DEEPSEEK_API_KEY=your-api-key
SERVICE_PORT=8000
DEEPSEEK_BASE_URL=https://api.deepseek.com
DEEPSEEK_MODEL=deepseek-v4-flash
DEFAULT_SYSTEM_PROMPT=You are a helpful assistant.
CHAT_DATA_DIR=data
USER_DB_PATH=data/users.db
MAX_TOOL_ROUNDS=5
MAX_TOOL_CALLS_PER_TURN=10
TOOL_TIMEOUT_SECONDS=5