feat(crm): 新增客户管理相关组件和功能

新增客户信息展示、编辑组件及订单管理功能
优化客户详情页布局和交互体验
重构订单管理模块，增加客户关联功能

klp-ui/src/views/crm/components/CustomerInfo.vue

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+<template>
+  <el-descriptions :column="2" border>
+    <el-descriptions-item label="客户编号">
+      {{ customer.customerCode || '-' }}
+    </el-descriptions-item>
+    <el-descriptions-item label="公司">
+      {{ customer.companyName || '-' }}
+    </el-descriptions-item>
+    <el-descriptions-item label="联系人">
+      {{ customer.contactPerson || '-' }}
+    </el-descriptions-item>
+    <el-descriptions-item label="客户联系方式">{{ customer.contactWay || '-' }}</el-descriptions-item>
+    <el-descriptions-item label="客户行业">
+      <dict-tag :value="customer.industry" :options="dict.type.customer_industry"></dict-tag>
+    </el-descriptions-item>
+    <el-descriptions-item label="客户等级">
+      <dict-tag :value="customer.customerLevel" :options="dict.type.customer_level"></dict-tag>
+    </el-descriptions-item>
+    <el-descriptions-item label="客户地址" v-hasPermi="['crm:customer:address']">{{ customer.address || '-' }}</el-descriptions-item>
+  </el-descriptions>
+</template>
+
+<script>
+export default {
+  name: 'CustomerDetail',
+  props: {
+    // 客户信息对象
+    customer: {
+      type: Object,
+      required: true,
+      default: () => ({})
+    },
+    // 字典数据
+    dict: {
+      type: Object,
+      required: true,
+      default: () => ({ type: {} })
+    }
+  }
+}
+</script>