This PR adds a CLI flag to enable redacting network headers in the same
way they are redacted in DevTools. Note that sometimes it might prevent
the agent from properly analysing network issues. Pass
`--redact-headers=false` to revert to the previous behavior.
LLM are trained to know the common status code so we can rely on that
when displaying the status code and fall back to text in case of errors
or pending reponse.
Nikolay Vitkov