Take the catalogue's composition rules into the node-engine

ADR 0593 §7: the composer with its refusals leaves mesh-sdk, so mesh-sdk
carries no composition rule. The catalogue functions only the
node-engine's composition reaches (Resolve, Resolution's Compose,
Declaration, DataItems, LeftOut, Rules and the rest, the settings,
placeholder and template refusals, the rendering helpers) are copied
with their tests into internal/compose/resolution; a method of a
mesh-sdk shape becomes a function taking it first. The composition
calls its own copies, and the captured catalogue its tests read lives
here now, shared by mesh-compose's tests.

Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL

testdata/beside/mesh-catalog/modules/supabase/files/functions-env.env

@@ -0,0 +1,6 @@
+JWT_SECRET=${secret:jwt}
+SUPABASE_URL=http://supabase-kong:8000
+SUPABASE_ANON_KEY=${secret:anon-key}
+SUPABASE_SERVICE_ROLE_KEY=${secret:service-role-key}
+SUPABASE_DB_URL=postgresql://postgres:${secret:postgres}@supabase-db:5432/postgres
+VERIFY_JWT=false