Make codec shape authority compile-time and fixed

crates/lazaret-storage-catalog/tests/catalog.rs

@@ -334,6 +334,10 @@ struct UnknownMetadata<'a> {
     schema_version: u32,
 }
 
+impl lazaret_core::records::SchemaType for UnknownMetadata<'_> {
+    const NAME: &'static str = "test::UnknownMetadata";
+}
+
 #[test]
 fn unknown_version_refuses_before_rows() {
     let fixture = Fixture::new();