fix: cascade bug fixes and input validation

feat: more aggressive cascade - triggers at step 3, second wave at step 8, medium also cascades

fix: apply all bug fixes and proper stdout format

fix: correct bugs in grading.py, rewards.py, inference.py

Update

Update: inference, app, config, environment

Fix: add uv.lock, openenv dependency, main(), and scripts entry point

Fix: make all endpoints accept None body

Add grader endpoint and safe_score to all scores

Initial commit of cloud-alert-triage