Chore/doctest admin (#489)

* chore: Complete 100% doctest coverage for admin.py

- Add comprehensive doctest examples for all admin route functions
- Include async/await patterns with proper mocking
- Cover success paths, error conditions, and edge cases
- Achieve 100% doctest coverage milestone for admin module

Signed-off-by: Manav Gupta <[email protected]>

* chore: Complete 100% doctest coverage for admin.py (#486)

- Add comprehensive doctest examples for all admin route functions
- Include async/await patterns with proper mocking
- Cover success paths, error conditions, and edge cases
- Achieve 100% doctest coverage milestone for admin module

Signed-off-by: Manav Gupta <[email protected]>

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Signed-off-by: Manav Gupta <[email protected]>
Co-authored-by: Manav Gupta <[email protected]>

Author: crivetimihai