diff --git a/CLAUDE.md b/CLAUDE.md
index b9a01a8..996caa3 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -147,10 +147,10 @@
   3. 生产反代需规划 admin 域的头像/品牌公开端点：`/api/public/*` 按租户 Host 解析，admin 域直挂必 404——开发期靠 Vite Host 改写代理，生产要么同源反代改 Host（单租户形态）要么前端改用租户域名绝对 URL。
   4. `VITE_TENANT_PREVIEW_HOST` 单一预览域名：开发代理只指向一个租户 Host，切换租户时头像等公开资源预览不准（.env.development 已注记）。
   5. ~~resolver 平台默认回退链接入 platform_settings~~（Phase 4 Task 5A 完成：`app/platform/settings_store.py` 内存快照 + lifespan 装载 + PUT settings 后 refresh 热刷新；config_views 的 email/ai 两组改三级回退（租户槽位 → 平台设置快照 → env），push 无平台推荐键保持两级；平台设置页"仅存储"注记移除）。
-  6. **email/test 与 push/test 速率限制**（终审 I-3 记档）：两测试端点无限流，复用登录限流器模式收口。
-  7. **锁屏功能已摘除入口**（终审 M-1）：用户菜单项删除 + 全局组件 enabled:false 不再挂载（AES 存 localStorage + 公开模板默认密钥，防御价值为零）；代码待 Phase 4 决定删否。
-  8. **租户切换器 composable 收拢**（终审 M-3 不做记档）：仪表盘/会话/配置三页各自内联实现同一模式，收拢归后续。
-  9. **ECharts 按需收窄**（终审 M-4 不做记档）：stats 的 plugins/echarts.ts 全量注册，bundle 体积优化归后续。
+  6. ~~email/test 与 push/test 速率限制~~（Phase 4 Task 5B 完成：config_routes 内 `SlidingWindowCounter` 滑动窗限流（登录限流器同款风格），每租户每类端点 15 分钟 5 次真实出站，超限 429；校验失败/未配置 400 不消耗预算，超限后 429 优先于一切预检）。
+  7. ~~锁屏功能已摘除入口~~ + ~~通知组件摘除~~（锁屏 Phase 3 摘入口，Phase 4 Task 5F 删代码：art-screen-lock/art-notification 组件目录、component.ts/headerBar.ts 配置项、useHeaderBar.shouldShowNotification、类型字段、components.d.ts 条目、crypto-js 依赖（env.d.ts 声明/package.json/optimizeDeps/lockfile）、en/zh 孤儿语言键全部清除，grep 零残留）。
+  8. ~~租户切换器 composable 收拢~~（Phase 4 Task 5E 完成：`admin/src/composables/useTenantOptions.ts` 收拢会话/配置/统计三页租户下拉（默认形态选中首个 + bootstrapTenantContext 引导；stats 用 selectFirst:false 纯数据源）；dashboard 卡片墙形态不在此列）。
+  9. ~~ECharts 按需收窄~~（Phase 4 Task 5D 完成：echarts.use 收窄为 Bar/Line/Pie + Title/Tooltip/Grid/Legend + CanvasRenderer——全仓 grep 证实存活消费方仅 stats 页与 useChart；echarts chunk 767,864 B → 559,737 B（-27%），dist 总体积 -273 KB）。
 
 ## 文档索引
 
diff --git a/admin/package.json b/admin/package.json
index ae6762f..d63263c 100644
--- a/admin/package.json
+++ b/admin/package.json
@@ -36,7 +36,6 @@
     "@vue/reactivity": "^3.5.21",
     "@vueuse/core": "^13.9.0",
     "axios": "^1.12.2",
-    "crypto-js": "^4.2.0",
     "echarts": "^6.0.0",
     "element-plus": "^2.11.2",
     "mitt": "^3.0.1",
diff --git a/admin/pnpm-lock.yaml b/admin/pnpm-lock.yaml
index 71e1870..72e4413 100644
--- a/admin/pnpm-lock.yaml
+++ b/admin/pnpm-lock.yaml
@@ -26,9 +26,6 @@ importers:
       axios:
         specifier: ^1.12.2
         version: 1.12.2
-      crypto-js:
-        specifier: ^4.2.0
-        version: 4.2.0
       echarts:
         specifier: ^6.0.0
         version: 6.0.0
@@ -1375,9 +1372,6 @@ packages:
     resolution: {integrity: sha512-uV2QOWP2nWzsy2aMp8aRibhi9dlzF5Hgh5SHaB9OiTGEyDTiJJyx0uy51QXdyWbtAHNua4XJzUKca3OzKUd3vA==}
     engines: {node: '>= 8'}
 
-  crypto-js@4.2.0:
-    resolution: {integrity: sha512-KALDyEYgpY+Rlob/iriUtjV6d5Eq+Y191A5g4UqLAi8CyGP9N1+FdVbkc1SxKc2r4YAYqG8JzO2KGL+AizD70Q==}
-
   css-functions-list@3.2.3:
     resolution: {integrity: sha512-IQOkD3hbR5KrN93MtcYuad6YPuTSUhntLHDuLEbFWE+ff2/XSZNdZG+LcbbIW5AXKg/WFIfYItIzVoHngHXZzA==}
     engines: {node: '>=12 || >=16'}
@@ -4224,8 +4218,6 @@ snapshots:
       shebang-command: 2.0.0
       which: 2.0.2
 
-  crypto-js@4.2.0: {}
-
   css-functions-list@3.2.3: {}
 
   css-tree@3.1.0:
diff --git a/admin/src/components/core/layouts/art-header-bar/index.vue b/admin/src/components/core/layouts/art-header-bar/index.vue
index 4e3c8f9..7055b1e 100644
--- a/admin/src/components/core/layouts/art-header-bar/index.vue
+++ b/admin/src/components/core/layouts/art-header-bar/index.vue
@@ -109,16 +109,6 @@
           </template>
         </ElDropdown>
 
