v2.0: multi-step episodes, procedural bugs, semantic grading, sessions, 71 tests

Fix all things

feat: serve frontend at root / so it shows in HF Spaces App tab, JSON status moved to /health

feat: add interactive demo frontend at /web — no existing endpoints changed

fix: add name/difficulty to tasks, per-task [START]/[END] logs for validator

fix: stateful endpoints + score clamping for validator pass

Fix all things

fix: no exact 0.0 or 1.0 anywhere in rewards

fix: reward_range 0.05-0.95 and proper descriptions

fix: correct grader import paths

fix: tasks returns plain array for validator

Fix all things

Fix all things

fix: override /reset to accept task_id for validator

fix: force override /metadata with tasks for validator

fix: override /metadata with tasks and graders for validator

fix: add /grader and /baseline endpoints for validator

fix: add task endpoints and per-task reset for validator

fix server/app.py

fix: add root health check route

fix pyproject.toml and generate uv.lock

fix import paths for Docker

complete bug triage openenv environment