Use validator's API_KEY and API_BASE_URL from environment

Fix inference.py to handle missing API key and exit with code 0

Complete restructuring for hackathon validator compliance with server package, uv.lock, and openenv-core

Add pyproject.toml for validator

Fix template loading - update Dockerfile and app.py

Add interactive web dashboard for testing and evaluation

Add root endpoint for HF Spaces compatibility

Add HF Spaces metadata to README

Add Email Triage OpenEnv environment - production-ready with 3 graded tasks and Flask API

initial commit