AutoGenAI 0.1.0

• Initial provider-agnostic optimization framework.
• Added joint prompt-provider-generation benchmarking.
• Added prompt evolution, Pareto optimization, budget and latency constraints, robustness testing, adaptive routing, and ensemble tools.
• Added deterministic offline mock providers, tests, and vignettes.
• Added explicit stats::runif() namespace import and CRAN-friendly documentation formatting.