improve(ui):优化租户端页面显示效果

1. 表格占位内容居中显示
2. 在线体验菜单前移
3. 在线体验功能切换tab任务不丢失

web/tenant/src/router/tenant.ts

@@ -109,35 +109,41 @@ const tenantRoutes: RouteRecordRaw[] = [
 				component: () => import('@/views/service/ModelsPage.vue'),
 				meta: { title: '可用模型', icon: 'cube', sort: 30, roles: ['owner', 'admin', 'member'] },
 			},
+			{
+				path: 'playground',
+				name: 'TenantPlayground',
+				component: () => import('@/views/service/PlaygroundPage.vue'),
+				meta: { title: '在线体验', icon: 'terminal', sort: 31, roles: ['owner', 'admin', 'member'], badge: '⚡' },
+			},
 			{
 				path: 'model-comparison',
 				name: 'TenantModelComparison',
 				component: () => import('@/views/service/ModelComparisonPage.vue'),
-				meta: { title: '模型对比', icon: 'chart', sort: 31, roles: ['owner', 'admin', 'member'] },
+				meta: { title: '模型对比', icon: 'chart', sort: 32, roles: ['owner', 'admin', 'member'] },
 			},
 			{
 				path: 'api-keys',
 				name: 'TenantApiKeys',
 				component: () => import('@/views/service/ApiKeysPage.vue'),
-				meta: { title: 'API 密钥', icon: 'key', sort: 32, roles: ['owner', 'admin', 'member'], viewportTable: true },
+				meta: { title: 'API 密钥', icon: 'key', sort: 33, roles: ['owner', 'admin', 'member'], viewportTable: true },
 			},
 			{
 				path: 'usage-logs',
 				name: 'TenantUsageLogs',
 				component: () => import('@/views/service/UsageLogsPage.vue'),
-				meta: { title: '用量日志', icon: 'chart', sort: 33, roles: ['owner', 'admin', 'member'], viewportTable: true },
+				meta: { title: '用量日志', icon: 'chart', sort: 34, roles: ['owner', 'admin', 'member'], viewportTable: true },
 			},
 			{
 				path: 'request-audit-logs',
 				name: 'TenantRequestAuditLogs',
 				component: () => import('@/views/service/RequestAuditLogsPage.vue'),
-				meta: { title: '请求审计日志', icon: 'clipboard', sort: 34, roles: ['owner', 'admin'], viewportTable: true },
+				meta: { title: '请求审计日志', icon: 'clipboard', sort: 35, roles: ['owner', 'admin'], viewportTable: true },
 			},
 			{
 				path: 'task-logs',
 				name: 'TenantTaskLogs',
 				component: () => import('@/views/service/TaskLogsPage.vue'),
-				meta: { title: '任务日志', icon: 'clock', sort: 35, roles: ['owner', 'admin', 'member'], viewportTable: true },
+				meta: { title: '任务日志', icon: 'clock', sort: 36, roles: ['owner', 'admin', 'member'], viewportTable: true },
 			},
 			// 财务 (40-49)
 			{
@@ -177,12 +183,6 @@ const tenantRoutes: RouteRecordRaw[] = [
 				component: () => import('@/views/notification/NotificationPreferencesPage.vue'),
 				meta: { title: '通知偏好', roles: ['owner', 'admin'] },
 			},
-			{
-				path: 'playground',
-				name: 'TenantPlayground',
-				component: () => import('@/views/service/PlaygroundPage.vue'),
-				meta: { title: '在线体验', icon: 'terminal', sort: 50, roles: ['owner', 'admin', 'member'], badge: '⚡' },
-			},
 			{
 				path: 'tickets',
 				name: 'TenantTickets',

web/tenant/src/styles/main.css

@@ -459,6 +459,16 @@ body.modal-open {
 		flex: 0 0 auto;
 	}
 }
+
+/* Naive UI flex-height 表格空态垂直居中：空态节点 .n-data-table-empty 自带 flex-grow:1 + 居中，
+   但其父级滚动 content（.n-scrollbar-content）默认高度塌成内容高且非 flex 容器，flex-grow 无从生效，
+   「暂无数据」会顶在表体上方。空数据时把 content 拉满表体高度并转纵向 flex 即可；
+   限定 :has(空态节点) 保证有数据时表格布局零影响 */
+.n-data-table--flex-height .n-data-table-base-table-body .n-scrollbar-content:has(> .n-data-table-empty) {
+	min-height: 100%;
+	display: flex;
+	flex-direction: column;
+}
 .table-container-flush {
 	border: 0;
 	border-radius: 0;

web/tenant/src/views/service/PlaygroundPage.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref, computed, watch } from 'vue'
+import { ref, computed, watch, type Component } from 'vue'
 import { NSelect } from 'naive-ui'
 import request from '@/utils/request'
 import ChatTab from './playground/ChatTab.vue'
@@ -39,8 +39,21 @@ const allModels = ref<ModelItem[]>([])
 
 const { apiKeys, selectedKeyId, revealedKey, loading: keyLoading, error: keyError, selectKey } = usePlaygroundApiKey()
 
