feat: implement multi-agent incident response environment with adversarial red teaming and adaptive Theory of Mind coordination

fix: simplify main() block for openenv validate compatibility

Major: Self-evolving RL engine + OpenAI-compatible API simplification

Fix NoneType guard in _calculate_investigation_completeness

Major: 6-task environment with advanced grading and reward shaping

Fix 422 errors: add stateful HTTP endpoints and action sanitization

Add .gitignore, clean up pycache

Initial commit: Incident Response Triage Environment for OpenEnv