feat(test): enhance support for immutable tables and improve error handling

Author: roxblnfk

src/test/_index.yaml

@@ -12,7 +12,7 @@ entries:
       - time
     imports:
       base_registry: :registry
-
+    
   # wippy.test:test
   - name: test
     kind: library.lua
@@ -22,3 +22,4 @@ entries:
     modules:
       - time
       - json
+