[P] VizPy: DSPy-compatible prompt optimizer that learns from failures automatically.

Hey everyone! Happy to share something we've been building - VizPy, a DSPy-compatible prompt optimizer that learns from your failures automatically, no manual prompt tweaking needed. Two methods depending on your task: - ContraPrompt mines failure-to-success pairs to extract reasoning rules. Great for multi-hop QA, classification, compliance. We're seeing +29% on HotPotQA and +18% on GDPR-Bench vs GEPA. - PromptGrad takes a gradient-inspired approach to failure analysis. Better for generation tasks and math where retries don't converge.