fix: changed get alert by fingerprint

[DolevNe]

Closes #5255

📑 Description

the function that gets the alert by fingerprint uses a function that fetches the last 1000 alerts (get_last_alerts)
the route should use the function get_last_alerts_by_fingerprints

✅ Checks

• My pull request adheres to the code style of this project
• All the tests have passed

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Project	Deployment	Preview	Comments	Updated (UTC)
keep	Ignored			Aug 20, 2025 1:23pm

[talboren]

@DolevNe can you add a quick unit test to make sure we don't fall here again? also - what element in the ui uses this api? lets make sure it works properly too

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 30.73%. Comparing base (74e4c9f) to head (ac2e430).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5258   +/-   ##
=======================================
  Coverage   30.73%   30.73%           
=======================================
  Files         101      101           
  Lines       11494    11494           
=======================================
  Hits         3533     3533           
  Misses       7961     7961           

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[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
2 out of 3 committers have signed the CLA.

✅ shahargl
✅ DolevNe
❌ Yarin-Shitrit
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[shahargl]

looking at the test - wouldn't it pass regardless of the fix? if I understand correctly - the bug occur when > 1000 alerts?