A numerical study of radius update rules in trust-region algorithms

Experimental archives for the numerical study of trust-region radius update rules (Part III). Seven campaigns run with TrustRegionRadius.jl v0.1.0 under Julia 1.12.1 on CUTEst problems. Each archive contains one JLD2 record per run, together with experiment_config.toml, which records the rules, models, subsolvers, solver parameters and full provenance (git commit, Julia version, project and manifest hashes), and experiment_summary.md. Instructions for re-running each campaign are in benchmark/REPRODUCE.md in the source repository.