feat: 重构BOM架构，新增基础设置与虚拟工位管理功能

本次重构删除原有BOM物料清单表，改用工单工艺组合×工艺物料清单作为唯一用料来源；新增系统基础设置表支持WMS地址、日志保留天数等配置，新增虚拟工位作业管理后台接口与前端页签控制功能，同时优化工位号校验逻辑、事件日志自动清理与工单用料查询能力。

bj_power_workstation/frontend/src/store/station.js

@@ -90,6 +90,10 @@ export const missingTorqueSteps = computed(
   () => torqueSteps.value.filter((s) => !torqueRowOfStep(s.id))
 )
 export const orderNos = computed(() => (Array.isArray(state.task?.orderNos) ? state.task.orderNos : []))
+// 终端可见页签（按工位配置；空=全部显示）。可选值 online/work/material/move/pdf/inspect/offline
+export const visibleTabs = computed(() => (Array.isArray(state.task?.tabs) ? state.task.tabs : []))
+// 页签是否显示：未配置（空数组）一律显示
+export const hasTab = (name) => !visibleTabs.value.length || visibleTabs.value.includes(name)
 export const flowName = computed(() => state.task?.flow?.name || '-')
 export const flowActive = computed(() => !!state.task?.flowActive)
 // 本工位绑定的工艺 ID（station.flowId，随任务下发）：装机绑定/报工一律按 flowId 查询与上报
@@ -202,7 +206,8 @@ export async function loadConfig() {
 }
 
 export async function loadTask() {
-  if (!state.stationNo) return
+  // 0=上线位是合法工位，不能用 falsy 判断，否则上线位永远不拉任务
+  if (state.stationNo == null || state.stationNo === '') return
   try {
     state.task = await getTaskCurrent(state.stationNo)
     if (orderNos.value.length && !orderNos.value.includes(state.orderNo)) {
@@ -311,7 +316,7 @@ export function refreshAll() {
 // loadStationState 拉取本工位当天的停单状态（MES /api/internal/station/state），刷新横幅与按钮。
 // 拉取失败保持现状，避免网络抖动误清停单横幅。
 export async function loadStationState() {
-  if (!state.stationNo) return
+  if (state.stationNo == null || state.stationNo === '') return
   try {
     const list = await getStationState()
     const rows = Array.isArray(list) ? list : (list?.list || [])

bj_power_workstation/frontend/src/views/Login.vue

@@ -27,7 +27,7 @@
       </div>
       <div class="field">
         <span class="lab">工位</span>
-        <span class="station-fixed">{{ fixedStation ? '工位 ' + fixedStation : '工位加载中…' }}</span>
+        <span class="station-fixed">{{ fixedStation != null ? '工位 ' + fixedStation : '工位加载中…' }}</span>
       </div>
 
       <el-button class="btn-login" type="primary" size="large" :loading="loading" @click="submit">
@@ -49,14 +49,16 @@ import { setAuth } from '../utils/request'
 const router = useRouter()
 const username = ref('')
 const password = ref('')
-const fixedStation = ref(0)
+// null=未加载；0=上线位是合法工位，不能用 falsy 判断
+const fixedStation = ref(null)
 const loading = ref(false)
 
 // 工位由服务端配置文件固定，一个工位一个终端，终端不允许修改工位
 onMounted(async () => {
   try {
     const cfg = await getConfig()
-    if (cfg?.stationNo > 0) fixedStation.value = cfg.stationNo
+    // 0=上线位、13=下线位为合法虚拟工位，>=0 都算加载成功
+    if (typeof cfg?.stationNo === 'number' && cfg.stationNo >= 0) fixedStation.value = cfg.stationNo
   } catch {
     // 网络异常时保留 0，登录会提示配置未加载
   }
@@ -67,7 +69,7 @@ async function submit() {
     ElMessage.warning('请输入账号和密码')
     return
   }
-  if (!fixedStation.value) {
+  if (fixedStation.value == null) {
     ElMessage.warning('工位配置未加载，请检查服务端配置文件后重启')
     return
   }