-        <!-- 通知按钮 -->
-        <ArtIconButton
-          v-if="shouldShowNotification"
-          icon="ri:notification-2-line"
-          class="notice-button relative"
-          @click="visibleNotice"
-        >
-          <div class="absolute top-2 right-2 size-1.5 !bg-danger rounded-full"></div>
-        </ArtIconButton>
-
         <!-- 聊天按钮 -->
         <ArtIconButton
           v-if="shouldShowChat"
@@ -162,9 +152,6 @@
 
     <!-- 标签页 -->
     <ArtWorkTab />
-
-    <!-- 通知 -->
-    <ArtNotification v-model:value="showNotice" ref="notice" />
   </div>
 </template>
 
@@ -205,7 +192,6 @@
     shouldShowBreadcrumb,
     shouldShowGlobalSearch,
     shouldShowFullscreen,
-    shouldShowNotification,
     shouldShowChat,
     shouldShowLanguage,
     shouldShowSettings,
@@ -219,9 +205,6 @@
   const { language } = storeToRefs(userStore)
   const { menuList } = storeToRefs(menuStore)
 
-  const showNotice = ref(false)
-  const notice = ref(null)
-
   // 菜单类型判断
   const isLeftMenu = computed(() => menuType.value === MenuTypeEnum.LEFT)
   const isDualMenu = computed(() => menuType.value === MenuTypeEnum.DUAL_MENU)
@@ -232,11 +215,6 @@
 
   onMounted(() => {
     initLanguage()
-    document.addEventListener('click', bodyCloseNotice)
-  })
-
-  onUnmounted(() => {
-    document.removeEventListener('click', bodyCloseNotice)
   })
 
   /**
@@ -310,31 +288,6 @@
     mittBus.emit('openSearchDialog')
   }
 
-  /**
-   * 点击页面其他区域关闭通知面板
-   * @param {Event} e - 点击事件对象
-   */
-  const bodyCloseNotice = (e: any): void => {
-    if (!showNotice.value) return
-
-    const target = e.target as HTMLElement
-
-    // 检查是否点击了通知按钮或通知面板内部
-    const isNoticeButton = target.closest('.notice-button')
-    const isNoticePanel = target.closest('.art-notification-panel')
-
-    if (!isNoticeButton && !isNoticePanel) {
-      showNotice.value = false
-    }
-  }
-
-  /**
-   * 切换通知面板显示状态
-   */
-  const visibleNotice = (): void => {
-    showNotice.value = !showNotice.value
-  }
-
   /**
    * 打开聊天窗口
    */
@@ -457,10 +410,6 @@
     animation: shrink 0.6s forwards;
   }
 
