Managed Transforms: templated HTTP header modifications

Introduced Managed Transforms as a simplified interface for common HTTP header modification use cases, building upon existing Transform Rules. This feature offers one-click solutions for adding bot management headers (bot score, JA3 hash) and security headers (HSTS, CSP, Permission-Policy). It aims to reduce user friction by packaging frequently used Transform Rule configurations into easily accessible toggles, thereby improving operational efficiency, security, and developer experience.