feat(grader): add task-aware grading with new metrics and composite scoring

fix(inference): refine scaling and rerouting rules and action behavior

model changes

consolidate

Enhance Kubernetes executor and deployment configurations

chore(kubernetes): support unbounded max replicas and enhance local setup

feat: implement Kubernetes executor for automated cluster scaling and infrastructure management

feat(curriculum): add progressive training curriculum management

feat: Add observability setup guide and integrate Prometheus and Grafana

basic of grafan, kuber, and prometheus added