planner: four-strate owner plan spawns (L66); pinned 2-strate regression fixture

- Core caps each passage mouth reach to its own strate's usable content band (owner
  DA_Strate1 exports ReachMax=5000 owner voxels, which put the SW->FI lower mouth 79.5 m
  below FI, inside TN).
- Unreal adapter: SW route search keeps the old 64 m candidates first, then a bounded
  single-mouth search with shorter lengths; logs candidate/rejection counts.
- Internal-chain passage floor/support tweaks (only with >2 strates): ripple 1-2 4.78->2.90 cm,
  2-3 3.57->0.10 cm. Interfaces still 0/3 walkable (59/3/2 unsupported).
- verify.py: legacy tiers use Standalone/data/regression/owner_world_2strate_l61.json; new
  four-strate stage reads its expectations from owner_world.json (currently red on interfaces).
- Unreal trace L14 vs HEAD, same assets (16-chunk FlatPlain): 12.20 vs 12.56 worker-s; no x2.

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

Standalone/Tools/verify/README.md

@@ -10,10 +10,10 @@ taskset -c 0-11 prlimit --as=6442450944 -- timeout 1740s python3 -B Standalone/T
 taskset -c 0-11 prlimit --as=6442450944 -- timeout 1740s python3 -B Standalone/Tools/verify/verify.py full
 ```
 
-`fast` checks only canonical `Standalone/data/owner_world.json`, asserts FI Style 2 and SW Style 1 from resolved snapshots, runs passage wall/floor ripple and coverage gates, the adjacent-profile step limit, W1/W12 hash comparisons, and LOD0 ring profiles with the L30/L31 controls. It also exercises stale-source, style-mislabel, black-capture, historical ripple, and L38 step controls.
+`fast` runs legacy owner regressions against the pinned two-strate fixture at `Standalone/data/regression/owner_world_2strate_l61.json`, including resolved styles, passage wall/floor ripple and coverage gates, adjacent-profile step, W1/W12 hashes, and LOD0 ring profiles with the L30/L31 controls. It also checks the live four-strate `Standalone/data/owner_world.json`: generator and resolved-style maps are read from that export, then strict layout, transitions, per-strate deterministic generation, arrival-to-departure routes, and spawn costs are audited. The tier also exercises stale-source, style-mislabel, black-capture, historical ripple, and L38 step controls.
 
-`medium` adds the Clang style-override matrix, transitions, route/proof audits, LOD0–8 rings, and canonical-owner captures, shape, near/overview crease, and fragment checks. Run `medium` before `full`. Full reuses that evidence only when the source stamp, verification-tool hashes, binaries, inputs, logs, and audit-script hashes still match; otherwise it reruns the Clang medium work. It adds the owner/style/transition/proof matrix with GCC, the 30-cell determinism matrix, and five interleaved L36/L39 cost pairs per recipe. The final captures stay in the L39 output directory.
+`medium` adds the Clang style-override matrix, transitions, route/proof audits, LOD0–8 rings, and pinned two-strate owner captures, shape, near/overview crease, and fragment checks. Run `medium` before `full`. Full reuses that evidence only when the source stamp, verification-tool hashes, binaries, inputs, logs, and audit-script hashes still match; otherwise it reruns the Clang medium work. It adds the owner/style/transition/proof matrix with GCC, the 30-cell determinism matrix, and five interleaved L36/L39 cost pairs per recipe. The final captures stay in the L39 output directory.
 
 `BuildLinux.sh` hashes a sorted manifest of Core inputs, standalone sources and generated wrappers, build files, and optionally the Unreal adapter when `VOXELFORGE_INCLUDE_UNREAL_ADAPTER=1`. The manifest hash is compiled into the headless and offscreen binaries and printed before any other runtime log line. Each tier probes every available built executable at startup and re-probes it at completion, rejecting stale stamps or binary changes. Summaries store tool hashes, binary and JSON SHA-256 values, resolved recipe/style/layout identity, commands, elapsed time, and audit-script hashes.
 
-Each tier stops at its first failed gate. Every process is limited to CPUs 0–11 and 6 GiB of address space; individual build and audit processes time out at 30 minutes. Summary files are `fast-summary.json`, `medium-summary.json`, and `full-summary.json`.
+Medium and full stop at their first failed gate. Fast defers a four-strate stage failure until after it has collected the pinned two-strate regression evidence. Every process is limited to CPUs 0–11 and 6 GiB of address space; individual build and audit processes time out at 30 minutes. Summary files are `fast-summary.json`, `medium-summary.json`, and `full-summary.json`.