feat&fix: 完善半成品/序列号闭环流转逻辑

1. 调整物料编码字段为可空，优化注释说明
2. 修复Vite构建自动清空产物目录冲突问题
3. 优化前端提示文案与表单占位符
4. 为各前端项目添加内联SVG图标
5. 重构MES半成品流转逻辑，不再静默吞掉WMS错误并记录日志
6. 生成并添加空的WMS客户端静态文件
7. 完善Ent ORM模型的空值支持与查询谓词
8. 优化半成品入库接口，支持doneProcessCodes数组格式，新增SN反查物料编码逻辑
9. 更新帮助文档与操作手册

bj_power_wms_client/frontend/src/pages/Inspection.vue

@@ -20,7 +20,7 @@ onMounted(() => nextTick(() => scanRef.value?.focus()))
 async function submitSingle() {
   const id = targetId.value.trim()
   if (!id) {
-    ElMessage.warning('请扫入或输入目标编号')
+    ElMessage.warning('请扫入或输入批次号或 SN 序列号')
     return
   }
   if (!inspector.value.trim()) {

bj_power_wms_client/frontend/src/pages/Semi.vue

@@ -133,7 +133,7 @@ function search() {
             </el-select>
           </el-form-item>
           <el-form-item label="已完成工序">
-            <el-input v-model="inForm.completedProcess" placeholder="如：135（可空）" clearable />
+            <el-input v-model="inForm.completedProcess" placeholder="如：1,3,5（可空）" clearable />
           </el-form-item>
           <el-form-item label="工单号">
             <el-input v-model="inForm.orderNo" placeholder="来源工单号（可空）" clearable />

bj_power_wms_client/frontend/src/pages/Stocktake.vue

@@ -183,7 +183,7 @@ async function loadHistory() {
                 style="margin-bottom:10px" />
       <el-table :data="finishResult.diffs || []" border size="small"
                 empty-text="无差异，账实相符">
-        <el-table-column prop="targetId" label="目标编号" min-width="190" />
+        <el-table-column prop="targetId" label="批次号 / SN 序列号" min-width="190" />
         <el-table-column prop="type" label="类型" width="100" align="center">
           <template #default="{ row }">{{ row.type === 'BATCH' ? '批次' : 'SN' }}</template>
         </el-table-column>