feat(admin): 列表支持按系统筛选，用户列补语义标签

- 收藏/点赞/观看增加「全部系统 / Android / iOS」下拉
- 用户列第二行标注 UID，游客行标注设备，避免一串字母看不出含义

src/views/userManagement/LikesView.vue

@@ -15,8 +15,20 @@ const TARGET_OPTIONS = [
   { value: 'EPISODE', label: '剧集' },
   { value: 'COMMENT', label: '评论' }
 ]
+const PLATFORM_OPTIONS = [
+  { value: '', label: '全部系统' },
+  { value: 'ANDROID', label: 'Android' },
+  { value: 'IOS', label: 'iOS' }
+]
 
-const filters = reactive({ keyword: '', deviceId: '', dramaTitle: '', range: null, targetType: '' })
+const filters = reactive({
+  keyword: '',
+  deviceId: '',
+  dramaTitle: '',
+  range: null,
+  targetType: '',
+  platform: ''
+})
 const rows = ref([])
 const total = ref(0)
 const loading = ref(false)
@@ -33,6 +45,7 @@ async function load() {
       deviceId: filters.deviceId.trim() || undefined,
       dramaTitle: filters.dramaTitle.trim() || undefined,
       targetType: filters.targetType || undefined,
+      platform: filters.platform || undefined,
       startTime: filters.range?.[0] || undefined,
       endTime: filters.range?.[1] || undefined
     })
@@ -49,7 +62,14 @@ function search() {
 }
 
 function resetFilters() {
-  Object.assign(filters, { keyword: '', deviceId: '', dramaTitle: '', range: null, targetType: '' })
+  Object.assign(filters, {
+    keyword: '',
+    deviceId: '',
+    dramaTitle: '',
+    range: null,
+    targetType: '',
+    platform: ''
+  })
   search()
 }
 
@@ -108,6 +128,14 @@ onMounted(load)
           :value="item.value"
         />
       </el-select>
+      <el-select v-model="filters.platform" class="console-select" placeholder="全部系统">
+        <el-option
+          v-for="item in PLATFORM_OPTIONS"
+          :key="item.value"
+          :label="item.label"
+          :value="item.value"
+        />
+      </el-select>
       <el-date-picker
         v-model="filters.range"
         class="engagement-range"