Wiz Red Agent Found Vulnerability in Snowflake's Repo That GitHub Copilot Autofix Missed

Concrete incident: Wiz Red Agent autonomously found and exploited a GitHub Actions vulnerability in Snowflake's repo that GitHub Copilot Autofix missed. Reinforces pattern of AI coding assistants missing critical flaws while other AI agents exploit them. Includes quotes from Wiz's security head and a former CISO, making it citeable. Ties into vibe coding risks and AI-vs-AI battlefield. Newly added.