feat(statistics): implement top alert stocks, top last sales, top supplier debts, and top selling products endpoints with SQL queries

prisma/schema/bank.prisma

@@ -28,6 +28,35 @@ model BankAccount {
   branch                  BankBranch                @relation("Bank_Accounts_branchId_fkey", fields: [branchId], references: [id])
   inventoryBankAccounts   InventoryBankAccount[]
   purchaseReceiptPayments PurchaseReceiptPayments[]
+  bankAccountTransactions BankAccountTransaction[]
+  bankAccountBalances     BankAccountBalance[]
 
   @@map("Bank_Accounts")
 }
+
+model BankAccountTransaction {
+  id            Int                        @id @default(autoincrement())
+  bankAccountId Int
+  type          BankAccountTransactionType
+  amount        Decimal                    @db.Decimal(15, 2)
+  balanceAfter  Decimal                    @db.Decimal(15, 2)
+  referenceId   Int
+  referenceType BankTransactionRefType
+  description   String?                    @db.Text
+  createdAt     DateTime                   @default(now()) @db.Timestamp(0)
+
+  bankAccount BankAccount @relation(fields: [bankAccountId], references: [id])
+
+  @@index([bankAccountId])
+  @@map("Bank_Account_Transactions")
+}
+
+model BankAccountBalance {
+  bankAccountId Int      @unique
+  balance       Decimal  @db.Decimal(15, 2)
+  updatedAt     DateTime @updatedAt @db.Timestamp(0)
+
+  bankAccount BankAccount @relation(fields: [bankAccountId], references: [id])
+
+  @@map("Bank_Account_Balance")
+}