# Runtime
NODE_ENV=production
PORT=3000
STATE_FILE_PATH=/data/state.json
LOG_LEVEL=info
APP_BASE_URL=https://xartaudio.example.com

# Webhook secrets
X_WEBHOOK_SECRET=replace-me
POLAR_WEBHOOK_SECRET=replace-me

# X API
X_BEARER_TOKEN=replace-me
X_BOT_USER_ID=replace-me

# Polar API
POLAR_ACCESS_TOKEN=replace-me
POLAR_SERVER=production
POLAR_PRODUCT_IDS=prod_123

# TTS (OpenAI-compatible)
TTS_API_KEY=replace-me
TTS_BASE_URL=
TTS_MODEL=gpt-4o-mini-tts
TTS_VOICE=alloy

# S3-compatible object storage
S3_BUCKET=replace-me
S3_REGION=us-east-1
S3_ENDPOINT=
S3_ACCESS_KEY_ID=replace-me
S3_SECRET_ACCESS_KEY=replace-me
S3_SIGNED_URL_TTL_SEC=3600

# Credit policy
BASE_CREDITS=1
INCLUDED_CHARS=25000
STEP_CHARS=10000
STEP_CREDITS=1
MAX_CHARS_PER_ARTICLE=120000

# Rate limits (requests per minute)
WEBHOOK_RPM=120
AUTH_RPM=30
ACTION_RPM=60