By: Kaapo Seppänen <seppanenkaapo@gmail.com>
correct three-loop thermal reference phases Flip the ten approved imaginary reference signs in the finite-temperature and cold-dense three-loop inspect benchmarks to match the target i^L convention. Update the two phase comments. Preserve every magnitude, tolerance, sampling point and two-/four-loop/integrated reference. Validation: both affected integration tests pass all sixteen benchmark points with fresh evaluators. Formatting, cargo check, clippy and an independent exact-diff audit pass. User prompt: Ok, now you can apply the[ten verified three-loop sign corrections](/tmp/gammaloop-thermal-phase-proposal-20260908.md), keeping magnitudes and tolerances unchanged.