Record Jetty log output in files using log4j

[jsharkey13]

These changes will persist the Jetty log output that was previously only going to the Docker container console.
Further investigation suggests that we may not have seen any of these logs in the recent outage, but this way we can at least compare historic output to be sure.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 36.79%. Comparing base (74ad253) to head (ae50783).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #745   +/-   ##
=======================================
  Coverage   36.79%   36.79%           
=======================================
  Files         540      540           
  Lines       23679    23674    -5     
  Branches     2832     2832           
=======================================
  Hits         8712     8712           
+ Misses      14089    14084    -5     
  Partials      878      878           

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