bj_power_workstation/frontend/src/views/Main.vue

@@ -40,25 +40,25 @@
     </transition>
 
     <el-tabs v-model="tab" type="border-card" class="main-tabs">
-      <el-tab-pane v-if="isOnline" label="上线建档" name="online">
+      <el-tab-pane v-if="hasTab('online')" label="上线建档" name="online">
         <OnlinePanel />
       </el-tab-pane>
-      <el-tab-pane v-if="isOffline" label="下线完工" name="offline">
+      <el-tab-pane v-if="hasTab('offline')" label="下线完工" name="offline">
         <OfflinePanel />
       </el-tab-pane>
-      <el-tab-pane v-if="!isVirtual" label="作业" name="work">
+      <el-tab-pane v-if="hasTab('work')" label="作业" name="work">
         <WorkPanel ref="workRef" @call-material="tab = 'material'" />
       </el-tab-pane>
-      <el-tab-pane label="物料 / 叫料" name="material">
+      <el-tab-pane v-if="hasTab('material')" label="物料 / 叫料" name="material">
         <MaterialPanel />
       </el-tab-pane>
-      <el-tab-pane v-if="!isVirtual" label="移料" name="move">
+      <el-tab-pane v-if="hasTab('move')" label="移料" name="move">
         <MovePanel />
       </el-tab-pane>
-      <el-tab-pane v-if="!isVirtual" label="工艺文件" name="pdf">
+      <el-tab-pane v-if="hasTab('pdf')" label="工艺文件" name="pdf">
         <PdfPanel />
       </el-tab-pane>
-      <el-tab-pane label="巡检 / 异常" name="inspect">
+      <el-tab-pane v-if="hasTab('inspect')" label="巡检 / 异常" name="inspect">
         <InspectPanel />
       </el-tab-pane>
     </el-tabs>
@@ -71,7 +71,7 @@
 </template>
 
 <script setup>
-import { computed, onBeforeUnmount, onMounted, ref } from 'vue'
+import { computed, onBeforeUnmount, onMounted, ref, watch } from 'vue'
 import { useRouter } from 'vue-router'
 import { ElMessage } from 'element-plus'
 import WorkPanel from './panels/WorkPanel.vue'
@@ -96,6 +96,7 @@ import { stationLogout, syncFlush } from '../api'
 import { clearAuth } from '../utils/request'
 import {
   hasNg,
+  hasTab,
   loadConfig,
   loadMoves,
   loadPoints,
@@ -112,7 +113,8 @@ import {
   sn,
   state,
   stationNo,
-  user
+  user,
+  visibleTabs
 } from '../store/station'
 
 const router = useRouter()
@@ -126,6 +128,13 @@ const isOnline = computed(() => Number(stationNo.value) === 0)
 const isOffline = computed(() => Number(stationNo.value) === 13)
 const isVirtual = computed(() => isOnline.value || isOffline.value)
 
+// 任务下发页签配置后，当前页签若被隐藏则切到第一个可见页签
+watch(visibleTabs, () => {
+  if (visibleTabs.value.length && !visibleTabs.value.includes(tab.value)) {
+    tab.value = visibleTabs.value[0]
+  }
+})
+
 // 帮助内容随当前页签切换（全局唯一一个 PageHelp 悬浮按钮）
 const HELP_MAP = {
   online: helpOnline,
@@ -166,9 +175,9 @@ function logout() {
 onMounted(async () => {
   tickClock()
   await loadConfig()
-  // 虚拟工位默认落到对应面板；物理工位默认作业页
-  if (isOnline.value) tab.value = 'online'
-  else if (isOffline.value) tab.value = 'offline'
+  // 默认落点：按工位页签配置，优先上线建档/下线完工，否则作业页
+  if (hasTab('online')) tab.value = 'online'
+  else if (hasTab('offline')) tab.value = 'offline'
   else tab.value = 'work'
   refreshAll()
   loadMoves()