# Backend
PORT=8787
OPENAI_API_KEY=
OPENAI_BASE_URL=https://api.openai.com/v1
OPENAI_MODEL=gpt-4o-mini
OPENAI_TEMPERATURE=0
OPENAI_MAX_OUTPUT_TOKENS=700
DATA_DIR=./data
TZ_FALLBACK=Europe/Moscow

# Frontend (optional, usually proxy to backend)
VITE_API_BASE=/api