By: ValentinHirschi <valentin.hirschi@gmail.com>
add standalone GL638 integrated UV crash reproducer [skip ci] Add one ignored integration test that runs the physical SM GL638 graph with its selected orientation and tth@NNLO process through the CLI. The embedded graph omits threshold metadata, preserves the original numerator and LMB, and uses a temporary directory with state saving disabled. The regression expects successful generation. Explicit execution currently fails with "direct local-3D residue branches cannot be empty" at branches.rs:128 from FinalIntegrandBuilder::build_direct. No production code is changed. Run: cargo nextest run -p gammaloop-api --test gl638_integrated_uv --features ufo_support --run-ignored only --retries 0 User prompt: Can you locally checkout the `raised_energy_cff_wip_optimized_phase_fix` of gammaloop, and build a quick standalone test that reproduces this crash within that branch (in the minimal and simplest setup, but still faithfully capturing that problem), and then commit+push just that new test on that branch, and finally give me the command to run that test exactly? User follow-ups: (turn the PR of that branch back to draft before you push, so as to not trigger the CI then) no it's ok, just do one orientation, no need to be more refined.