PORT=3000
STORAGE_DIR=./storage
DB_HOST=127.0.0.1
DB_USER=convert_user
DB_PASSWORD=change_me
DB_NAME=file_converter
MAX_FILE_SIZE_MB=100
RETENTION_HOURS=1
WORKER_POLL_INTERVAL_MS=1500
WORKER_CONCURRENCY=3
RATE_LIMIT_MAX_JOBS=20
RATE_LIMIT_WINDOW_MINUTES=10
CALIBRE_PATH=./calibre/ebook-convert