fix: DIA-1942: Fix Information exposure through an exception

[hakan458]

Potential fix for https://github.com/HumanSignal/label-studio/security/code-scanning/788

To fix the problem, we should log the detailed exception message on the server and return a generic error message to the user. This approach ensures that sensitive information is not exposed to external users while still allowing developers to access the necessary details for debugging.

• Modify the except block to log the exception using the logger and return a generic error message to the user.
• Ensure that the logging captures the full stack trace for debugging purposes.

Suggested fixes powered by Copilot Autofix. Review carefully before merging.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.30%. Comparing base (f758c99) to head (7170725).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #7258      +/-   ##
===========================================
- Coverage    77.31%   77.30%   -0.01%     
===========================================
  Files          188      188              
  Lines        14581    14582       +1     
===========================================
  Hits         11273    11273              
- Misses        3308     3309       +1     

Flag	Coverage Δ
pytests	77.30% <100.00%> (-0.01%)	⬇️

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