Builders, the artifact store's tools and distribution read and write the registry reference form through the registry clients' reference package, and name the sweep seat from its contract (ADR 0634 §4, S-8; issue 1966)

catalogue's SeatReference, InRegistrySeat, Routed, Recorded, InArtifactStore and ArtifactSweepSeat leave mesh-sdk;
each package gives the two registry seats' names from their contracts (or the build step's copies of them).

Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i

modules/mesh-build-node/cmd/mesh-build-node/build.go

@@ -18,9 +18,9 @@ import (
 	"strings"
 
 	"git.novox.be/novox/mesh-catalog/modules/mesh-build-go/buildstep"
+	artifactref "git.novox.be/novox/mesh-delivery/contracts/go/clients/containerimageregistryclient/reference"
 	builds "git.novox.be/novox/mesh-delivery/modules/mesh-delivery-builder/builds"
 	sdkstep "git.novox.be/novox/mesh-delivery/sdk/buildstep"
-	"git.novox.be/novox/mesh-sdk/go/catalogue"
 )
 
 // Out is where a bundle's compiled files go in the module's directory (builder toolchain.go:118).
@@ -157,7 +157,7 @@ func (m *Module) build(ctx context.Context, args map[string]any) (any, error) {
 	})
 	sort.Strings(files)
 	return BuildResult{Workspace: workspace, Module: module, Artifact: a.Name, Digest: digest, Bytes: len(archive),
-		Reference: catalogue.SeatReference(buildstep.ArtifactSeat, a.module, a.Name, digest), Files: files}, nil
+		Reference: artifactref.SeatReference(buildstep.ArtifactSeat, a.module, a.Name, digest), Files: files}, nil
 }
 
 // bundle makes every entrypoint and every launcher ONE file, with esbuild (builder.go:1971-2039): an entrypoint is

modules/mesh-build-node/cmd/mesh-build-node/store_integration_test.go

@@ -20,9 +20,10 @@ import (
 	"github.com/distribution/distribution/v3/registry/handlers"
 	_ "github.com/distribution/distribution/v3/registry/storage/driver/inmemory"
 
+	"git.novox.be/novox/mesh-catalog/modules/mesh-build-go/buildstep"
+	artifactref "git.novox.be/novox/mesh-delivery/contracts/go/clients/containerimageregistryclient/reference"
 	registry "git.novox.be/novox/mesh-delivery/contracts/go/seats/containerimageregistry"
 	builds "git.novox.be/novox/mesh-delivery/modules/mesh-delivery-builder/builds"
-	"git.novox.be/novox/mesh-sdk/go/catalogue"
 )
 
 // realStore starts the artifact store's own program (the distribution registry, modules/distribution) inside this
@@ -105,11 +106,11 @@ func TestADoneBundleResolvesInARealArtifactStore(t *testing.T) {
 	if _, err := builds.EncodeBuilderBuild(done); err != nil {
 		t.Errorf("the done key the builder would write is refused: %v", err)
 	}
-	if _, _, ok := catalogue.InRegistrySeat(r.Reference); !ok || !strings.HasSuffix(r.Reference, "@"+r.Digest) {
+	if _, _, ok := registryForms.InRegistrySeat(r.Reference); !ok || !strings.HasSuffix(r.Reference, "@"+r.Digest) {
 		t.Fatalf("the reference %q is not in the form a registry seat answers", r.Reference)
 	}
 	// Read as a node-engine reads it: the seat's reference routed to the store's address.
-	resp, err := http.Get(catalogue.Routed(r.Reference, addr))
+	resp, err := http.Get(registryForms.Routed(r.Reference, addr))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -120,3 +121,6 @@ func TestADoneBundleResolvesInARealArtifactStore(t *testing.T) {
 		t.Errorf("the store answered %s with bytes of sha256:%x for %s", resp.Status, sum, r.Reference)
 	}
 }
+
+// registryForms reads a reference of the registry form, the two seats' names from the build step (their contracts).
+var registryForms = artifactref.Seats{Image: buildstep.ImageSeat, Object: buildstep.ArtifactSeat}

modules/mesh-build-node/go.mod

@@ -3,6 +3,7 @@ module meshbuildnode
 go 1.26.0
 
 require (
+	git.novox.be/novox/mesh-delivery/contracts/go/clients/containerimageregistryclient v0.0.0-00010101000000-000000000000
 	git.novox.be/novox/mesh-delivery/contracts/go/seats/nodebuildnode v0.0.0-00010101000000-000000000000
 	git.novox.be/novox/mesh-delivery/modules/mesh-delivery-builder/builds v0.0.0-00010101000000-000000000000
 	git.novox.be/novox/mesh-delivery/sdk v0.0.0-00010101000000-000000000000