gtaf-runtime 0.1.1 – CI hardening & Python 3.10 compatibility

Patch release for gtaf-runtime 0.1.

This release does not change enforcement semantics or the public projection contract.
It improves packaging reliability and CI guarantees.

Highlights:

• Python 3.10 compatibility (UTC handling fix)
• CI matrix for Python 3.10 and 3.11
• Wheel-level enforce smoke test
• Release documentation alignment

Projection v0.1 contract remains unchanged.