[LCORE-787] Remove deprecated tests & imports in test_endpoints.py, fix mypy error

[max-svistunov]

Description

Removal of deprecated tests and imports in test_endpoints.py.

Type of change

• Refactor
• New feature
• Bug fix
• CVE fix
• Optimization
• Documentation Update
• Configuration Update
• Bump-up service version
• Bump-up dependent library
• Bump-up library or tool used for development (does not change the final image)
• CI configuration change
• Konflux configuration change
• Unit tests improvement
• Integration tests improvement
• End to end tests improvement

Tools used to create PR

Identify any AI code assistants used in this PR (for transparency and review context)

• Assisted-by: Claude Opus 4.5
• Generated by: Claude Opus 4.5

Related Tickets & Documents

• Related Issue # LCORE-787
• Closes # LCORE-787

Checklist before requesting a review

• I have performed a self-review of my code.
• PR has passed all pre-merge test jobs.
• If it is a core feature, I have added thorough tests.

Testing

• Please provide detailed steps to perform tests related to this code change.
• How were the fix/results from this change verified? Please provide relevant screenshots or results.

Summary by CodeRabbit

• Tests
  • Improved type annotations in test infrastructure for enhanced code clarity.
  • Removed deprecated test cases and streamlined test validations.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Walkthrough

Two code quality updates: first file adds type annotations to a logging method with imports, second file removes deprecated test cases and associated scaffolding from the test suite, reducing test coverage for obsolete agent retrieval APIs.

Changes

Cohort / File(s)	Summary
Type Annotation Update tests/e2e/mock_jwks_server/server.py	Added typing import and annotated *args parameter with Any type in Handler.log_message method signature.
Deprecated Test Removal tests/unit/utils/test_endpoints.py	Removed deprecated test cases for get_agent and get_temp_agent flows, eliminated associated imports and scaffolding. Added pyright ignore annotations to QueryRequest constructions without affecting runtime behavior.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Suggested reviewers

• radofuchs
• tisnik

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main changes: removing deprecated tests and imports from test_endpoints.py and fixing a mypy error, which aligns with the changeset.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

• 📝 Generate docstrings

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[tisnik]

LGTM