Build and push Docker images when version tags (v*) are pushed,
enabling automated image builds on releases.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Triggers on push to main and uses the shared Release workflow
from unboundsoftware/shared-workflows.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>