fix: make task parsing robust to string IDs for openenv task validation

fix: update inference.py output markers to match strict OpenEnv parser format and add flush=True

refactor: restructure repository for OpenEnv multi-mode deployment, moved server.py to server/app.py

fix: resolve openenv validate failure by adding uv.lock, openenv-core dependency, and server script entry point

fix: add pyproject.toml for OpenEnv multi-mode deployment validation

fix: add HF Spaces Docker metadata (sdk: docker, app_port: 7860) to README

fix: change port from 8000 to 7860 — HF Spaces Docker only exposes 7860 externally

fix: make /reset body optional so bare POST (no Content-Type/body) returns JSON not 422 HTML

fix: use Pydantic model_validate instead of unpacking with aliases to resolve Post Reset failure

feat: initial commit for email triage agent