Create dedicated ci-build node pool (L4-1-24G, €0.75/hr) replacing
H100 (€3.50+/hr) for CI builds. H100 reserved for training only.
- Add ci-build pool to Terraform (L4-1-24G, scale-to-zero, fr-par-2)
- Update GitLab Runner to target ci-build pool with L4-sized limits
- Change CUDA_COMPUTE_CAP from 90 (H100) to 89 (L4) in CI
- Dockerfile.training keeps CUDA_COMPUTE_CAP=90 for H100 training
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>