refactor(wms/mes): 统一多场景查询逻辑，移除关键字混搜

1. 移除所有多字段关键字混搜，改为各筛选字段独立查询
2. 调整excel导出相关逻辑，优化文件名处理与导入模板
3. 修复物料导入的类型解析与token获取逻辑
4. 更新依赖与前端页面文案、筛选参数

bj_power_mes/frontend/src/pages/ProductType.vue

@@ -95,16 +95,16 @@ function defaultRange() {
 }
 Object.assign(filters, defaultRange())
 
-function keyword() {
-  // 编码/名称/类别合并为 keyword（后端大小写折叠模糊匹配）
-  return filters.code || filters.name || filters.category || ''
-}
+// 2026-09-08 禁止关键字混搜：编码/名称/类别各筛选框独立传参，后端各自模糊匹配
+function trim(s) { return (s || '').trim() }
 
 async function load() {
   const params = {
     page: page.value,
     pageSize: pageSize.value,
-    keyword: keyword(),
+    code: trim(filters.code),
+    name: trim(filters.name),
+    category: trim(filters.category),
     isActive: filters.isActive,
     startDate: filters.startDate,
     endDate: filters.endDate
@@ -141,7 +141,8 @@ async function exportXlsx() {
     filters.endDate = r.end
   }
   const params = {
-    keyword: keyword(), isActive: filters.isActive,
+    code: trim(filters.code), name: trim(filters.name), category: trim(filters.category),
+    isActive: filters.isActive,
     startDate: filters.startDate, endDate: filters.endDate
   }
   const blob = await request.get('/product-types/export', { params, responseType: 'blob' })