refactor: resolved metre layout is the runtime authority (L41, migration step 3); stamp covers plugin sources; R8

UVoxelStrateManager::Initialize resolves the layout width to integer micrometres before passages or
scheduling; each slot stores physical [bottom, top) bounds, transition mode/width and passage settings;
chunk indices remain a floor-based compatibility projection. The Core adapter derives interiors and L29
bands from those resolved values. verify: full-tier cost baseline is HEAD (or --baseline), tier timeout
7200 s with 1800 s per process; the source stamp now includes the plugin Source tree compiled on Linux
(it previously missed VoxelStrateManager.cpp and friends). Owner hashes identical to L37; fast, medium
and full PASS on a clean rebuild. Unreal manager/adapter edits are uncompiled on Windows.
Research R8: inventory of unit-bearing UPROPERTYs and a custom-version asset migration plan.

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

Standalone/Tools/verify/source_stamp.py

@@ -36,10 +36,18 @@ def manifest_entries(root: Path, include_unreal: bool = False) -> list[tuple[str
     if helper.is_file():
         files.add(helper)
 
+    # Plugin sources listed in core_sources.txt are compiled into the Linux binaries, and their
+    # headers are included by Core, so the whole plugin Source tree is always part of the stamp.
+    plugin_source = root / "Source" / "VoxelForge"
+    for suffix in ("*.h", "*.hpp", "*.cpp", "*.inl"):
+        files.update(plugin_source.rglob(suffix))
+    compat = standalone / "Compat"
+    for suffix in ("*.h", "*.hpp", "*.cpp"):
+        files.update(compat.rglob(suffix))
+
     if include_unreal:
-        unreal = source / "VoxelForge"
-        for suffix in ("*.h", "*.hpp", "*.cpp", "*.cs"):
-            files.update(unreal.rglob(suffix))
+        for suffix in ("*.cs",):
+            files.update(plugin_source.rglob(suffix))
 
     entries = [(path.relative_to(root).as_posix(), path.read_bytes())
                for path in files if path.is_file()]