Description: The same appointments can be added to the same patient
Steps to reproduce: Add appointment using "addappt -IC S1234567Z -D 25/06/2025 00:00" multiple times
Expected: Same appointments should not be allowed to added multiple times
Actual: The same appointments are be added
Screenshots:

Description: The same appointments can be added to the same patient
Steps to reproduce: Add appointment using "addappt -IC S1234567Z -D 25/06/2025 00:00" multiple times
Expected: Same appointments should not be allowed to added multiple times
Actual: The same appointments are be added
Screenshots: