OPENMODEL_API_KEY=om-2usoeJJ64DiGUPDp87eVQBHa8VQHup1mj2FWZ2j
OPENMODEL_API_URL=https://api.openmodel.ai
OPENMODEL_MODEL=deepseek-v4-flash

PORT=3000
MASTER_API_KEY=sk-unlimited-deepseek-v4-flash-by-xuan-hieu

RATE_LIMIT_WINDOW_MS=60000
RATE_LIMIT_MAX_REQUESTS=60000

REQUEST_TIMEOUT_MS=300000

# Response Cache — host 4GB RAM, cache thoải mái
CACHE_ENABLED=true
CACHE_TTL_MS=3600000
CACHE_MAX_ITEMS=50000

LOG_DIR=./logs

# Token pricing (VND per 1M tokens) — giá DeepSeek V4 Flash chuẩn
TOKEN_COST_CACHE_HIT_INPUT_VND=71
TOKEN_COST_CACHE_MISS_INPUT_VND=3560
TOKEN_COST_OUTPUT_VND_PER_1M=7120
