feat(stocking): 取消预估退税自动计算，改为纯手动输入

移除 watch 中的 (官方价-优惠)*11.5% 自动写入与手动编辑跟踪
(manualTaxRefundRows/prevTaxRefundValues/calcTaxRefund)，
保留手动输入后利润联动重算；placeholder 改为请输入。

Co-Authored-By: Claude <noreply@anthropic.com>

src/composables/useStockingForm.ts

@@ -158,7 +158,6 @@ export function useStockingForm(isFinal = false, stockingId?: string | number) {
   // 回显填充抑制标记：为 true 时不触发自动计算覆盖接口值
   const isPopulating = ref(false)
   const userEditing = ref<Set<number>>(new Set()) // 跟踪用户正在编辑的行
-  const manualTaxRefundRows = ref<Set<number>>(new Set()) // 跟踪用户手动编辑过预估退税额的行
 
   // 选项数据
   const channelOptions = ref<any>()
@@ -622,26 +621,6 @@ export function useStockingForm(isFinal = false, stockingId?: string | number) {
     return unit - retention
   }
 
-  // 计算预估退税额 = (官方价 - 折扣价) * 11.5% (固定人民币)
-  const calcTaxRefund = (it: any): number => {
-    const mileageVal = Number(it.mileage ?? 0)
-    if (mileageVal > 0) return 0
-    const targetCurrency = 'CNY' // 固定使用人民币
-    const official = convertCurrency(
-      it.official_price ?? (it as any).guide_price,
-      (it as any).guide_price_currency,
-      targetCurrency
-    )
-    const discount = convertCurrency(
-      it.discount_price ?? (it as any).discount,
-      (it as any).discount_currency,
-      targetCurrency
-    )
-    const base = official - discount
-    const refund = base * 0.115
-    return refund < 0 ? 0 : Number(refund.toFixed(2))
-  }
-
   // 计算车价：车价 = 报关价 - FOB运费 - 港杂费 - 海运费
   const calcCarPrice = (it: any): number => {
     const targetCurrency = it.car_price_currency || baseForm.settlement_currency || 'CNY'
@@ -811,49 +790,14 @@ export function useStockingForm(isFinal = false, stockingId?: string | number) {
   const copyRow = (idx: number) => {
     const copied = JSON.parse(JSON.stringify(items.value[idx])) as ItemRow
     items.value.splice(idx + 1, 0, copied)
-    // 如果原行是手动编辑的，复制的行也标记为手动编辑
-    if (manualTaxRefundRows.value.has(idx)) {
-      // 需要调整后续行的索引
-      const newManualRows = new Set<number>()
-      manualTaxRefundRows.value.forEach((rowIdx) => {
-        if (rowIdx <= idx) {
-          newManualRows.add(rowIdx)
-        } else {
-          newManualRows.add(rowIdx + 1)
-        }
-      })
-      newManualRows.add(idx + 1) // 新复制的行
-      manualTaxRefundRows.value = newManualRows
-    }
   }
 
   const addRowAfter = (idx: number) => {
     items.value.splice(idx + 1, 0, newItem())
-    // 调整后续行的手动编辑标记索引
-    const newManualRows = new Set<number>()
-    manualTaxRefundRows.value.forEach((rowIdx) => {
-      if (rowIdx <= idx) {
-        newManualRows.add(rowIdx)
-      } else {
-        newManualRows.add(rowIdx + 1)
-      }
-    })
-    manualTaxRefundRows.value = newManualRows
   }
 
   const removeRow = (idx: number) => {
     items.value.splice(idx, 1)
-    // 移除该行的手动编辑标记，并调整后续行的索引
-    const newManualRows = new Set<number>()
-    manualTaxRefundRows.value.forEach((rowIdx) => {
-      if (rowIdx < idx) {
-        newManualRows.add(rowIdx)
-      } else if (rowIdx > idx) {
-        newManualRows.add(rowIdx - 1)
-      }
-      // rowIdx === idx 的行被删除，不添加到新集合中
-    })
-    manualTaxRefundRows.value = newManualRows
   }
 
