Refactor Partner and POS models to replace 'serial' with 'serial_number' and update related services and DTOs

- Updated PartnerAccountQuotaAllocation model to change license relation.
- Refactored Pos model to replace 'serial' with 'serial_number' across all references.
- Modified BusinessActivitiesService to include license activation details in responses.
- Adjusted ComplexPosesService to reflect changes in the Pos model.
- Updated PartnerService to include a new method for updating partner profiles.
- Created UpdatePartnerProfileDto for partner profile updates.
- Added migration to drop 'serial' column and add unique 'serial_number' column in poses table.

prisma/schema/admin/license.prisma

@@ -1,6 +1,6 @@
 model License {
   id             String @id @default(ulid())
-  accounts_limit Int    @default(3)
+  accounts_limit Int    @default(2)
 
   created_at DateTime @default(now()) @db.Timestamp(0)
   updated_at DateTime @updatedAt() @db.Timestamp(0)
@@ -8,8 +8,8 @@ model License {
   charge_transaction_id String
   charge_transaction    LicenseChargeTransaction @relation(fields: [charge_transaction_id], references: [id])
 
-  activation  LicenseActivation?
-  allocations PartnerAccountQuotaAllocation[]
+  activation          LicenseActivation?
+  account_allocations PartnerAccountQuotaAllocation[]
 
   @@map("licenses")
 }