feat: implement sorting and visibility changes

backend/prisma/schema.prisma

@@ -25,6 +25,8 @@ model Doctor {
   designation   String?
   workingStatus String?
   qualification String?
+  isActive      Boolean  @default(true)
+  globalSortOrder Int    @default(1000)
 
   departments  DoctorDepartment[]
   appointments Appointment[]
@@ -46,6 +48,9 @@ model Department {
   facilities String?
   services   String?
 
+  isActive     Boolean  @default(true)
+  sortOrder    Int      @default(1000)
+
   doctors      DoctorDepartment[]
   appointments Appointment[]
 
@@ -61,7 +66,7 @@ model DoctorDepartment {
 
   doctor     Doctor     @relation(fields: [doctorId], references: [id])
   department Department @relation(fields: [departmentId], references: [id])
-
+  sortOrder  Int        @default(1000)
   timing DoctorTiming?
 
   createdAt DateTime @default(now())
@@ -111,7 +116,8 @@ model Career {
   email          String?
   number         String?
   status         String  @default("new")
-
+  isActive       Boolean @default(true)
+  sortOrder      Int     @default(1000)
   candidates Candidate[]
 
   createdAt DateTime @default(now())