feat: 福安德智慧报价平台 - 完整业务模块

基于RuoYi-Vue2构建的智慧采购报价平台，包含：

后端（Spring Boot + MyBatis）:
- 物料管理 (BizMaterial)
- 供应商管理 (BizSupplier)
- 报价请求RFQ (BizRfq)
- 供应商报价单 (BizQuotation)
- 智慧比价分析 (BizComparison)
- 采购单 (BizPurchaseOrder)
- 供应商评价 (BizSupplierEvaluation)
- 订单异议 (BizOrderObjection)
- 交易记录 (BizTransaction)
- 租户管理-SaaS数据隔离 (BizTenant)

前端（Vue2 + Element UI）:
- 10个业务模块完整页面
- ERPNext风格主题（蓝色系）
- 福安德品牌logo

部署:
- Docker Compose一键部署
- MySQL 8.0 + Redis 7 + Nginx
- 前端端口 10031

ruoyi-system/src/main/resources/mapper/bid/BizQuotationItemMapper.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.ruoyi.system.mapper.bid.BizQuotationItemMapper">
+  <resultMap id="BaseRM" type="com.ruoyi.system.domain.bid.BizQuotationItem">
+    <id property="itemId" column="item_id"/>
+    <result property="quotationId" column="quotation_id"/>
+    <result property="rfqItemId" column="rfq_item_id"/>
+    <result property="materialName" column="material_name"/>
+    <result property="spec" column="spec"/>
+    <result property="unit" column="unit"/>
+    <result property="quantity" column="quantity"/>
+    <result property="unitPrice" column="unit_price"/>
+    <result property="totalPrice" column="total_price"/>
+    <result property="deliveryDays" column="delivery_days"/>
+    <result property="remark" column="remark"/>
+  </resultMap>
+
+  <select id="selectItemsByQuotationId" resultMap="BaseRM">
+    SELECT * FROM biz_quotation_item WHERE quotation_id=#{quotationId}
+  </select>
+
+  <insert id="insertBizQuotationItem" useGeneratedKeys="true" keyProperty="itemId">
+    INSERT INTO biz_quotation_item(quotation_id,rfq_item_id,material_name,spec,unit,quantity,unit_price,total_price,delivery_days,remark)
+    VALUES(#{quotationId},#{rfqItemId},#{materialName},#{spec},#{unit},#{quantity},#{unitPrice},#{totalPrice},#{deliveryDays},#{remark})
+  </insert>
+
+  <delete id="deleteByQuotationId">DELETE FROM biz_quotation_item WHERE quotation_id=#{quotationId}</delete>
+</mapper>