Publish structured task grader metadata

Restore submission-38 task validation surface with proxy-safe inference

Normalize task-id aliases across reset and grading paths

Harden manifest task schema and canonical grader paths

Harden deep-validator grader discovery compatibility

Add deterministic validator-safe grader mode

Match OpenEnv runtime health and MCP contracts

Maximize deep-validator grader compatibility

Add root endpoint for platform probe compatibility

Harden grader compatibility for deep validators

Stabilize task grader discovery paths for Phase 2 validation

Fix validator discovery for Phase 2: point openenv.yaml back to tasks.X.grader:grade

fix: rename 'final_score' to 'score' in inference output payload

fix: grader functions must return float, not dict

feat: implement full OpenEnv spec compliance

fix openenv validate errors: added uv.lock, app main, and entry point

Fix OpenEnv multi-mode deployment requirements

fix: accept empty body on POST /reset (openenv checker compatibility)

Hackathon submission: Guardian OpenEnv