Redesign env as incident operations workflow

Harden env isolation and proxy validation

Require proxy env vars for submission inference

Finalize submission checks and long inference output format

Align inference output with strict hackathon contract

Add grounded optimization modes and wire dedicated optimizer module

Improve citation guidance, preserve prompt structure, harden baseline, and validate inference

Fix grounding truthfulness, baseline fallback honesty, docs, and validator coverage

Redesign corpus and tasks around support triage and incident response

Initial OpenEnv submission