core: Vertical Shafts on the shared Core cave planner (L139, v237; 15/16 seeds)

Shaft mode reuses PlanResolvedCavernNetworkV1 with a capped full-height cylinder primitive (shapeKind=1), ledges,
access bores and cross links; 11 VerticalShaftParams fields mapped. Basal law: arrival 2-3 to a walkable terminal
landing; drops/climbs stay reporting tiers. Seed 2 fails shell/seams at the 2-3 arrival mouth (3 variants tried,
stopped per AGENTS.md). Whole view faster than assembler/world in 8/8 cells; near-ready slower in 7/8.
Source/: VoxelForgeCoreAdapter.cpp.

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

Standalone/Research/WorldAssemblerM3/Linux139/RunL139SeedSweep.py

@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+"""Audit the composed owner world, including the basal Vertical Shafts route."""
+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/l139/seeds"
+BIN = ROOT / "Saved/Linux/l139/bin/VoxelForgeCoreHeadless-l139-clang"
+DATA = ROOT / "Standalone/data/owner_world.json"
+STAMP = "b8603b6cb3975ca0f9669759e4e2464561c557fdb7aa6836acef123ecf0b99d1"
+STAMP_RE = re.compile(r"^\[VoxelForgeSourceStamp\] sha256=([0-9a-f]+)$", re.M)
+REQUIRED = {
+    "passages": re.compile(r"^\[ResolvedPassageAuditSummary\].*status=PASS$", re.M),
+    "route": re.compile(
+        r"^\[ResolvedStrateRouteAudit\] strate=3 .*unsupported=0 grade_failures=0 .*status=PASS$",
+        re.M),
+    "seams": re.compile(r"^\[PassageTileSeamAudit\].*status=PASS$", re.M),
+    "shell": re.compile(r"^\[PassageShellAuditSummary\].*status=PASS$", re.M),
+    "naturalness": re.compile(r"^\[PassageNaturalnessSummary\].*status=PASS$", re.M),
+    "mouth_profile": re.compile(r"^\[PassageMouthProfileSummary\].*status=PASS$", re.M),
+    "ripple": re.compile(r"^\[PassageRippleAuditSummary\].*status=PASS$", re.M),
+    "shaft_dispatch": re.compile(
+        r"^\[DensityDispatch\] strate=3 generator=VerticalShafts "
+        r"recipe=Core\.Caves\.PrimitiveField version=1 "
+        r"bound_path=Caves-native adapter=FCavesFieldAdapter$", re.M),
+    "shaft_blocked_route": re.compile(
+        r"^\[VerticalShaftsBlockedRouteControl\].*expected=FAIL status=PASS$", re.M),
+}
+
+
+def main() -> int:
+    if not BIN.is_file() or not DATA.is_file():
+        raise SystemExit("missing L139 Clang binary or composed owner fixture")
+    OUT.mkdir(parents=True, exist_ok=True)
+    results = []
+    partial = OUT / "runs-partial.json"
+    if partial.is_file():
+        for prior in json.loads(partial.read_text(encoding="utf-8")):
+            seed = len(results)
+            if prior.get("seed") != seed:
+                break
+            log = ROOT / prior.get("log", "")
+            layout = ROOT / prior.get("layout", "")
+            if not log.is_file() or not layout.is_file():
+                break
+            content = log.read_text(encoding="utf-8", errors="replace")
+            stamp = STAMP_RE.search(content)
+            checks = {name: bool(pattern.search(content))
+                      for name, pattern in REQUIRED.items()}
+            checks["source_stamp"] = stamp is not None and stamp.group(1) == STAMP
+            checks["blocked_passage_controls"] = len(re.findall(
+                r"^\[ResolvedPassageBlockedControl\].*detected=true$", content, re.M)) == 3
+            checks["passage_count"] = len(re.findall(
+                r"^\[ResolvedPassageAudit\].*walkability=PASS$", content, re.M)) == 3
+            passed = prior.get("exit") == 0 and all(checks.values())
+            if checks != prior.get("checks") or passed != prior.get("passed"):
+                break
+            results.append(prior)
+        print(f"[L139SeedSweepResume] reused={len(results)} source_stamp={STAMP}",
+              flush=True)
+    for seed in range(len(results), 16):
+        log = OUT / f"seed{seed}.log"
+        layout = OUT / f"seed{seed}.json"
+        command = ["taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--",
+            "timeout", "1740s", str(BIN), str(DATA), "--world-assembler-prototype",
+            "--stream-benchmark", "--stream-pipeline", "--workers=8", "--clip-radius=3",
+            "--max-clip-level=8", "--max-level=0", "--force-generate", f"--seed={seed}",
+            "--recipe=surface-world", "--density-dispatch-report",
+            "--audit-resolved-layout-passages", "--audit-passage-tile-seams",
+            f"--resolved-layout-output={layout}"]
+        started = time.monotonic()
+        with log.open("w", encoding="utf-8") as output:
+            proc = subprocess.run(command, cwd=ROOT, stdout=output,
+                                  stderr=subprocess.STDOUT, check=False, timeout=1740)
+        content = log.read_text(encoding="utf-8", errors="replace")
+        stamp = STAMP_RE.search(content)
+        checks = {name: bool(pattern.search(content)) for name, pattern in REQUIRED.items()}
+        checks["source_stamp"] = stamp is not None and stamp.group(1) == STAMP
+        checks["blocked_passage_controls"] = len(re.findall(
+            r"^\[ResolvedPassageBlockedControl\].*detected=true$", content, re.M)) == 3
+        checks["passage_count"] = len(re.findall(
+            r"^\[ResolvedPassageAudit\].*walkability=PASS$", content, re.M)) == 3
+        passed = proc.returncode == 0 and all(checks.values())
+        row = {"seed": seed, "exit": proc.returncode, "passed": passed,
+               "checks": checks, "elapsed_s": round(time.monotonic() - started, 3),
+               "log": str(log.relative_to(ROOT)), "layout": str(layout.relative_to(ROOT))}
+        results.append(row)
+        print("[L139SeedSweep] " + json.dumps(row, sort_keys=True), flush=True)
+        partial.write_text(json.dumps(results, indent=2) + "\n")
+    passed_count = sum(row["passed"] for row in results)
+    failed_count = len(results) - passed_count
+    summary = {"source_stamp": STAMP, "seeds": list(range(len(results))),
+               "passed": passed_count, "failed": failed_count, "results": results}
+    (OUT / "summary.json").write_text(json.dumps(summary, indent=2) + "\n")
+    print(f"[L139SeedSweepSummary] passed={passed_count}/16 failed={failed_count} "
+          f"status={'PASS' if len(results)==16 and failed_count==0 else 'FAIL'}")
+    return 0 if len(results) == 16 and failed_count == 0 else 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())