Update GET /record to return records in the order they were requested

[liam-lloyd]

Currently, the order in which GET /record returns records is undefined. This remains the API contract, but as a hotfix this commit updates the endpoint to return them in the order they're listed in the request, because that is what our web app currently expects. This change should be reverted when the web app no longer relies on this behavior.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.22%. Comparing base (7c45bc7) to head (1c4cfc6).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #536   +/-   ##
=======================================
  Coverage   98.22%   98.22%           
=======================================
  Files         101      101           
  Lines        2416     2422    +6     
  Branches      400      402    +2     
=======================================
+ Hits         2373     2379    +6     
  Misses         39       39           
  Partials        4        4           

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