-  .notice-button:hover :deep(.art-svg-icon) {
-    animation: shake 0.5s ease-in-out;
-  }
-
   .chat-button:hover :deep(.art-svg-icon) {
     animation: shake 0.5s ease-in-out;
   }
diff --git a/admin/src/components/core/layouts/art-notification/index.vue b/admin/src/components/core/layouts/art-notification/index.vue
deleted file mode 100644
index a58853c..0000000
--- a/admin/src/components/core/layouts/art-notification/index.vue
+++ /dev/null
@@ -1,456 +0,0 @@
-<!-- 通知组件 -->
-<template>
-  <div
-    class="art-notification-panel art-card-sm !shadow-xl"
-    :style="{
-      transform: show ? 'scaleY(1)' : 'scaleY(0.9)',
-      opacity: show ? 1 : 0
-    }"
-    v-show="visible"
-    @click.stop
-  >
-    <div class="flex-cb px-3.5 mt-3.5">
-      <span class="text-base font-medium text-g-800">{{ $t('notice.title') }}</span>
-      <span class="text-xs text-g-800 px-1.5 py-1 c-p select-none rounded hover:bg-g-200">
-        {{ $t('notice.btnRead') }}
-      </span>
-    </div>
-
-    <ul class="box-border flex items-end w-full h-12.5 px-3.5 border-b-d">
-      <li
-        v-for="(item, index) in barList"
-        :key="index"
-        class="h-12 leading-12 mr-5 overflow-hidden text-[13px] text-g-700 c-p select-none"
-        :class="{ 'bar-active': barActiveIndex === index }"
-        @click="changeBar(index)"
-      >
-        {{ item.name }} ({{ item.num }})
-      </li>
-    </ul>
-
-    <div class="w-full h-[calc(100%-95px)]">
-      <div class="h-[calc(100%-60px)] overflow-y-scroll scrollbar-thin">
-        <!-- 通知 -->
-        <ul v-show="barActiveIndex === 0">
-          <li
-            v-for="(item, index) in noticeList"
-            :key="index"
-            class="box-border flex-c px-3.5 py-3.5 c-p last:border-b-0 hover:bg-g-200/60"
-          >
-            <div
-              class="size-9 leading-9 text-center rounded-lg flex-cc"
-              :class="[getNoticeStyle(item.type).iconClass]"
-            >
-              <ArtSvgIcon class="text-lg !bg-transparent" :icon="getNoticeStyle(item.type).icon" />
-            </div>
-            <div class="w-[calc(100%-45px)] ml-3.5">
-              <h4 class="text-sm font-normal leading-5.5 text-g-900">{{ item.title }}</h4>
-              <p class="mt-1.5 text-xs text-g-500">{{ item.time }}</p>
-            </div>
-          </li>
-        </ul>
-
-        <!-- 消息 -->
-        <ul v-show="barActiveIndex === 1">
-          <li
-            v-for="(item, index) in msgList"
-            :key="index"
-            class="box-border flex-c px-3.5 py-3.5 c-p last:border-b-0 hover:bg-g-200/60"
-          >
-            <div class="w-9 h-9">
-              <img :src="item.avatar" class="w-full h-full rounded-lg" />
-            </div>
-            <div class="w-[calc(100%-45px)] ml-3.5">
-              <h4 class="text-xs font-normal leading-5.5">{{ item.title }}</h4>
-              <p class="mt-1.5 text-xs text-g-500">{{ item.time }}</p>
-            </div>
-          </li>
-        </ul>
-
-        <!-- 待办 -->
-        <ul v-show="barActiveIndex === 2">
-          <li
-            v-for="(item, index) in pendingList"
-            :key="index"
-            class="box-border px-5 py-3.5 last:border-b-0"
-          >
-            <h4>{{ item.title }}</h4>
-            <p class="text-xs text-g-500">{{ item.time }}</p>
-          </li>
-        </ul>
-
-        <!-- 空状态 -->
-        <div
-          v-show="currentTabIsEmpty"
-          class="relative top-25 h-full text-g-500 text-center !bg-transparent"
-        >
-          <ArtSvgIcon icon="system-uicons:inbox" class="text-5xl" />
-          <p class="mt-3.5 text-xs !bg-transparent"
-            >{{ $t('notice.text[0]') }}{{ barList[barActiveIndex].name }}</p
-          >
-        </div>
-      </div>
-
-      <div class="relative box-border w-full px-3.5">
-        <ElButton class="w-full mt-3" @click="handleViewAll" v-ripple>
-          {{ $t('notice.viewAll') }}
-        </ElButton>
-      </div>
-    </div>
-
-    <div class="h-25"></div>
-  </div>
-</template>
-
-<script setup lang="ts">
-  import { computed, ref, watch, type Ref, type ComputedRef } from 'vue'
-  import { useI18n } from 'vue-i18n'
-
-  // 导入头像图片
-  import avatar1 from '@/assets/images/avatar/avatar1.webp'
-  import avatar2 from '@/assets/images/avatar/avatar2.webp'
-  import avatar3 from '@/assets/images/avatar/avatar3.webp'
-  import avatar4 from '@/assets/images/avatar/avatar4.webp'
-  import avatar5 from '@/assets/images/avatar/avatar5.webp'
-  import avatar6 from '@/assets/images/avatar/avatar6.webp'
-
-  defineOptions({ name: 'ArtNotification' })
-
-  interface NoticeItem {
-    /** 标题 */
-    title: string
-    /** 时间 */
-    time: string
-    /** 类型 */
-    type: NoticeType
-  }
-
-  interface MessageItem {
-    /** 标题 */
-    title: string
-    /** 时间 */
-    time: string
-    /** 头像 */
-    avatar: string
-  }
-
-  interface PendingItem {
-    /** 标题 */
-    title: string
-    /** 时间 */
-    time: string
-  }
-
-  interface BarItem {
-    /** 名称 */
-    name: ComputedRef<string>
-    /** 数量 */
-    num: number
-  }
-
-  interface NoticeStyle {
-    /** 图标 */
-    icon: string
-    /** icon 样式 */
-    iconClass: string
-  }
-
-  type NoticeType = 'email' | 'message' | 'collection' | 'user' | 'notice'
-
-  const { t } = useI18n()
-
-  const props = defineProps<{
-    value: boolean
-  }>()
-
-  const emit = defineEmits<{
-    'update:value': [value: boolean]
-  }>()
-
