logs: A basic javascript log viewer

[ddustin]

A basic javascript tool for filtering through large CLN log files.

Changelog-Added: A new tool for rendering CLN log files in the browser.

[vincenzopalazzo]

I feel that this should be a separate tool in a separate repository?

In addition, there is a better way to collect tools that is by using https://github.com/vincenzopalazzo/cln-opentelemetry

It is supporting grafana and loki, an example of setup could be https://github.com/grafana/docker-otel-lgtm

[ddustin]

This is a low cost solution for CLN developers (it's just a single javascript file).

Doing CLN development I'm often looking through logs trying to figure out what happened. This simple tool allows me to easily dig through the flow of what occured -- separating messages by daemon, type, channel, or regex search term.

Similar to start_regtest.sh, it is another useful tool to put into the contrib folder and adds very little (perhaps none?) repo maintenance overhead.