Add localization columns to obs and responses endpoint

[SAKavli]

Issue
Resolves #12631

• PR title captures the intent of the changes, and is fitting for release notes.
• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.
• Make sure unit tests pass locally after every commit (git rebase -i main --exec 'just rapid-tests')

When applicable

• When there are user facing changes: Updated documentation
• New behavior or changes to existing untested code: Ensured that unit tests are added (See Ground Rules).
• Large PR: Prepare changes in small commits for more convenient review
• Bug fix: Add regression test for the bug
• Bug fix: Add backport label to latest release (format: 'backport release-branch-name')

[SAKavli]

Does this call for another test, or should the edited tests be coverage enough for this behavior?

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.65%. Comparing base (cf69f75) to head (82eae6f).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #12730      +/-   ##
==========================================
- Coverage   90.65%   90.65%   -0.01%     
==========================================
  Files         432      432              
  Lines       30168    30175       +7     
==========================================
+ Hits        27349    27354       +5     
- Misses       2819     2821       +2     

Flag	Coverage Δ
cli-tests	37.19% <100.00%> (-0.06%)	⬇️
gui-tests	68.56% <100.00%> (-0.02%)	⬇️
performance-and-unit-tests	77.04% <100.00%> (-0.01%)	⬇️
test	37.46% <0.00%> (-0.05%)	⬇️

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[codspeed-hq]

CodSpeed Performance Report

Merging this PR will not alter performance

_{Comparing SAKavli:add-localization-columns-to-obs-and-responses-endpoint (82eae6f) with main (988451d)}

Summary

✅ 23 untouched benchmarks

[eivindjahren]

👍

[xjules]

One comment. Have you double checked whether the observations are actually in the field?
Update: as discussed you set gen_obs to null and summary_obs too.

[xjules]

If it is a bug-fix maybe it should contain the backport label to current testing?

[SAKavli]

Thanks for the feedback, Julius!

We decided to leave all test data to None for localization columns, as these values should make sense with the dimensions of the respective field. @xjules will test this in another PR and find some appropriate values for localization.

This should definitely be backported to February release - thanks!

[scout-team-app]

Successfully created backport PR for version-19.0:

• [Backport version-19.0] Add localization columns to obs and responses endpoint #12733