test-nikola-2-mcp-server

The server includes a `D402PaymentMiddleware` for payment verification, enhancing economic security. However, it configures CORS to `allow_origins=['*']`, `allow_methods=['*']`, and `allow_headers=['*']`, which is overly permissive and generally not recommended for production environments as it can expose the API to unauthorized cross-origin requests. Environment variables for sensitive data like `MCP_OPERATOR_PRIVATE_KEY` are used, which is good practice, but the `run_local_docker.sh` script generates *temporary* keys for local testing, requiring users to ensure proper, secure key management for production deployment. No direct use of `eval` or `exec` with untrusted input was found.