chore: sync local CyberSecurity_OWASP with HF Space history

feat: enhance CyberSecurity_OWASP observation model with scenario prompt, improve GRPO batch configuration validation, and add scenario grouping for adaptive difficulty curriculum

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

feat: implement RL environment server with training infrastructure and Modal integration

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

feat: implement core RL training infrastructure and architecture documentation

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

Initial commit

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