-  const show = ref(false)
-  const visible = ref(false)
-  const barActiveIndex = ref(0)
-
-  const useNotificationData = () => {
-    // 通知数据
-    const noticeList = ref<NoticeItem[]>([
-      {
-        title: '新增国际化',
-        time: '2024-6-13 0:10',
-        type: 'notice'
-      },
-      {
-        title: '冷月呆呆给你发了一条消息',
-        time: '2024-4-21 8:05',
-        type: 'message'
-      },
-      {
-        title: '小肥猪关注了你',
-        time: '2020-3-17 21:12',
-        type: 'collection'
-      },
-      {
-        title: '新增使用文档',
-        time: '2024-02-14 0:20',
-        type: 'notice'
-      },
-      {
-        title: '小肥猪给你发了一封邮件',
-        time: '2024-1-20 0:15',
-        type: 'email'
-      },
-      {
-        title: '菜单mock本地真实数据',
-        time: '2024-1-17 22:06',
-        type: 'notice'
-      }
-    ])
-
-    // 消息数据
-    const msgList = ref<MessageItem[]>([
-      {
-        title: '池不胖 关注了你',
-        time: '2021-2-26 23:50',
-        avatar: avatar1
-      },
-      {
-        title: '唐不苦 关注了你',
-        time: '2021-2-21 8:05',
-        avatar: avatar2
-      },
-      {
-        title: '中小鱼 关注了你',
-        time: '2020-1-17 21:12',
-        avatar: avatar3
-      },
-      {
-        title: '何小荷 关注了你',
-        time: '2021-01-14 0:20',
-        avatar: avatar4
-      },
-      {
-        title: '誶誶淰 关注了你',
-        time: '2020-12-20 0:15',
-        avatar: avatar5
-      },
-      {
-        title: '冷月呆呆 关注了你',
-        time: '2020-12-17 22:06',
-        avatar: avatar6
-      }
-    ])
-
-    // 待办数据
-    const pendingList = ref<PendingItem[]>([])
-
-    // 标签栏数据
-    const barList = computed<BarItem[]>(() => [
-      {
-        name: computed(() => t('notice.bar[0]')),
-        num: noticeList.value.length
-      },
-      {
-        name: computed(() => t('notice.bar[1]')),
-        num: msgList.value.length
-      },
-      {
-        name: computed(() => t('notice.bar[2]')),
-        num: pendingList.value.length
-      }
-    ])
-
-    return {
-      noticeList,
-      msgList,
-      pendingList,
-      barList
-    }
-  }
-
-  // 样式管理
-  const useNotificationStyles = () => {
-    const noticeStyleMap: Record<NoticeType, NoticeStyle> = {
-      email: {
-        icon: 'ri:mail-line',
-        iconClass: 'bg-warning/12 text-warning'
-      },
-      message: {
-        icon: 'ri:volume-down-line',
-        iconClass: 'bg-success/12 text-success'
-      },
-      collection: {
-        icon: 'ri:heart-3-line',
-        iconClass: 'bg-danger/12 text-danger'
-      },
-      user: {
-        icon: 'ri:volume-down-line',
-        iconClass: 'bg-info/12 text-info'
-      },
-      notice: {
-        icon: 'ri:notification-3-line',
-        iconClass: 'bg-theme/12 text-theme'
-      }
-    }
-
-    const getNoticeStyle = (type: NoticeType): NoticeStyle => {
-      const defaultStyle: NoticeStyle = {
-        icon: 'ri:arrow-right-circle-line',
-        iconClass: 'bg-theme/12 text-theme'
-      }
-
-      return noticeStyleMap[type] || defaultStyle
-    }
-
-    return {
-      getNoticeStyle
-    }
-  }
-
-  // 动画管理
-  const useNotificationAnimation = () => {
-    const showNotice = (open: boolean) => {
-      if (open) {
-        visible.value = true
-        setTimeout(() => {
-          show.value = true
-        }, 5)
-      } else {
-        show.value = false
-        setTimeout(() => {
-          visible.value = false
-        }, 350)
-      }
-    }
-
-    return {
-      showNotice
-    }
-  }
-
-  // 标签页管理
-  const useTabManagement = (
-    noticeList: Ref<NoticeItem[]>,
-    msgList: Ref<MessageItem[]>,
-    pendingList: Ref<PendingItem[]>,
-    businessHandlers: {
-      handleNoticeAll: () => void
-      handleMsgAll: () => void
-      handlePendingAll: () => void
-    }
-  ) => {
-    const changeBar = (index: number) => {
-      barActiveIndex.value = index
-    }
-
-    // 检查当前标签页是否为空
-    const currentTabIsEmpty = computed(() => {
-      const tabDataMap = [noticeList.value, msgList.value, pendingList.value]
-
-      const currentData = tabDataMap[barActiveIndex.value]
-      return currentData && currentData.length === 0
-    })
-
-    const handleViewAll = () => {
-      // 查看全部处理器映射
-      const viewAllHandlers: Record<number, () => void> = {
-        0: businessHandlers.handleNoticeAll,
-        1: businessHandlers.handleMsgAll,
-        2: businessHandlers.handlePendingAll
-      }
-
-      const handler = viewAllHandlers[barActiveIndex.value]
-      handler?.()
-
-      // 关闭通知面板
-      emit('update:value', false)
-    }
-
-    return {
-      changeBar,
-      currentTabIsEmpty,
-      handleViewAll
-    }
-  }
-
-  // 业务逻辑处理
-  const useBusinessLogic = () => {
-    const handleNoticeAll = () => {
-      // 处理查看全部通知
-      console.log('查看全部通知')
-    }
-
-    const handleMsgAll = () => {
-      // 处理查看全部消息
-      console.log('查看全部消息')
-    }
-
-    const handlePendingAll = () => {
-      // 处理查看全部待办
-      console.log('查看全部待办')
-    }
-
-    return {
-      handleNoticeAll,
-      handleMsgAll,
-      handlePendingAll
-    }
-  }
-
-  // 组合所有逻辑
-  const { noticeList, msgList, pendingList, barList } = useNotificationData()
-  const { getNoticeStyle } = useNotificationStyles()
-  const { showNotice } = useNotificationAnimation()
-  const { handleNoticeAll, handleMsgAll, handlePendingAll } = useBusinessLogic()
-  const { changeBar, currentTabIsEmpty, handleViewAll } = useTabManagement(
-    noticeList,
-    msgList,
