Align Python formatting with CI Black output to fix failing lint job

[Copilot]

The lint GitHub Actions job failed in CI despite passing on local dev due to Black formatting drift across environments. This PR normalizes formatting to the CI-expected Black output so the workflow no longer fails on black --check ..

• Root cause

  • CI (Run Black (Python)) reported reformat requirements in Python files that were not consistently surfaced locally.

• Changes applied

  • Re-ran Black-compatible formatting and committed only the Python files flagged by CI formatting checks:
    • auth.py
    • examples/api_example.py
    • database.py (also flagged in repo reproduction environment)

• Scope

  • No behavioral or API changes.
  • Formatting-only edits to eliminate environment-dependent lint failures.

black --check .
# before: files would be reformatted
# after: clean in CI-consistent formatting

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud