Fix init tables

backend/app/schemas/employee.py

@@ -1,12 +1,12 @@
 """Employee schemas"""
-from pydantic import BaseModel, ConfigDict
+from pydantic import BaseModel, ConfigDict, EmailStr
 from datetime import datetime
 from typing import Optional
 
 class EmployeeBase(BaseModel):
-    email: str
+    email: EmailStr
     full_name: str
-    department: str
+    department: Optional[str] = None
     is_active: bool = True
     is_admin: bool = False
 
@@ -16,10 +16,9 @@ class EmployeeCreate(EmployeeBase):
     password: str
 
 class EmployeeUpdate(BaseModel):
-    email: Optional[str] = None
+    email: Optional[EmailStr] = None
     full_name: Optional[str] = None
     department: Optional[str] = None
-    password: Optional[str] = None
     is_active: Optional[bool] = None
     is_admin: Optional[bool] = None