-    pendingList,
-    { handleNoticeAll, handleMsgAll, handlePendingAll }
-  )
-
-  // 监听属性变化
-  watch(
-    () => props.value,
-    (newValue) => {
-      showNotice(newValue)
-    }
-  )
-</script>
-
-<style scoped>
-  @reference '@styles/core/tailwind.css';
-
-  .art-notification-panel {
-    @apply absolute 
-    top-14.5 
-    right-5 
-    w-90 
-    h-125 
-    overflow-hidden 
-    transition-all 
-    duration-300
-    origin-top 
-    will-change-[top,left] 
-    max-[640px]:top-[65px]
-    max-[640px]:right-0
-    max-[640px]:w-full 
-    max-[640px]:h-[80vh];
-  }
-
-  .bar-active {
-    color: var(--theme-color) !important;
-    border-bottom: 2px solid var(--theme-color);
-  }
-
-  .scrollbar-thin::-webkit-scrollbar {
-    width: 5px !important;
-  }
-
-  .dark .scrollbar-thin::-webkit-scrollbar-track {
-    background-color: var(--default-box-color);
-  }
-
-  .dark .scrollbar-thin::-webkit-scrollbar-thumb {
-    background-color: #222 !important;
-  }
-</style>
diff --git a/admin/src/components/core/layouts/art-screen-lock/index.vue b/admin/src/components/core/layouts/art-screen-lock/index.vue
deleted file mode 100644
index d7002a9..0000000
--- a/admin/src/components/core/layouts/art-screen-lock/index.vue
+++ /dev/null
@@ -1,522 +0,0 @@
-<!-- 锁屏 -->
-<template>
-  <div class="layout-lock-screen">
-    <!-- 开发者工具警告覆盖层 -->
-    <div
-      v-if="showDevToolsWarning"
-      class="fixed top-0 left-0 z-[999999] flex-cc w-full h-full text-white bg-gradient-to-br from-[#1e1e1e] to-black animate-fade-in"
-    >
-      <div class="p-5 text-center select-none">
-        <div class="mb-7.5 text-5xl">🔒</div>
-        <h1 class="m-0 mb-5 text-3xl font-semibold text-danger">系统已锁定</h1>
-        <p class="max-w-125 m-0 text-lg leading-relaxed text-white">
-          检测到开发者工具已打开<br />
-          为了系统安全，请关闭开发者工具后继续使用
-        </p>
-        <div class="mt-7.5 text-sm text-gray-400">Security Lock Activated</div>
-      </div>
-    </div>
-
-    <!-- 锁屏弹窗 -->
-    <div v-if="!isLock">
-      <ElDialog v-model="visible" :width="370" :show-close="false" @open="handleDialogOpen">
-        <div class="flex-c flex-col">
-          <img class="w-16 h-16 rounded-full" src="@imgs/user/avatar.webp" alt="用户头像" />
-          <div class="mt-7.5 mb-3.5 text-base font-medium">{{ userInfo.userName }}</div>
-          <ElForm
-            ref="formRef"
-            :model="formData"
-            :rules="rules"
-            class="w-[90%]"
-            @submit.prevent="handleLock"
-          >
-            <ElFormItem prop="password">
-              <ElInput
-                v-model="formData.password"
-                type="password"
-                :placeholder="$t('lockScreen.lock.inputPlaceholder')"
-                :show-password="true"
-                autocomplete="new-password"
-                ref="lockInputRef"
-                class="w-full mt-9"
-                @keyup.enter="handleLock"
-              >
-                <template #suffix>
-                  <ElIcon class="c-p" @click="handleLock">
-                    <Lock />
-                  </ElIcon>
-                </template>
-              </ElInput>
-            </ElFormItem>
-            <ElButton type="primary" class="w-full mt-0.5" @click="handleLock" v-ripple>
-              {{ $t('lockScreen.lock.btnText') }}
-            </ElButton>
-          </ElForm>
-        </div>
-      </ElDialog>
-    </div>
-
-    <!-- 解锁界面 -->
-    <div v-else class="unlock-content">
-      <div class="flex-c flex-col w-80">
-        <img class="w-16 h-16 mt-5 rounded-full" src="@imgs/user/avatar.webp" alt="用户头像" />
-        <div class="mt-3 mb-3.5 text-base font-medium">
-          {{ userInfo.userName }}
-        </div>
-        <ElForm
-          ref="unlockFormRef"
-          :model="unlockForm"
-          :rules="rules"
-          class="w-full !px-2.5"
-          @submit.prevent="handleUnlock"
-        >
-          <ElFormItem prop="password">
-            <ElInput
-              v-model="unlockForm.password"
-              type="password"
-              :placeholder="$t('lockScreen.unlock.inputPlaceholder')"
-              :show-password="true"
-              autocomplete="new-password"
-              ref="unlockInputRef"
-              class="mt-5"
-            >
-              <template #suffix>
-                <ElIcon class="c-p" @click="handleUnlock">
-                  <Unlock />
-                </ElIcon>
-              </template>
-            </ElInput>
-          </ElFormItem>
-
-          <ElButton type="primary" class="w-full mt-2" @click="handleUnlock" v-ripple>
-            {{ $t('lockScreen.unlock.btnText') }}
-          </ElButton>
-          <div class="w-full text-center">
-            <ElButton
-              text
-              class="mt-2.5 !text-g-600 hover:!text-theme hover:!bg-transparent"
-              @click="toLogin"
-            >
-              {{ $t('lockScreen.unlock.backBtnText') }}
-            </ElButton>
-          </div>
-        </ElForm>
-      </div>
-    </div>
-  </div>
-</template>
-
-<script setup lang="ts">
-  import { Lock, Unlock } from '@element-plus/icons-vue'
-  import type { FormInstance, FormRules } from 'element-plus'
-  import { useI18n } from 'vue-i18n'
-  import CryptoJS from 'crypto-js'
-  import { useUserStore } from '@/store/modules/user'
-  import { useAuthStore } from '@/store/modules/auth'
-  import { mittBus } from '@/utils/sys'
-
-  // 国际化
