update migrations and create base migration. set discount and tax to sale invoices

prisma/schema/shared/customers.prisma

@@ -1,34 +1,28 @@
 model Customer {
-  id          String       @id @default(ulid())
-  is_favorite Boolean?     @default(false)
-  type        CustomerType
-
-  created_at DateTime  @default(now()) @db.Timestamp(0)
-  updated_at DateTime  @updatedAt @db.Timestamp(0)
-  deleted_at DateTime? @db.Timestamp(0)
-
-  individual CustomerIndividual?
-  legal      CustomerLegal?
-
+  id             String              @id @default(ulid())
+  is_favorite    Boolean?            @default(false)
+  type           CustomerType
+  created_at     DateTime            @default(now()) @db.Timestamp(0)
+  updated_at     DateTime            @updatedAt @db.Timestamp(0)
+  deleted_at     DateTime?           @db.Timestamp(0)
+  individual     CustomerIndividual?
+  legal          CustomerLegal?
   sales_invoices SalesInvoice[]
 
   @@map("customers")
 }
 
 model CustomerIndividual {
-  first_name    String @db.VarChar(255)
-  last_name     String @db.VarChar(255)
-  national_id   String @db.Char(10)
-  mobile_number String @db.Char(15)
-
-  postal_code   String  @db.Char(10)
-  economic_code String? @db.Char(10)
-
-  customer_id String   @id
-  customer    Customer @relation(fields: [customer_id], references: [id], onDelete: Cascade)
-
+  first_name           String           @db.VarChar(255)
+  last_name            String           @db.VarChar(255)
+  national_id          String           @db.Char(10)
+  mobile_number        String           @db.Char(15)
+  postal_code          String           @db.Char(10)
+  economic_code        String?          @db.Char(10)
+  customer_id          String           @id
   business_activity_id String
-  business_activity    BusinessActivity @relation(fields: [business_activity_id], references: id)
+  business_activity    BusinessActivity @relation(fields: [business_activity_id], references: [id])
+  customer             Customer         @relation(fields: [customer_id], references: [id], onDelete: Cascade)
 
   @@unique([business_activity_id, national_id])
   @@index([business_activity_id])
@@ -36,16 +30,14 @@ model CustomerIndividual {
 }
 
 model CustomerLegal {
-  name                String  @db.VarChar(255)
-  economic_code       String  @db.Char(10)
-  registration_number String? @db.Char(20)
-  postal_code         String  @db.Char(10)
-
-  customer_id String   @id
-  customer    Customer @relation(fields: [customer_id], references: [id], onDelete: Cascade)
-
+  name                 String           @db.VarChar(255)
+  economic_code        String           @db.Char(10)
+  registration_number  String?          @db.Char(20)
+  postal_code          String           @db.Char(10)
+  customer_id          String           @id
   business_activity_id String
-  business_activity    BusinessActivity @relation(fields: [business_activity_id], references: id)
+  business_activity    BusinessActivity @relation(fields: [business_activity_id], references: [id])
+  customer             Customer         @relation(fields: [customer_id], references: [id], onDelete: Cascade)
 
   @@unique([business_activity_id, economic_code])
   @@index([business_activity_id])