Resolve "Bug Fix: Fix Doctor Age Persistence"

Bug Report Template

fix(backend): save doctor age during creation

Format: fix(scope): short description Example: fix(auth): resolve token validation error

Description

This merge request fixes a bug where doctor_age was ignored during doctor creation.

Checklist

• The bug has been reproduced and confirmed.
• A clear and concise fix has been implemented.
• New tests have been added to prevent regressions.
• Existing tests are passing.

Related Issue(s)

Closes #31 (closed)