Capture mesh-catalog at feat/r4g (2246ccc4) with the templates its manifests name and its predefined.json, and lay the copy out as a repository's root

The catalogue's manifests moved their content into template files and fall back to predefined keys, so a copy of
module.json alone no longer passes the catalogue's own check; the bus's Dockerfile is gone from the catalogue.

testdata/beside/CAPTURED

@@ -7,7 +7,7 @@ The copy carries the catalogue's private details: domains, first names in module
 private addresses. That is acceptable while mesh-controller is private; if it ever goes public, this copy is
 a second place to clean besides the catalogue itself.
 
-mesh-catalog  e0bc919d4945bb5f13f971f74643a0b714cf45da  modules/*/module.json, modules/nats/Dockerfile
+mesh-catalog  2246ccc492e59579a140752e6f574b2121d296af  modules/*/module.json, modules/*/files, modules/*/templates, predefined.json
 mesh-host     9d9e3a46c4f5943cfffb413d962ce48b75e2fd39  examples/foundation-first-node.lock
 mesh-sdk      9205222a98bb0d460e3a827d69d2ff640c500b47  conformance/events/module-event.json
 
@@ -16,7 +16,8 @@ To move them, from this repository's root, with the two repositories checked out
   rm -rf testdata/beside/mesh-catalog testdata/beside/mesh-host
   mkdir -p testdata/beside/mesh-catalog testdata/beside/mesh-host
   git -C ../mesh-catalog archive <commit> modules | tar -x -C testdata/beside/mesh-catalog --wildcards \
-    'modules/*/module.json' 'modules/nats/Dockerfile'
+    'modules/*/module.json' 'modules/*/files' 'modules/*/templates'
+  git -C ../mesh-catalog show <commit>:predefined.json > testdata/beside/mesh-catalog/predefined.json
   find testdata/beside -name module.json -exec mv {} {}.captured \;
   git -C ../mesh-host archive <commit> examples/foundation-first-node.lock | tar -x -C testdata/beside/mesh-host