fix: Duplicate error in Employee creation in employee doctype

[NehaFathimap]

Issue description

TASK-2026-00056

1. Duplicate employee id error while creating a new employee doctype

Solution description

1. Implemented Employee ID generation logic to compute the department-wise sequence ensuring unique Employee IDs and preventing duplicates. via employee.py

Output screenshots (optional)

Screencast.from.12-01-26.01.12.19.PM.IST.webm

Areas affected and ensured

employee doctype

Is there any existing behaviour change of other features due to this code change?

No

Was this feature tested on these browsers?

• Mozilla Firefox

[MhmdSinanKT]

the solution is too complicated, can be simplified a lot without the need for a loop