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

prisma/schema/good_service/sku.prisma

@@ -1,19 +1,17 @@
 model StockKeepingUnits {
-  id          String  @id @default(ulid())
-  code        String  @unique
+  id          String   @id @default(ulid())
+  code        String   @unique
   name        String
-  VAT         Decimal @db.Decimal(5, 2)
-  is_public   Boolean @default(true)
-  is_domestic Boolean @default(false)
-
-  guild_id String
-  guild    Guild  @relation(fields: [guild_id], references: [id])
-
-  created_at DateTime @default(now()) @db.Timestamp(0)
-  updated_at DateTime @updatedAt() @db.Timestamp(0)
-
-  goods Good[]
+  VAT         Decimal  @db.Decimal(5, 2)
+  is_public   Boolean  @default(true)
+  is_domestic Boolean  @default(false)
+  guild_id    String
+  created_at  DateTime @default(now()) @db.Timestamp(0)
+  updated_at  DateTime @updatedAt @db.Timestamp(0)
+  goods       Good[]
+  guild       Guild    @relation(fields: [guild_id], references: [id])
 
   @@index([code])
+  @@index([guild_id], map: "stock_keeping_units_guild_id_fkey")
   @@map("stock_keeping_units")
 }