wip: Tunnel Network cave planner on Core caves (L134, route support still failing)

Seed + 21/47 legacy fields -> 30 compound rooms (72 primitives), 3 branches, destination chamber; mouths fixed;
8.67 deg max grade. Passage composer no longer skips native cave layers (incoming passage 21,425/21,425 open).
Open: route-support audit has 380 unsupported samples near the arrival mouth. Not for merge.

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

Standalone/Tools/verify/verify.py

@@ -538,6 +538,19 @@ def run_density_dispatch_report(runner: VerificationRunner, binary: Path) -> Non
             voxel_size_um = int(strata[0]["voxel_size_um"])
             if voxel_size_um <= 0:
                 raise ValueError(f"invalid voxel_size_um={voxel_size_um}")
+            tunnel_network = strata[2]
+            if (tunnel_network.get("generator_kind") != "TunnelNetwork"
+                    or tunnel_network.get("recipe_id") != "Core.Caves.PrimitiveField"
+                    or int(tunnel_network.get("recipe_version", 0)) != 1):
+                failures.append(f"{name}: Tunnel Network did not bind Core cave recipe v1: "
+                    f"generator={tunnel_network.get('generator_kind')} "
+                    f"recipe={tunnel_network.get('recipe_id')} "
+                    f"version={tunnel_network.get('recipe_version')}")
+            if dispatch.get(2) != ("Caves-native", "TunnelNetwork",
+                                   "Core.Caves.PrimitiveField", 1,
+                                   "FCavesFieldAdapter"):
+                failures.append(f"{name}: Tunnel Network dispatch is not native caves: "
+                                f"{dispatch.get(2)}")
         except (OSError, json.JSONDecodeError, KeyError, TypeError, ValueError) as error:
             failures.append(f"{name}: cannot classify tiles from resolved layout: {error}")
             continue
@@ -604,7 +617,8 @@ def run_density_dispatch_report(runner: VerificationRunner, binary: Path) -> Non
         failures.append("no tile centers were attributed to any bound path")
     runner.require("owner-density-dispatch-report", not failures,
         "; ".join(failures) if failures else
-        "four owner poses reported per-strate bound paths and tile-center path shares")
+        "four owner poses reported per-strate bound paths and tile-center path shares; "
+        "TN binds Core.Caves.PrimitiveField v1 through FCavesFieldAdapter")
 
 
 def run_landmark_reachability(runner: VerificationRunner,