feat(utils): 添加数字格式化工具函数并应用至多个组件

添加 formatDecimal 函数用于格式化小数显示，去除末尾无效0和孤立小数点
在库存管理、采购、出入库等模块中应用该格式化函数，统一数字显示格式
调整仪表盘统计数据的精度显示为整数
优化采购截止日期的显示逻辑，增加状态判断和剩余天数计算

gear-ui3/src/views/mat/product/index.vue

@@ -39,7 +39,11 @@
       <el-table-column label="产品名称" align="center" prop="productName" />
       <el-table-column label="产品规格" align="center" prop="spec" />
       <el-table-column label="产品型号" align="center" prop="model" />
-      <el-table-column label="产品单价" align="center" prop="unitPrice" />
+      <el-table-column label="产品单价" align="center" prop="unitPrice">
+        <template #default="scope">
+          {{ formatDecimal(scope.row.unitPrice) }}
+        </template>
+      </el-table-column>
       <el-table-column label="备注" align="center" prop="remark" />
       <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
         <template #default="scope">
@@ -95,7 +99,11 @@
           <el-table-column label="配料型号" align="center" prop="model" />
           <el-table-column label="厂家" align="center" prop="factory" />
           <el-table-column label="计量单位" align="center" prop="unit" />
-          <el-table-column label="现存库存" align="center" prop="currentStock" />
+          <el-table-column label="现存库存" align="center" prop="currentStock">
+            <template #default="scope">
+              {{ formatDecimal(scope.row.currentStock) }}
+            </template>
+          </el-table-column>
           <el-table-column label="备注" align="center" prop="remark" />
         </el-table>
       </div>
@@ -109,6 +117,7 @@
 import { listProduct, getProduct, delProduct, addProduct, updateProduct } from "@/api/mat/product";
 import bom from "@/views/mat/components/bom.vue";
 import StickyDragContainer from "@/components/StickyDragContainer/index.vue";
+import { formatDecimal } from '@/utils/gear'
 
 const bomOpen = ref(false);