-  const { t } = useI18n()
-
-  // 环境变量
-  const ENCRYPT_KEY = import.meta.env.VITE_LOCK_ENCRYPT_KEY
-
-  // Store
-  const userStore = useUserStore()
-  const authStore = useAuthStore()
-  const { info: userInfo, lockPassword, isLock } = storeToRefs(userStore)
-
-  // 响应式数据
-  const visible = ref<boolean>(false)
-  const lockInputRef = ref<any>(null)
-  const unlockInputRef = ref<any>(null)
-  const showDevToolsWarning = ref<boolean>(false)
-
-  // 表单相关
-  const formRef = ref<FormInstance>()
-  const unlockFormRef = ref<FormInstance>()
-
-  const formData = reactive({
-    password: ''
-  })
-
-  const unlockForm = reactive({
-    password: ''
-  })
-
-  // 表单验证规则
-  const rules = computed<FormRules>(() => ({
-    password: [
-      {
-        required: true,
-        message: t('lockScreen.lock.inputPlaceholder'),
-        trigger: 'blur'
-      }
-    ]
-  }))
-
-  // 检测是否为移动设备
-  const isMobile = () => {
-    return /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(
-      navigator.userAgent
-    )
-  }
-
-  // 添加禁用控制台的函数
-  const disableDevTools = () => {
-    // 禁用右键菜单
-    const handleContextMenu = (e: Event) => {
-      if (isLock.value) {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-    }
-    document.addEventListener('contextmenu', handleContextMenu, true)
-
-    // 禁用开发者工具相关快捷键
-    const handleKeyDown = (e: KeyboardEvent) => {
-      if (!isLock.value) return
-
-      // 禁用 F12
-      if (e.key === 'F12') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-
-      // 禁用 Ctrl+Shift+I/J/C/K (开发者工具)
-      if (e.ctrlKey && e.shiftKey) {
-        const key = e.key.toLowerCase()
-        if (['i', 'j', 'c', 'k'].includes(key)) {
-          e.preventDefault()
-          e.stopPropagation()
-          return false
-        }
-      }
-
-      // 禁用 Ctrl+U (查看源代码)
-      if (e.ctrlKey && e.key.toLowerCase() === 'u') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-
-      // 禁用 Ctrl+S (保存页面)
-      if (e.ctrlKey && e.key.toLowerCase() === 's') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-
-      // 禁用 Ctrl+A (全选)
-      if (e.ctrlKey && e.key.toLowerCase() === 'a') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-
-      // 禁用 Ctrl+P (打印)
-      if (e.ctrlKey && e.key.toLowerCase() === 'p') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-
-      // 禁用 Ctrl+F (查找)
-      if (e.ctrlKey && e.key.toLowerCase() === 'f') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-
-      // 禁用 Alt+Tab (切换窗口)
-      if (e.altKey && e.key === 'Tab') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-
-      // 禁用 Ctrl+Tab (切换标签页)
-      if (e.ctrlKey && e.key === 'Tab') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-
-      // 禁用 Ctrl+W (关闭标签页)
-      if (e.ctrlKey && e.key.toLowerCase() === 'w') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-
-      // 禁用 Ctrl+R 和 F5 (刷新页面)
-      if ((e.ctrlKey && e.key.toLowerCase() === 'r') || e.key === 'F5') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-
-      // 禁用 Ctrl+Shift+R (强制刷新)
-      if (e.ctrlKey && e.shiftKey && e.key.toLowerCase() === 'r') {
-        e.preventDefault()
-        e.stopPropagation()
-        return false
-      }
-    }
-    document.addEventListener('keydown', handleKeyDown, true)
-
-    // 禁用选择文本
-    const handleSelectStart = (e: Event) => {
-      if (isLock.value) {
-        e.preventDefault()
-        return false
-      }
-    }
-    document.addEventListener('selectstart', handleSelectStart, true)
-
-    // 禁用拖拽
-    const handleDragStart = (e: Event) => {
-      if (isLock.value) {
-        e.preventDefault()
-        return false
-      }
-    }
-    document.addEventListener('dragstart', handleDragStart, true)
-
-    // 监听开发者工具打开状态（仅在桌面端启用）
-    let devtools = { open: false }
-    const threshold = 160
-    let devToolsInterval: ReturnType<typeof setInterval> | null = null
-
-    const checkDevTools = () => {
-      if (!isLock.value || isMobile()) return
-
-      const isDevToolsOpen =
-        window.outerHeight - window.innerHeight > threshold ||
-        window.outerWidth - window.innerWidth > threshold
-
-      if (isDevToolsOpen && !devtools.open) {
-        devtools.open = true
-        showDevToolsWarning.value = true
-      } else if (!isDevToolsOpen && devtools.open) {
-        devtools.open = false
-        showDevToolsWarning.value = false
-      }
-    }
-
-    // 仅在桌面端启用开发者工具检测
-    if (!isMobile()) {
-      devToolsInterval = setInterval(checkDevTools, 500)
-    }
-
-    // 返回清理函数
-    return () => {
-      document.removeEventListener('contextmenu', handleContextMenu, true)
-      document.removeEventListener('keydown', handleKeyDown, true)
-      document.removeEventListener('selectstart', handleSelectStart, true)
-      document.removeEventListener('dragstart', handleDragStart, true)
-      if (devToolsInterval) {
-        clearInterval(devToolsInterval)
-      }
-    }
-  }
-
-  // 工具函数
-  const verifyPassword = (inputPassword: string, storedPassword: string): boolean => {
-    try {
-      const decryptedPassword = CryptoJS.AES.decrypt(storedPassword, ENCRYPT_KEY).toString(
-        CryptoJS.enc.Utf8
-      )
-      return inputPassword === decryptedPassword
-    } catch (error) {
-      console.error('密码解密失败:', error)
-      return false
-    }
-  }
-
-  // 事件处理函数
-  const handleKeydown = (event: KeyboardEvent) => {
-    if (event.altKey && event.key.toLowerCase() === '¬') {
-      event.preventDefault()
