fix: replace project pagination footer with scroll-to-load batches

src/features/projects/ProjectsPage.vue

@@ -1,7 +1,16 @@
 <script setup lang="ts">
-import { computed, h, ref, watch } from 'vue'
+import { computed, h, nextTick, ref, watch } from 'vue'
 import { RouterLink, useRouter } from 'vue-router'
-import { NAlert, NButton, NDataTable, NInput, NRadioButton, NRadioGroup, type DataTableColumns } from 'naive-ui'
+import {
+    NAlert,
+    NButton,
+    NDataTable,
+    NInput,
+    NRadioButton,
+    NRadioGroup,
+    type DataTableColumns,
+    type DataTableInst
+} from 'naive-ui'
 import { RefreshCw, Search } from '@lucide/vue'
 import WorkspacePage from '../../components/ui/WorkspacePage.vue'
 import { usePolling } from '../../composables/usePolling'
@@ -13,11 +22,14 @@ import CreateProjectDialog from './components/CreateProjectDialog.vue'
 
 /** 项目表格使用固定表头与独立滚动；搜索筛选仍作用于真实接口数据。 */
 const router = useRouter()
-/** 列表已有刷新按钮，只在进入、筛选切换和手动刷新时读取。 */
+/** 列表已有刷新按钮，只在进入和手动刷新时读取；筛选在完整结果中进行。 */
 const query = usePolling(ref('projects'), (_, signal) => projectsApi.list(signal), false)
 const search = ref('')
 const filter = ref('all')
-const page = ref(1)
+/** 接口暂未分页：对完整查询结果分批展示，滚动时追加而非切换页码。 */
+const PAGE_SIZE = 20
+const visibleCount = ref(PAGE_SIZE)
+const table = ref<DataTableInst | null>(null)
 const projects = computed(() => query.data.value ?? [])
 const filtered = computed(() =>
     projects.value.filter(item => {
@@ -34,9 +46,20 @@ const filters = [
     { value: 'need_review', label: '待审核' },
     { value: 'failed', label: '失败' }
 ]
-watch([search, filter], () => {
-    page.value = 1
+const visibleProjects = computed(() => filtered.value.slice(0, visibleCount.value))
+/** 条件或接口数据更新后从首批重新展示，避免保留旧列表的滚动位置。 */
+watch([search, filter, query.data], async () => {
+    visibleCount.value = PAGE_SIZE
+    await nextTick()
+    table.value?.scrollTo({ top: 0 })
 })
+/** 靠近表格底部时追加下一批，保留已有行与当前位置。 */
+function loadMore(event: Event) {
+    const scroller = event.target as HTMLElement | null
+    if (!scroller || query.loading.value || visibleCount.value >= filtered.value.length) return
+    if (scroller.scrollHeight - scroller.scrollTop - scroller.clientHeight > 120) return
+    visibleCount.value = Math.min(visibleCount.value + PAGE_SIZE, filtered.value.length)
+}
 /** 表格列通过正式项目 ID 跳转，不依赖列表索引。 */
 const columns: DataTableColumns<Project> = [
     {
@@ -58,7 +81,7 @@ const columns: DataTableColumns<Project> = [
 function openProject(id: string) {
     void router.push('/projects/' + encodeURIComponent(id) + '/create-drama')
 }
-/** 清空条件后返回第一页，不改变后端数据。 */
+/** 清空条件后返回首批，不改变后端数据。 */
 function clearFilters() {
     search.value = ''
     filter.value = 'all'
@@ -115,18 +138,19 @@ function clearFilters() {
         >
         <div class="project-table-area">
             <NDataTable
+                ref="table"
                 class="project-data-table"
                 :bordered="false"
                 :bottom-bordered="false"
                 striped
                 :columns="columns"
-                :data="filtered"
+                :data="visibleProjects"
                 :row-key="row => row.id"
                 :loading="query.loading.value"
                 flex-height
                 table-layout="fixed"
                 :scroll-x="785"
-                :pagination="{ page, pageSize: 20, onUpdatePage: (value: number) => (page = value) }"
+                @scroll="loadMore"
             >
                 <template #empty
                     ><div>
@@ -144,11 +168,6 @@ function clearFilters() {
                 >
             </NDataTable>
         </div>
-        <p class="text-xs text-muted">
-            共 {{ filtered.length }} 个项目<span v-if="query.updatedAt.value">
-                · 更新于 {{ formatDate(query.updatedAt.value) }}</span
-            >
-        </p>
     </WorkspacePage>
 </template>