Adding new feature to capture Network

[KelvinJais]

Hi,
Loved using rodney. Used it for a scraping project of mine and adding network capture to rodney helped AI to scrape network request for the data I need.
Command set can look something like this

1. rodney netwatch [--page <index>] [--filter <glob>] [--method <m>] [--status <code|range>] [--body none|text|base64] [--max-body-bytes <n>] [--redact]
   Streams live tab-scoped network events as NDJSON to stdout until Ctrl+C.

2. rodney netlog [file.ndjson] [--page <index>] [--duration <seconds>] [--filter <glob>] [--body none|text|base64] [--max-body-bytes <n>] [--redact]
   Records tab-scoped events to NDJSON file and exits on timeout/Ctrl+C.

If this sounds useful, I’d be happy to open a PR with implementation and docs