[youngung]

Summary

• Add a GitHub Actions workflow that generates dimensions and builds the stand-alone executable with GNU Fortran.
• Add standard-library tests for default and custom dimension generation, and document how to run them.

Validation

• make test-python
• Generated dimensions and built with make -j2 evpsc using GNU Fortran.

The workflow checks compilation but does not yet run a stand-alone simulation; a complete simulation input fixture is not included.