feat: enhance scenario authoring and caching mechanisms, update action submission terminology, and improve reward configuration for CyberSecurity_OWASP environment

feat: update training configuration and documentation for Modal execution, including new model integration and enhanced tracking utilities

feat: integrate Trackio for experiment tracking and add Modal training infrastructure with environment and test utilities.

feat: implement core RL training infrastructure, including GRPO training, evaluation utilities, custom environments, and Modal-based execution scripts.