Add support for provisioning and rebuilding via interface

internal/wisski/ingredient/barrel/composer/name.go

@@ -0,0 +1,14 @@
+package composer
+
+import "strings"
+
+// ModuleName extracts the module name from a specification.
+// If the module name cannot be found, returns the string unchanged
+func ModuleName(spec string) string {
+	_, name, found := strings.Cut(spec, "/")
+	if !found {
+		return spec
+	}
+	name, _, _ = strings.Cut(name, ":")
+	return name
+}