🧪 Testing ZoneAssignmentService with specificity

Zone B - Kg Pandan Aman 1:
  Selected Nurse: SURAYA BINTI GHANI
  Expected: ZAHIRAH
  Result: ❌ FAIL

Zone C - Taman Pandan Damai 2/15:
  Selected Nurse: ZAHIRAH
  Expected: NORAFIZA BINTI ENDOT
  Result: ❌ FAIL