   // 收款项操作方法
@@ -1197,16 +1141,6 @@ export function useStockingForm(isFinal = false, stockingId?: string | number) {
     }
     // 等待本轮变更完成后，再恢复自动计算
     nextTick(() => {
-      // 检查哪些行的预估退税额与自动计算值不同，标记为手动编辑
-      items.value.forEach((it: any, index: number) => {
-        const currentValue = String(it.tax_refund || '')
-        const autoCalculatedValue = String(calcTaxRefund(it) || '0')
-        if (currentValue !== autoCalculatedValue && currentValue !== '' && currentValue !== '0') {
-          manualTaxRefundRows.value.add(index)
-        }
-      })
-      // 初始化 prevTaxRefundValues
-      prevTaxRefundValues.value = items.value.map((item: any) => String(item.tax_refund || ''))
       isPopulating.value = false
     })
   }
@@ -1442,15 +1376,6 @@ export function useStockingForm(isFinal = false, stockingId?: string | number) {
           }
         }
 
-        // 自动计算预估退税额（跳过用户手动编辑过的行）
-        if (!manualTaxRefundRows.value.has(index)) {
-          const refund = calcTaxRefund(it)
-          if (items.value[index]) {
-            items.value[index].tax_refund = isNaN(refund) ? '0' : String(Number(refund.toFixed(2)))
-            ;(items.value[index] as any).tax_refund_currency = 'CNY'
-          }
-        }
-
         // 自动计算车价
         const carPrice = calcCarPrice(it)
         if (items.value[index]) {
@@ -1500,40 +1425,15 @@ export function useStockingForm(isFinal = false, stockingId?: string | number) {
     { deep: true }
   )
 
-  // 存储上一次的 tax_refund 值，用于检测用户手动输入
+  // 预估退税额为手动输入，输入变化时重新计算利润
-  const prevTaxRefundValues = ref<string[]>([])
-
-  // 当用户手动输入预估退税额时，重新计算利润
   watch(
     () => items.value.map((item: any) => item.tax_refund),
-    (newValues) => {
+    () => {
       if (isPopulating.value) return
 
-      // 初始化 prevTaxRefundValues
-      if (prevTaxRefundValues.value.length === 0) {
-        prevTaxRefundValues.value = newValues.map((v: any) => String(v || ''))
-      }
-
       items.value.forEach((it: any, index: number) => {
         if (!items.value[index]) return
 
-        const currentValue = String(it.tax_refund || '')
-        const prevValue = prevTaxRefundValues.value[index] || ''
-        const autoCalculatedValue = String(calcTaxRefund(it) || '0')
-
-        // 如果当前值与自动计算值不同，且与上一次值不同，说明是用户手动输入的
-        if (
-          currentValue !== autoCalculatedValue &&
-          currentValue !== prevValue &&
-          currentValue !== ''
-        ) {
-          // 标记该行已被用户手动编辑
-          manualTaxRefundRows.value.add(index)
-        }
-
-        // 更新上一次的值
-        prevTaxRefundValues.value[index] = currentValue
-
         // 重新计算利润
         const profit = calcProfit(it)
         items.value[index].profit = isNaN(profit) ? 0 : Number(profit.toFixed(2))
@@ -1621,7 +1521,6 @@ export function useStockingForm(isFinal = false, stockingId?: string | number) {
     wrapMoney,
     calcProfit,
     calcClearanceFee,
-    calcTaxRefund,
     handleUserEdit,
 
     // 合同文件方法

src/views/crmpc/stocking/Add.vue

@@ -457,7 +457,7 @@
               <ElFormItem label="预估退税额" label-width="85px">
                 <ElInput
                   v-model="item.tax_refund"
-                  placeholder="正在计算预估退税额"
+                  placeholder="请输入预估退税额"
                   @input="handleUserEdit(idx)"
                 >
                   <template #suffix>

src/views/crmpc/stocking/final_add.vue

@@ -480,7 +480,7 @@
               <ElFormItem label="预估退税额" label-width="85px">
                 <ElInput 
                   v-model="item.tax_refund" 
-                  placeholder="正在计算预估退税额"
+                  placeholder="请输入预估退税额"
                   @input="handleUserEdit(idx)"
                 >
                   <template #suffix>

src/views/crmpc/stocking/stocking_edit.vue

@@ -479,7 +479,7 @@
               <ElFormItem label="预估退税额" label-width="85px">
                 <ElInput 
                   v-model="item.tax_refund" 
-                  placeholder="正在计算预估退税额"
+                  placeholder="请输入预估退税额"
                   @input="handleUserEdit(idx)"
                 >
                   <template #suffix>