wip: cave planner squash-merged into wip/combined (L173, RED - not for main)

Five conflicts resolved (CURRENT-STATE, ResolvedLayoutInternal.h, StreamBenchmarkHeadless.cpp,
StreamBenchmarkPipeline.h, WorldAssemblyPrototype.h) keeping liminal + cave planner; L156 band fit only; evaluator v239
with v239 baselines (18/18 Clang/GCC W1/W8/W12). Fast tier FAILS (FI upper arrival: 40 unsupported chamber samples,
10 chamber-floor shell violations); TN and VS composed sweeps 0/16 (passage, seam, shell gates). Living plane loads at
PostConfigInit (UE smoke passes). Source/: VoxelForgeCoreAdapter.cpp; VoxelForge.uplugin.

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

Standalone/Research/WorldAssemblerM3/Linux135/RunL135SeedSweep.py

@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+"""Run the L135 composed cave-passage and tile-seam audits for fixed seeds."""
+from __future__ import annotations
+
+import json
+import re
+import subprocess
+import sys
+import time
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[4]
+OUT = ROOT / "Saved/Linux/l135"
+BIN = OUT / "bin/VoxelForgeCoreHeadless-clang-l135"
+DATA = ROOT / "Standalone/data/owner_world.json"
+REQUIRED = {
+    "passage": re.compile(r"^\[ResolvedPassageAuditSummary\].*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),
+    "route_negative_control": re.compile(
+        r"^\[TunnelNetworkBlockedRouteControl\].*expected=FAIL status=PASS$", re.M),
+}
+
+
+def main() -> int:
+    seeds = [int(value) for value in sys.argv[1:]] or list(range(16))
+    if not BIN.is_file() or not DATA.is_file():
+        raise SystemExit("missing L135 headless binary or owner fixture")
+    results = []
+    for seed in seeds:
+        log = OUT / f"optimized-seed{seed}.log"
+        layout = OUT / f"optimized-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",
+            "--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:
+            result = subprocess.run(command, cwd=ROOT, stdout=output,
+                stderr=subprocess.STDOUT, check=False, timeout=1740)
+        content = log.read_text(encoding="utf-8", errors="replace")
+        checks = {name: bool(pattern.search(content)) for name, pattern in REQUIRED.items()}
+        blocked_controls = re.findall(
+            r"^\[ResolvedPassageBlockedControl\].*detected=true$", content, re.M)
+        checks["three_blocked_controls"] = len(blocked_controls) == 3
+        passed = result.returncode == 0 and all(checks.values())
+        row = {"seed": seed, "exit": result.returncode, "passed": passed,
+            "checks": checks, "blocked_controls": len(blocked_controls),
+            "elapsed_s": round(time.monotonic() - started, 3),
+            "log": str(log.relative_to(ROOT)), "layout": str(layout.relative_to(ROOT))}
+        results.append(row)
+        print("[L135SeedSweep] " + json.dumps(row, sort_keys=True), flush=True)
+        if not passed:
+            raise SystemExit(f"seed {seed} failed a composed audit; see {log}")
+    summary = {"seeds": seeds, "passed": len(results), "failed": 0,
+        "results": results}
+    (OUT / "optimized-seed-sweep.json").write_text(
+        json.dumps(summary, indent=2) + "\n", encoding="utf-8")
+    print(f"[L135SeedSweepSummary] passed={len(results)}/{len(seeds)} status=PASS")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())