Bổ sung người thanh toán vào thêm địa điểm

prisma/schema.prisma

@@ -60,6 +60,7 @@ model User {
   createdTours  Tour[]            @relation("TourCreator")
   tourParticipations TourParticipant[]
   uploadedPhotos Photo[]
+  paidExpenses  Expense[]         @relation("ExpensePaidBy")
 }
 
 model Tour {
@@ -128,9 +129,12 @@ model Expense {
   category    ExpenseCategory
   amount      Decimal         @db.Decimal(15, 2)
   description String?         @db.Text
+  note        String?         @db.Text
+  paidById    String?         @map("paid_by_id")
 
   leg         Leg             @relation(fields: [legId], references: [id], onDelete: Cascade)
   location    Location?       @relation(fields: [locationId], references: [id], onDelete: Cascade)
+  paidBy      User?           @relation("ExpensePaidBy", fields: [paidById], references: [id], onDelete: SetNull)
 }
 
 model Photo {