fix(admin,api,player): 返水注单去重、操作日志 i18n 与钱包紧凑金额

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/prisma/schema.prisma

@@ -400,6 +400,7 @@ model Bet {
 
   user             User      @relation(fields: [userId], references: [id])
   selections       BetSelection[]
+  cashbackClaims   CashbackBet[]
 
   @@unique([userId, requestId])
   @@index([userId])
@@ -508,6 +509,7 @@ model CashbackBatch {
   createdAt           DateTime @default(now()) @map("created_at")
 
   items       CashbackItem[]
+  bets        CashbackBet[]
 
   @@map("cashback_batches")
 }
@@ -529,6 +531,24 @@ model CashbackItem {
   @@map("cashback_items")
 }
 
+/** 返水批次占用的注单（每笔注单全局仅能计入一次待发放/已发放批次） */
+model CashbackBet {
+  id        BigInt   @id @default(autoincrement())
+  batchId   BigInt   @map("batch_id")
+  betId     BigInt   @unique @map("bet_id")
+  userId    BigInt   @map("user_id")
+  stake     Decimal  @db.Decimal(18, 4)
+  amount    Decimal  @db.Decimal(18, 4)
+  createdAt DateTime @default(now()) @map("created_at")
+
+  batch     CashbackBatch @relation(fields: [batchId], references: [id], onDelete: Cascade)
+  bet       Bet           @relation(fields: [betId], references: [id])
+
+  @@index([batchId])
+  @@index([userId])
+  @@map("cashback_bets")
+}
+
 // ============ Content & i18n ============
 
 model Content {