core: one passage influence reach in metres, converted once (L130, evaluator v227)

Reach = 0.75 shell + 0.21 relief + 0.50/6 smooth-max support + 0.01 = 1.0533 m, used by proof, feature, fallback,
off-grid bounds and the sweep cutoff. Removes the dead 4 m term (v225 added metres to core-voxel coordinates).
Captures and mouth close-ups byte-identical; proof audit 0 misses over 25,728 shell/crest samples; floor 7.884 mm;
seams, walkability, fast tier, Clang/GCC W1/W8/W12 green; timing equal within noise.

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

Standalone/Research/WorldAssemblerM3/Linux130/RunL130HashMatrix.py

@@ -0,0 +1,95 @@
+#!/usr/bin/env python3
+"""Run Clang/GCC owner hashes at W1/W8/W12 and compare with b96dd73."""
+from __future__ import annotations
+
+import json
+import re
+import subprocess
+import time
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[4]
+OUT = ROOT / "Saved/Linux/l130/hashes"
+BASELINE = json.loads((ROOT / "Saved/Linux/l125/hashes/summary.json").read_text())
+DATASETS = {
+    "owner4": ROOT / "Standalone/data/owner_world.json",
+    "owner2": ROOT / "Standalone/data/regression/owner_world_2strate_l61.json",
+}
+RECIPES = {"owner4": ("surface-world",),
+           "owner2": ("surface-world", "floating-islands")}
+BINARIES = {
+    "clang": ROOT / "Saved/Linux/l130/bin/VoxelForgeCoreHeadless-l130-clang",
+    "gcc": ROOT / "Saved/Linux/l130/bin/VoxelForgeCoreHeadless-l130-gcc",
+}
+HASH_RE = re.compile(r"^\[Pipeline(?:FullDetailHash|WholeViewHash|LODHash|ExactQueryHash)\].*$", re.M)
+STAMP_RE = re.compile(r"^\[VoxelForgeSourceStamp\] sha256=(\S+)$", re.M)
+
+
+def run(dataset: str, recipe: str, workers: int, compiler: str) -> dict:
+    OUT.mkdir(parents=True, exist_ok=True)
+    label = f"{dataset}-{recipe}-w{workers}-{compiler}"
+    log = OUT / f"{label}.log"
+    layout = OUT / f"{label}.layout.json"
+    command = ["taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--",
+        "timeout", "1740s", str(BINARIES[compiler]), str(DATASETS[dataset]),
+        f"--workers={workers}", "--world-assembler-prototype", "--stream-benchmark",
+        "--stream-pipeline", "--force-generate", "--clip-radius=3",
+        "--max-clip-level=8", "--max-level=8", f"--recipe={recipe}",
+        "--stream-hash", f"--resolved-layout-output={layout}"]
+    started = time.monotonic()
+    with log.open("w", encoding="utf-8") as stream:
+        result = subprocess.run(command, cwd=ROOT, stdout=stream,
+            stderr=subprocess.STDOUT, check=False, timeout=1740)
+    output = log.read_text(encoding="utf-8", errors="replace")
+    hashes = HASH_RE.findall(output)
+    if result.returncode or len(hashes) != 12:
+        raise SystemExit(f"hash run failed: {label}; exit={result.returncode} "
+                         f"hashes={len(hashes)} log={log}")
+    stamp = STAMP_RE.search(output)
+    row = {"dataset": dataset, "recipe": recipe, "workers": workers,
+        "compiler": compiler, "exit_code": result.returncode, "hashes": hashes,
+        "source_stamp": stamp.group(1) if stamp else None,
+        "elapsed_s": round(time.monotonic() - started, 3),
+        "log": str(log.relative_to(ROOT))}
+    print("[L130HashRun] " + json.dumps(row, sort_keys=True), flush=True)
+    return row
+
+
+def main() -> int:
+    if any(not path.is_file() for path in (*DATASETS.values(), *BINARIES.values())):
+        raise SystemExit("missing L130 hash input")
+    old = {(row["dataset"], row["recipe"], row["workers"], row["compiler"]): row
+           for row in BASELINE["runs"]}
+    rows = []
+    for dataset, recipes in RECIPES.items():
+        for recipe in recipes:
+            for workers in (1, 8, 12):
+                for compiler in ("clang", "gcc"):
+                    rows.append(run(dataset, recipe, workers, compiler))
+                    (OUT / "runs-partial.json").write_text(
+                        json.dumps(rows, indent=2) + "\n", encoding="utf-8")
+    groups = {}
+    for dataset, recipes in RECIPES.items():
+        for recipe in recipes:
+            group = [row for row in rows if row["dataset"] == dataset
+                     and row["recipe"] == recipe]
+            key = f"{dataset}/{recipe}"
+            stable = all(row["hashes"] == group[0]["hashes"] for row in group)
+            baseline = old[(dataset, recipe, 12, "clang")]["hashes"]
+            changed = [i for i, (before, after) in enumerate(zip(baseline,
+                group[0]["hashes"])) if before != after]
+            groups[key] = {"all_workers_and_compilers_match": stable,
+                "matches_b96dd73_v225": not changed,
+                "changed_hash_rows_from_v225": changed,
+                "source_stamps": sorted({row["source_stamp"] for row in group})}
+            if not stable:
+                raise SystemExit(f"worker/compiler hash mismatch: {key}")
+    (OUT / "summary.json").write_text(
+        json.dumps({"baseline_source": "b96dd73", "runs": rows,
+                    "groups": groups}, indent=2) + "\n", encoding="utf-8")
+    print("[L130HashSummary] " + json.dumps(groups, sort_keys=True), flush=True)
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())