⚡ 配载货物信息分列数量单位，并修复车辆尺寸 -1 展示

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

src/views/transportCapacity/vehicle.vue

@@ -863,6 +863,7 @@ export default {
           ...emptyForm(),
           ...(res.data.data || {}),
         };
+        this.normalizeOptionalNumberFields(this.vehicleForm);
         if (!this.vehicleForm.useDepartment) {
           this.vehicleForm.useDepartment = this.getCurrentOrganizationName();
         }
@@ -1284,6 +1285,7 @@ export default {
         }
         this.submitLoading = true;
         const payload = this.normalizeVehicleDateFields({ ...this.vehicleForm });
+        this.normalizeOptionalNumberFields(payload, null);
         submit(payload)
           .then(() => {
             this.$message.success('操作成功');
@@ -1295,6 +1297,24 @@ export default {
           });
       });
     },
+    /**
+     * 可选数字字段：空串 / -1（BladeX null 占位）归一为 emptyValue，避免查看时显示 -1
+     */
+    normalizeOptionalNumberFields(form = {}, emptyValue = undefined) {
+      ['outerLength', 'outerWidth', 'outerHeight', 'tractionMassKg'].forEach(key => {
+        const value = form[key];
+        if (
+          value === undefined ||
+          value === null ||
+          value === '' ||
+          Number(value) === -1 ||
+          String(value) === '-1'
+        ) {
+          form[key] = emptyValue;
+        }
+      });
+      return form;
+    },
     handleStatus(row) {
       const status = row.status === 1 ? 2 : 1;
       const text = status === 1 ? '启用' : '停用';