-      visible.value = true
-    }
-  }
-
-  const handleDialogOpen = () => {
-    setTimeout(() => {
-      lockInputRef.value?.input?.focus()
-    }, 100)
-  }
-
-  const handleLock = async () => {
-    if (!formRef.value) return
-
-    await formRef.value.validate((valid, fields) => {
-      if (valid) {
-        const encryptedPassword = CryptoJS.AES.encrypt(formData.password, ENCRYPT_KEY).toString()
-        userStore.setLockStatus(true)
-        userStore.setLockPassword(encryptedPassword)
-        visible.value = false
-        formData.password = ''
-      } else {
-        console.error('表单验证失败:', fields)
-      }
-    })
-  }
-
-  const handleUnlock = async () => {
-    if (!unlockFormRef.value) return
-
-    await unlockFormRef.value.validate((valid, fields) => {
-      if (valid) {
-        const isValid = verifyPassword(unlockForm.password, lockPassword.value)
-
-        if (isValid) {
-          try {
-            userStore.setLockStatus(false)
-            userStore.setLockPassword('')
-            unlockForm.password = ''
-            visible.value = false
-            showDevToolsWarning.value = false
-          } catch (error) {
-            console.error('更新store失败:', error)
-          }
-        } else {
-          // 触发抖动动画
-          const inputElement = unlockInputRef.value?.$el
-          if (inputElement) {
-            inputElement.classList.add('shake-animation')
-            setTimeout(() => {
-              inputElement.classList.remove('shake-animation')
-            }, 300)
-          }
-          ElMessage.error(t('lockScreen.pwdError'))
-          unlockForm.password = ''
-        }
-      } else {
-        console.error('表单验证失败:', fields)
-      }
-    })
-  }
-
-  const toLogin = () => {
-    // 锁屏页"返回登录"：先撤销后端 token，再走本地清理 + 跳登录
-    void authStore.logout()
-  }
-
-  const openLockScreen = () => {
-    visible.value = true
-  }
-
-  // 监听锁屏状态变化
-  watch(isLock, (newValue) => {
-    if (newValue) {
-      document.body.style.overflow = 'hidden'
-      setTimeout(() => {
-        unlockInputRef.value?.input?.focus()
-      }, 100)
-    } else {
-      document.body.style.overflow = 'auto'
-      showDevToolsWarning.value = false
-    }
-  })
-
-  // 存储清理函数
-  let cleanupDevTools: (() => void) | null = null
-
-  // 生命周期钩子
-  onMounted(() => {
-    mittBus.on('openLockScreen', openLockScreen)
-    document.addEventListener('keydown', handleKeydown)
-
-    if (isLock.value) {
-      visible.value = true
-      setTimeout(() => {
-        unlockInputRef.value?.input?.focus()
-      }, 100)
-    }
-
-    // 初始化禁用开发者工具功能
-    cleanupDevTools = disableDevTools()
-  })
-
-  onUnmounted(() => {
-    document.removeEventListener('keydown', handleKeydown)
-    document.body.style.overflow = 'auto'
-    // 清理禁用开发者工具的事件监听器
-    if (cleanupDevTools) {
-      cleanupDevTools()
-      cleanupDevTools = null
-    }
-  })
-</script>
-
-<style lang="scss" scoped>
-  .layout-lock-screen :deep(.el-dialog) {
-    border-radius: 10px;
-  }
-
-  .unlock-content {
-    position: fixed;
-    inset: 0;
-    z-index: 2500;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    overflow: hidden;
-    background-color: #fff;
-    background-image: url('@imgs/lock/bg_light.webp');
-    background-size: cover;
-    transition: transform 0.3s ease-in-out;
-  }
-
-  .dark {
-    .unlock-content {
-      background-image: url('@imgs/lock/bg_dark.webp');
-    }
-  }
-
-  @keyframes fade-in {
-    from {
-      opacity: 0;
-      transform: scale(0.9);
-    }
-
-    to {
-      opacity: 1;
-      transform: scale(1);
-    }
-  }
-
-  .animate-fade-in {
-    animation: fade-in 0.3s ease-in-out;
-  }
-
-  @keyframes shake {
-    0%,
-    100% {
-      transform: translateX(0);
-    }
-
-    10%,
-    30%,
-    50%,
-    70%,
-    90% {
-      transform: translateX(-10px);
-    }
-
-    20%,
-    40%,
-    60%,
-    80% {
-      transform: translateX(10px);
-    }
-  }
-
-  .shake-animation {
-    animation: shake 0.5s ease-in-out;
-  }
-</style>
diff --git a/admin/src/config/modules/component.ts b/admin/src/config/modules/component.ts
index dc0e244..c8d51b4 100644
--- a/admin/src/config/modules/component.ts
+++ b/admin/src/config/modules/component.ts
@@ -37,17 +37,6 @@ export const globalComponentsConfig: GlobalComponentConfig[] = [
     ),
     enabled: true
   },
-  {
-    name: '锁屏',
-    key: 'screen-lock',
-    component: defineAsyncComponent(
-      () => import('@/components/core/layouts/art-screen-lock/index.vue')
-    ),
-    // 入口已摘除（Phase 3 终审 M-1）：锁屏把真实密码 AES 存 localStorage
-    // 且密钥是公开模板默认值，防御价值为零——enabled: false 连全局挂载
-    // 也不注册；组件代码保留，Phase 4 决定删否。
-    enabled: false
-  },
   {
     name: '聊天窗口',
     key: 'chat-window',
diff --git a/admin/src/config/modules/headerBar.ts b/admin/src/config/modules/headerBar.ts
index d1c908b..fda1c66 100644
--- a/admin/src/config/modules/headerBar.ts
+++ b/admin/src/config/modules/headerBar.ts
@@ -38,12 +38,6 @@ export const headerBarConfig: HeaderBarFeatureConfig = {
     enabled: true,
     description: '全屏切换功能'
   },
-  notification: {
-    // 入口已摘除（Phase 3 终审 M-2）：模板通知中心是硬编码演示数据，
-    // 无真实数据源——enabled: false 隐藏铃铛；组件保留，接真数据源时再开。
-    enabled: false,
-    description: '通知中心，显示系统通知和消息'
-  },
   chat: {
     enabled: true,
     description: '聊天功能，提供实时沟通'
diff --git a/admin/src/env.d.ts b/admin/src/env.d.ts
index 73846e2..4b31ada 100644
--- a/admin/src/env.d.ts
+++ b/admin/src/env.d.ts
@@ -2,7 +2,5 @@
 
