feat: 完成产线MES系统全流程功能迭代与优化

本提交完成了多个核心模块的功能完善与业务对齐：
1. 工位终端：固定工位配置、移除自选工位逻辑、适配配置化工位号
2. MES核心：重构工位组合逻辑、新增工单/流程状态管理、补全报工/追溯逻辑
3. WMS客户端：新增修改密码功能、优化帮助弹窗逻辑
4. 文档与权限：补充完整操作手册、统一菜单名称与权限描述
5. 修复多业务校验：排产数量校验、工单状态校验、工位绑定规则

bj_power_wms_client/frontend/src/components/PageHelp.vue

@@ -56,7 +56,7 @@
 </template>
 
 <script setup>
-import { ref } from 'vue'
+import { ref, onMounted, onBeforeUnmount } from 'vue'
 
 defineProps({
   data: { type: Object, default: () => ({ title: '操作说明', overview: '', fields: [] }) }
@@ -64,6 +64,10 @@ defineProps({
 
 const show = ref(false)
 function open() { show.value = true }
+
+// 右上角「帮助」按钮（MainLayout）通过 wms:open-page-help 事件触发当前页帮助抽屉
+onMounted(() => window.addEventListener('wms:open-page-help', open))
+onBeforeUnmount(() => window.removeEventListener('wms:open-page-help', open))
 </script>
 
 <style scoped>

bj_power_wms_client/frontend/src/layouts/MainLayout.vue

@@ -12,6 +12,7 @@ const route = useRoute()
 const router = useRouter()
 
 const user = getUser()
+const userName = computed(() => user?.realName || user?.username || '未登录')
 const pageTitle = computed(() => route.meta?.title || '')
 
 const menus = [
@@ -27,6 +28,19 @@ const menus = [
   { path: '/base-data', title: '基础数据', icon: EditPen }
 ]
 
+// 打开当前页面帮助（各页面 PageHelp 监听 wms:open-page-help 事件弹出抽屉）
+function openHelp() {
+  window.dispatchEvent(new CustomEvent('wms:open-page-help'))
+}
+
+function onUserCmd(cmd) {
+  if (cmd === 'password') {
+    router.push('/change-password')
+  } else if (cmd === 'logout') {
+    onLogout()
+  }
+}
+
 function onLogout() {
   logout()
   ElMessage.success('已退出登录')
@@ -57,8 +71,16 @@ function onLogout() {
         <el-button text type="primary" @click="router.push('/display')">
           <el-icon style="margin-right:4px"><Monitor /></el-icon>免登录大屏
         </el-button>
-        <el-tag effect="plain">{{ user?.realName || user?.username || '未登录' }}</el-tag>
-        <el-button text type="danger" @click="onLogout">退出登录</el-button>
+        <el-button class="help-btn" text @click="openHelp">帮助</el-button>
+        <el-dropdown trigger="click" @command="onUserCmd">
+          <span class="user-name">{{ userName }} <span class="caret">▾</span></span>
+          <template #dropdown>
+            <el-dropdown-menu>
+              <el-dropdown-item command="password">修改密码</el-dropdown-item>
+              <el-dropdown-item divided command="logout">退出登录</el-dropdown-item>
+            </el-dropdown-menu>
+          </template>
+        </el-dropdown>
       </el-header>
       <el-main class="main">
         <router-view />
@@ -83,5 +105,12 @@ function onLogout() {
 }
 .title { font-size: 16px; font-weight: 600; }
 .spacer { flex: 1; }
+.help-btn { font-size: 13px; color: #606266; }
+.user-name {
+  display: inline-flex; align-items: center; gap: 4px; cursor: pointer;
+  font-size: 14px; color: #303133; outline: none; padding: 4px 6px; border-radius: 4px;
+}
+.user-name:hover { color: #1668dc; background: #f2f6fc; }
+.caret { font-size: 10px; color: #909399; }
 .main { background: #f0f2f5; padding: 14px; overflow: auto; }
 </style>

bj_power_wms_client/frontend/src/pages/ChangePassword.vue

@@ -0,0 +1,63 @@
+<template>
+  <el-card style="max-width:480px;margin-top:20px">
+    <template #header><b>修改我的密码</b></template>
+    <el-alert type="warning" :closable="false" style="margin-bottom:16px"
+      title="密码修改成功后需重新登录" />
+    <el-form :model="form" label-width="100px" @submit.prevent>
+      <el-form-item label="旧密码">
+        <el-input v-model="form.oldPassword" type="password" show-password
+          placeholder="请输入当前密码" />
+      </el-form-item>
+      <el-form-item label="新密码">
+        <el-input v-model="form.newPassword" type="password" show-password
+          placeholder="至少 6 位" />
+      </el-form-item>
+      <el-form-item label="确认新密码">
+        <el-input v-model="form.confirmPassword" type="password" show-password
+          placeholder="请再次输入新密码" />
+      </el-form-item>
+      <el-form-item>
+        <el-button type="primary" :loading="loading" @click="submit">保存</el-button>
+        <el-button @click="reset">重置</el-button>
+      </el-form-item>
+    </el-form>
+  </el-card>
+</template>
+
+<script setup>
+import { reactive, ref } from 'vue'
+import { ElMessage } from 'element-plus'
+import { useRouter } from 'vue-router'
+import { logout } from '../utils/auth'
+import request from '../utils/request'
+
+const router = useRouter()
+const loading = ref(false)
+const form = reactive({ oldPassword: '', newPassword: '', confirmPassword: '' })
+
+async function submit() {
+  if (!form.oldPassword || !form.newPassword) return ElMessage.warning('请填写旧密码和新密码')
+  if (form.newPassword !== form.confirmPassword) return ElMessage.warning('两次输入的新密码不一致')
+  if (form.newPassword.length < 6) return ElMessage.warning('新密码长度至少 6 位')
+  loading.value = true
+  try {
+    await request.post('/user/change-password', {
+      oldPassword: form.oldPassword,
+      newPassword: form.newPassword
+    })
+    ElMessage.success('密码修改成功，请重新登录')
+    logout()
+    router.replace('/login')
+  } catch (e) {
+    /* 错误已由请求拦截器提示 */
+  } finally {
+    loading.value = false
+  }
+}
+
+function reset() {
+  form.oldPassword = ''
+  form.newPassword = ''
+  form.confirmPassword = ''
+}
+</script>

bj_power_wms_client/frontend/src/router/index.js

@@ -18,7 +18,8 @@ const routes = [
       { path: 'semi', name: 'Semi', component: () => import('../pages/Semi.vue'), meta: { title: '半成品/成品' } },
       { path: 'package', name: 'Package', component: () => import('../pages/Package.vue'), meta: { title: '包装绑定' } },
       { path: 'ledger', name: 'Ledger', component: () => import('../pages/Ledger.vue'), meta: { title: '备料台账' } },
-      { path: 'base-data', name: 'BaseData', component: () => import('../pages/BaseData.vue'), meta: { title: '基础数据' } }
+      { path: 'base-data', name: 'BaseData', component: () => import('../pages/BaseData.vue'), meta: { title: '基础数据' } },
+      { path: 'change-password', name: 'ChangePassword', component: () => import('../pages/ChangePassword.vue'), meta: { title: '修改密码' } }
     ]
   },
   { path: '/:pathMatch(.*)*', redirect: '/' }