Verify repository health: linting and test execution

[Copilot]

Executed repository quality checks to verify codebase health.

Verification Performed

• Linting: Black formatter validation via nox -s lint (14 files)
• Tests: Unit test suite execution (3 tests in server_test.py and utils_test.py)
• Build: Package installation in editable mode with dev dependencies
• Imports: Module and entry point validation

All checks passed successfully. Repository is in healthy state.

Original prompt

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