- Refine `decode_struct` to handle data parsing and error messages
- Enhance `should_skip_field_decode` to cover more skip attribute variations
- Update constants and tests related to struct names
- Adjust `decode_value` to better handle optional types and existing keys
- Modify `decode_struct` to skip optional fields during decoding
- Change action name format from `obj.verb` to `verb.obj`
- Update decoder to look for `define.obj` or `configure.obj`
- Modify encoder export to use the new `define.obj` prefix
- Update all test constants and scripts to the new syntax
- Make Remark struct public for test visibility
