / "Standalone/Tools/verify/baselines"
 BASE_PATH = ROOT / "Standalone/Research/WorldAssemblerM3/Linux37/RunMouthFragmentAuditL37.py"
 SPEC = importlib.util.spec_from_file_location("mouth_fragment_l37", BASE_PATH)
 BASE = importlib.util.module_from_spec(SPEC)
@@ -184,8 +185,8 @@ def main():
     parser.add_argument("--capture-log-sw", type=Path)
     args = parser.parse_args()
     paths = {
-        "L35": ROOT / "Saved/Linux/l35/owner-fi-ground-mouth.vfmesh",
-        "L36": ROOT / "Saved/Linux/l36/owner-fi-ground-mouth.vfmesh",
+        "L35": BASELINES / "mouth/l35/owner-fi-ground-mouth.vfmesh",
+        "L36": BASELINES / "mouth/l36/owner-fi-ground-mouth.vfmesh",
         "L37": args.candidate if args.candidate.is_absolute()
             else ROOT / args.candidate,
     }

Standalone/Research/WorldAssemblerM3/Linux37/RunRingAuditsL37.py

@@ -10,6 +10,7 @@ import os
 from pathlib import Path
 
 ROOT = Path(__file__).resolve().parents[4]
+BASELINES = ROOT / "Standalone/Tools/verify/baselines"
 OUT = Path(os.environ.get("VOXELFORGE_VERIFY_OUT", ROOT / "Saved/Linux/l37"))
 BIN = Path(os.environ.get("VOXELFORGE_VERIFY_HEADLESS",
                           OUT / "bin/VoxelForgeCoreHeadless-l37-final-clang"))
@@ -177,9 +178,9 @@ for label, recipe, surface, window_min, window_max, camera0, camera1, centers in
 
 # Keep the established L30 terrace and L31 flat-surface negative controls live.
 controls = (
-    ("l30-terrace", ROOT / "Saved/Linux/l32/fi-floor-l30-camera-negative.vfmesh",
+    ("l30-terrace", BASELINES / "ring/l32-fi-floor-l30-camera-negative.vfmesh",
      -130.0, -110.0),
-    ("l31-flat", ROOT / "Saved/Linux/l31/fi-floor-v19.vfmesh", -122.0, -117.0),
+    ("l31-flat", BASELINES / "ring/l31-fi-floor-v19.vfmesh", -122.0, -117.0),
 )
 for name, mesh, height_min, height_max in (() if OPTIONS.skip_controls else controls):
     result, output, _ = run(f"control-{name}", ["python3", TERRACE, mesh,