fix: 统一计划产品计量单位并兼容历史吨单位，避免保存时关联校验失败。

web-admin/src/utils/pl-plan-stop-form.ts

@@ -2,6 +2,7 @@ import type { Plan, PlanContractLink, PlanDelivery, PlanLoad, PlanStopProduct }
 import type { PlanFormProductRow } from '@/composables/usePlContractToPlan'
 import type { BrandOption } from '@/utils/crm-product-brand'
 import { formatBrandConstraintLabel } from '@/utils/crm-product-brand'
+import { normalizeProductUnitValue } from '@/utils/crm-product-display'
 import {
   isPlDibangOptionalVehiclePlate,
   isPlInternalCustomerName
@@ -193,7 +194,7 @@ export function createStopProductsFromPlanProducts(
     brandName: item.brandName,
     brandOptions: item.brandOptions ? [...item.brandOptions] : undefined,
     model: item.model,
-    unit: item.unit || '吨',
+    unit: normalizeProductUnitValue(item.unit),
     packageSpec: item.packageSpec,
     deliveryMethod: item.deliveryMethod,
     planQty: Number(item[qtyField] ?? item.quantity ?? 0),
@@ -399,7 +400,7 @@ export function enrichStopProductsDisplayFromPlan(
       brandName: match.brandName ?? row.brandName,
       brandOptions: match.brandOptions?.length ? [...match.brandOptions] : row.brandOptions,
       model: row.model || match.model,
-      unit: row.unit || match.unit || '吨',
+      unit: normalizeProductUnitValue(row.unit || match.unit),
       packageSpec: row.packageSpec || match.packageSpec,
       deliveryMethod: row.deliveryMethod || match.deliveryMethod,
       planQty,
@@ -461,7 +462,7 @@ function mapStopProductFromApi(row: PlanStopProduct): PlanStopProductFormRow {
     productNo: row.productNo,
     productName: row.productName,
     model: row.model,
-    unit: row.unit || '吨',
+    unit: normalizeProductUnitValue(row.unit),
     packageSpec: row.packageSpec,
     deliveryMethod: row.deliveryMethod,
     contractId: row.contractId,
@@ -595,7 +596,7 @@ export function mapLegacyPlanToStops(plan: Plan): {
       productNo: item.productNo || '',
       productName: item.productName || '',
       model: item.model,
-      unit: item.unit || '吨',
+      unit: normalizeProductUnitValue(item.unit),
       quantity: Number(item.quantity ?? item.actualQty ?? 0),
       packageSpec: item.packageSpec,
       deliveryMethod: item.deliveryMethod,
@@ -754,7 +755,7 @@ export function mapLoadProductsToPlanFormRows(
     brandName: row.brandName,
     brandOptions: row.brandOptions ? [...row.brandOptions] : undefined,
     model: row.model,
-    unit: row.unit || '吨',
+    unit: normalizeProductUnitValue(row.unit),
     quantity: Number(row.planQty ?? 0),
     actualQty: 0,
     packageSpec: row.packageSpec,
@@ -863,7 +864,7 @@ export function buildStopProductPayload(row: PlanStopProductFormRow) {
     productNo: row.productNo,
     productName: row.productName,
     model: row.model,
-    unit: row.unit,
+    unit: normalizeProductUnitValue(row.unit),
     packageSpec: row.packageSpec,
     deliveryMethod: row.deliveryMethod,
     contractId: row.contractId || undefined,