统一结账押金字段为押金赔付扣除

号主修正去掉无效的其他押金扣款，仅保留押金赔付扣除；
前后端与账单文案统一，修正时 other 与 deduct 对齐。

frontend/src/features/orders/composables/useOrderSnapshot.ts

@@ -11,7 +11,6 @@ export interface CheckoutFormSnapshot {
 export interface CounterFormSnapshot {
   consumableAmountYuan: number
   coin_consumed_m: number
-  otherAmountYuan: number
   depositDeductAmountYuan: number
   reason: string
   evidenceText: string
@@ -181,11 +180,16 @@ export function buildCheckoutContentWithSummary(options: {
 }
 
 export function hydrateCounterFormFromCheckout(checkout: Checkout): CounterFormSnapshot {
+  // 号主修正只暴露押金赔付扣除；优先用结算字段，兼容旧单 only other 的情况
+  const depositDeductYuan = amountYuan(
+    checkout.deposit_deduct_amount_cent > 0
+      ? checkout.deposit_deduct_amount_cent
+      : checkout.other_amount_cent
+  )
   return {
     consumableAmountYuan: amountYuan(checkout.consumable_amount_cent),
     coin_consumed_m: checkout.coin_consumed_m,
-    otherAmountYuan: amountYuan(checkout.other_amount_cent),
-    depositDeductAmountYuan: amountYuan(checkout.deposit_deduct_amount_cent),
+    depositDeductAmountYuan: depositDeductYuan,
     reason: '',
     evidenceText: '',
   }
@@ -193,16 +197,9 @@ export function hydrateCounterFormFromCheckout(checkout: Checkout): CounterFormS
 
 export function calculateCounterTotal(counterForm: {
   consumableAmountYuan: number
-  coin_consumed_m: number
-  otherAmountYuan: number
   depositDeductAmountYuan: number
 }) {
-  return roundMoney(
-    counterForm.consumableAmountYuan +
-      counterForm.coin_consumed_m +
-      counterForm.otherAmountYuan +
-      counterForm.depositDeductAmountYuan
-  )
+  return roundMoney(counterForm.consumableAmountYuan + counterForm.depositDeductAmountYuan)
 }
 
 export function getSnapshotHafCoinM(order: Order | null) {