feat: add generate-missing logic to identify unscanned stock as inventory loss

inventory-web/src/views/stock/stocktake/index.vue

@@ -107,6 +107,11 @@
               结束盘点
             </el-button>
           </el-col>
+          <el-col :span="12">
+            <el-button v-if="userStore.hasPermission('inventory_stocktake:operation')" type="warning" size="large" class="w-100 action-btn" @click="handleGenerateMissing" :icon="Warning">
+              结束盘点 (计算漏盘)
+            </el-button>
+          </el-col>
         </el-row>
       </div>
     </el-card>
@@ -993,6 +998,46 @@ const openFinishDialog = () => {
   finishStocktake()
 }
 
+// ★ 新增：结束盘点（计算漏盘）- 将未扫描的库存标记为全额盘亏
+const handleGenerateMissing = async () => {
+  if (stats.value.total === 0) {
+    ElMessage.warning('暂无盘点数据')
+    return
+  }
+
+  try {
+    await ElMessageBox.confirm(
+      '确认结束当前盘点吗？系统将自动把所有未扫描到的库存标记为全额盘亏！',
+      '提示',
+      {
+        confirmButtonText: '确定',
+        cancelButtonText: '取消',
+        type: 'warning'
+      }
+    )
+
+    btnLoading.value = true
+    const res = await request({
+      url: '/v1/inbound/stocktake/generate-missing',
+      method: 'post'
+    })
+
+    if (res.code === 200) {
+      ElMessage.success(`成功生成 ${res.data.count} 条漏盘记录`)
+      // 刷新差异列表
+      await checkServerDraft()
+    } else {
+      ElMessage.error(res.msg || '生成漏盘数据失败')
+    }
+  } catch (e) {
+    if (e !== 'cancel') {
+      ElMessage.error('生成漏盘数据失败')
+    }
+  } finally {
+    btnLoading.value = false
+  }
+}
+
 // ★ 重写: 结束盘点 - 纯前端状态流转，不再调用后端
 const finishStocktake = async () => {
   try {