 declare module 'nprogress'
 
-declare module 'crypto-js'
-
 // 全局变量声明
 declare const __APP_VERSION__: string // 版本号
diff --git a/admin/src/hooks/core/useHeaderBar.ts b/admin/src/hooks/core/useHeaderBar.ts
index be10712..46b31f2 100644
--- a/admin/src/hooks/core/useHeaderBar.ts
+++ b/admin/src/hooks/core/useHeaderBar.ts
@@ -83,11 +83,6 @@ export function useHeaderBar() {
     return isFeatureEnabled('fullscreen')
   })
 
-  // 检查通知中心是否显示
-  const shouldShowNotification = computed(() => {
-    return isFeatureEnabled('notification')
-  })
-
   // 检查聊天功能是否显示
   const shouldShowChat = computed(() => {
     return isFeatureEnabled('chat')
@@ -179,7 +174,6 @@ export function useHeaderBar() {
     shouldShowBreadcrumb, // 是否显示面包屑
     shouldShowGlobalSearch, // 是否显示全局搜索
     shouldShowFullscreen, // 是否显示全屏按钮
-    shouldShowNotification, // 是否显示通知中心
     shouldShowChat, // 是否显示聊天功能
     shouldShowLanguage, // 是否显示语言切换
     shouldShowSettings, // 是否显示设置面板
diff --git a/admin/src/locales/langs/en.json b/admin/src/locales/langs/en.json
index b98b778..0411d48 100644
--- a/admin/src/locales/langs/en.json
+++ b/admin/src/locales/langs/en.json
@@ -20,7 +20,6 @@
     },
     "user": {
       "changePassword": "Change Password",
-      "lockScreen": "Lock Screen",
       "logout": "Log Out"
     },
     "guide": {
@@ -122,19 +121,6 @@
       "resetFailed": "Reset failed, please refresh the page and try again"
     }
   },
-  "notice": {
-    "title": "Notice",
-    "btnRead": "Mark as read",
-    "bar": [
-      "Notice",
-      "Message",
-      "Todo"
-    ],
-    "text": [
-      "No"
-    ],
-    "viewAll": "View all"
-  },
   "worktab": {
     "btn": {
       "refresh": "Refresh",
@@ -167,18 +153,6 @@
       "message": "Welcome back"
     }
   },
-  "lockScreen": {
-    "pwdError": "Password error",
-    "lock": {
-      "inputPlaceholder": "Please input lock screen password",
-      "btnText": "Lock"
-    },
-    "unlock": {
-      "inputPlaceholder": "Please input unlock password",
-      "btnText": "Unlock",
-      "backBtnText": "Back to login"
-    }
-  },
   "greeting": {
     "dawn": "Good morning!",
     "morning": "Good morning!",
diff --git a/admin/src/locales/langs/zh.json b/admin/src/locales/langs/zh.json
index cddf7ca..59605a5 100644
--- a/admin/src/locales/langs/zh.json
+++ b/admin/src/locales/langs/zh.json
@@ -20,7 +20,6 @@
     },
     "user": {
       "changePassword": "修改密码",
-      "lockScreen": "锁定屏幕",
       "logout": "退出登录"
     },
     "guide": {
@@ -122,19 +121,6 @@
       "resetFailed": "重置失败，请刷新页面后重试"
     }
   },
-  "notice": {
-    "title": "通知",
-    "btnRead": "标为已读",
-    "bar": [
-      "通知",
-      "消息",
-      "代办"
-    ],
-    "text": [
-      "暂无"
-    ],
-    "viewAll": "查看全部"
-  },
   "worktab": {
     "btn": {
       "refresh": "刷新",
@@ -167,18 +153,6 @@
       "message": "欢迎回来"
     }
   },
-  "lockScreen": {
-    "pwdError": "密码错误",
-    "lock": {
-      "inputPlaceholder": "请输入锁屏密码",
-      "btnText": "锁定"
-    },
-    "unlock": {
-      "inputPlaceholder": "请输入解锁密码",
-      "btnText": "解锁",
-      "backBtnText": "返回登录"
-    }
-  },
   "greeting": {
     "dawn": "凌晨了！",
     "morning": "上午好！",
diff --git a/admin/src/types/config/index.ts b/admin/src/types/config/index.ts
index dd144de..13eb3db 100644
--- a/admin/src/types/config/index.ts
+++ b/admin/src/types/config/index.ts
@@ -198,8 +198,6 @@ export interface HeaderBarFeatureConfig {
   globalSearch: FeatureConfigItem
   /** 全屏功能 */
   fullscreen: FeatureConfigItem
-  /** 通知功能 */
-  notification: FeatureConfigItem
   /** 聊天功能 */
   chat: FeatureConfigItem
   /** 多语言切换 */
diff --git a/admin/src/types/import/components.d.ts b/admin/src/types/import/components.d.ts
index b9177ab..8c21561 100644
--- a/admin/src/types/import/components.d.ts
+++ b/admin/src/types/import/components.d.ts
@@ -40,14 +40,12 @@ declare module 'vue' {
     ArtLogo: typeof import('./../../components/core/base/art-logo/index.vue')['default']
     ArtMenuRight: typeof import('./../../components/core/others/art-menu-right/index.vue')['default']
     ArtMixedMenu: typeof import('./../../components/core/layouts/art-menus/art-mixed-menu/index.vue')['default']
-    ArtNotification: typeof import('./../../components/core/layouts/art-notification/index.vue')['default']
     ArtPageContent: typeof import('./../../components/core/layouts/art-page-content/index.vue')['default']
     ArtProgressCard: typeof import('./../../components/core/cards/art-progress-card/index.vue')['default']
     ArtRadarChart: typeof import('./../../components/core/charts/art-radar-chart/index.vue')['default']
     ArtResultPage: typeof import('./../../components/core/views/result/ArtResultPage.vue')['default']
     ArtRingChart: typeof import('./../../components/core/charts/art-ring-chart/index.vue')['default']
     ArtScatterChart: typeof import('./../../components/core/charts/art-scatter-chart/index.vue')['default']
-    ArtScreenLock: typeof import('./../../components/core/layouts/art-screen-lock/index.vue')['default']
     ArtSearchBar: typeof import('./../../components/core/forms/art-search-bar/index.vue')['default']
     ArtSettingsPanel: typeof import('./../../components/core/layouts/art-settings-panel/index.vue')['default']
     ArtSidebarMenu: typeof import('./../../components/core/layouts/art-menus/art-sidebar-menu/index.vue')['default']
diff --git a/admin/src/utils/sys/mittBus.ts b/admin/src/utils/sys/mittBus.ts
index 22f0108..ca28b29 100644
--- a/admin/src/utils/sys/mittBus.ts
+++ b/admin/src/utils/sys/mittBus.ts
@@ -13,7 +13,7 @@
  * ## 使用场景
  *
  * - 跨层级组件通信
- * - 全局功能触发（设置、搜索、聊天、锁屏等）
+ * - 全局功能触发（设置、搜索、聊天等）
  * - 特效触发（烟花效果）
  * - 避免 props 层层传递
  *
@@ -36,7 +36,6 @@
  * - openSetting: 打开设置面板
  * - openSearchDialog: 打开搜索对话框
  * - openChat: 打开聊天窗口
- * - openLockScreen: 打开锁屏
  *
  * @module utils/sys/mittBus
  * @author Art Design Pro Team
@@ -53,8 +52,6 @@ type Events = {
   openSearchDialog: void
   // 打开聊天窗口事件 - 无参数
   openChat: void
-  // 打开锁屏事件 - 无参数
-  openLockScreen: void
 }
 
 // 创建类型安全的事件总线实例
diff --git a/admin/vite.config.ts b/admin/vite.config.ts
index 3a25ff6..e63d482 100644
--- a/admin/vite.config.ts
+++ b/admin/vite.config.ts
@@ -139,7 +139,6 @@ export default ({ mode }: { mode: string }) => {
         'echarts/charts',
         'echarts/components',
         'echarts/renderers',
-        'crypto-js',
         'element-plus/es',
         'element-plus/es/components/*/style/css',
         'element-plus/es/components/*/style/index'