-const modelsByCategory = (category: string) =>
-	computed(() => allModels.value.filter(m => m.category === category))
+// Tab 与组件的映射：六个 Tab 的 props 签名一致（models + apiKey），配合 KeepAlive
+// 按 key 缓存实例，切换 Tab 不销毁组件，对话/任务/参数等状态全部保留。
+const tabComponents: Record<string, Component> = {
+	chat: ChatTab,
+	image: ImageTab,
+	video: VideoTab,
+	audio: AudioTab,
+	embedding: EmbeddingTab,
+	rerank: RerankTab,
+}
+
+// 当前 Tab 对应分类的模型列表（传给 KeepAlive 缓存的组件，切换回来时 props 保持响应）
+const activeTabModels = computed(() =>
+	allModels.value.filter(m => m.category === activeTab.value),
+)
 
 const modelsLoading = ref(false)
 let loadingTimer: number | null = null
@@ -131,12 +144,15 @@ watch(selectedKeyId, loadModels, { immediate: true })
 		</div>
 
 		<template v-if="revealedKey">
-			<ChatTab v-if="activeTab === 'chat'" :models="modelsByCategory('chat').value" :api-key="revealedKey" />
-			<ImageTab v-if="activeTab === 'image'" :models="modelsByCategory('image').value" :api-key="revealedKey" />
-			<VideoTab v-if="activeTab === 'video'" :models="modelsByCategory('video').value" :api-key="revealedKey" />
-			<AudioTab v-if="activeTab === 'audio'" :models="modelsByCategory('audio').value" :api-key="revealedKey" />
-			<EmbeddingTab v-if="activeTab === 'embedding'" :models="modelsByCategory('embedding').value" :api-key="revealedKey" />
-			<RerankTab v-if="activeTab === 'rerank'" :models="modelsByCategory('rerank').value" :api-key="revealedKey" />
+			<!-- KeepAlive 缓存各 Tab 实例：切换不销毁，切回即恢复（含进行中的任务轮询与已生成的结果） -->
+			<KeepAlive>
+				<component
+					:is="tabComponents[activeTab]"
+					:key="activeTab"
+					:models="activeTabModels"
+					:api-key="revealedKey"
+				/>
+			</KeepAlive>
 		</template>
 	</div>
 </template>

web/tenant/src/views/service/playground/ImageTab.vue

@@ -5,6 +5,7 @@ import { createPlaygroundApi } from '@/utils/playgroundApi'
 import { createPoller } from '@/composables/usePolling'
 import { calculateCost } from './calculateCost'
 import ParamRefModal from './ParamRefModal.vue'
+import GenerationProgressCard from './GenerationProgressCard.vue'
 import Icon from '@/components/common/Icon.vue'
 import BaseSelect from '../../../components/common/BaseSelect.vue'
 
@@ -203,14 +204,6 @@ const statusLabel: Record<string, string> = {
 	SUCCESS: '已完成',
 	FAILURE: '失败',
 }
-const statusColor: Record<string, string> = {
-	SUBMITTED: 'badge-primary',
-	IN_PROGRESS: 'badge-warning',
-	NOT_START: 'badge-gray',
-	QUEUED: 'badge-gray',
-	SUCCESS: 'badge-success',
-	FAILURE: 'badge-danger',
-}
 
 // 切换模型时停止上一模型的轮询并清空结果，重置模式为默认（异步）
 watch(selectedModel, () => {
@@ -578,34 +571,29 @@ function closeZoom() {
 						<h3 class="empty-state-title">等待生成</h3>
 						<p class="empty-state-description">输入提示词并点击生成</p>
 					</div>
-					<div v-if="sending" class="flex items-center justify-center py-12">
-						<div class="spinner h-8 w-8 text-primary-600"></div>
-						<span class="ml-3 text-sm text-gray-500">{{ effectiveMode === 'async' ? '提交图片生成任务中...' : '图片生成中...' }}</span>
-					</div>
+					<!-- 提交中 / 同步生成中：卡片式加载占位 -->
+					<GenerationProgressCard
+						v-if="sending"
+						kind="image"
+						:label="effectiveMode === 'async' ? '正在提交生成任务...' : '图片生成中...'"
+					/>
 
-					<!-- 异步任务状态 -->
-					<div v-if="asyncTask && !sending" class="mb-4 space-y-3">
-						<div class="flex items-center gap-3">
-							<span class="badge" :class="statusColor[asyncTask.status] || 'badge-gray'">
-								{{ statusLabel[asyncTask.status] || asyncTask.status }}
-							</span>
-							<span v-if="asyncTask.progress" class="text-xs text-gray-500">进度: {{ asyncTask.progress }}</span>
-							<span v-if="polling" class="text-xs text-primary-600 flex items-center gap-1">
-								<div class="spinner h-3 w-3"></div>
-								轮询中
-							</span>
-							<span v-if="asyncTask.id" class="text-xs text-gray-400 ml-auto">task_id: {{ asyncTask.id }}</span>
-						</div>
-						<div v-if="asyncTask.status === 'IN_PROGRESS' || asyncTask.status === 'SUBMITTED' || asyncTask.status === 'QUEUED'" class="w-full bg-gray-100 rounded-full h-2 overflow-hidden">
-							<div class="h-full rounded-full bg-primary-500 transition-all duration-500" :style="{ width: asyncTask.progress || '10%' }" />
-						</div>
-						<div v-if="asyncTask.status === 'FAILURE'" class="rounded-xl border border-red-200 bg-red-50 p-4">
-							<div class="flex items-center gap-2 text-red-700">
-								<Icon name="xCircle" size="sm" />
-								<span class="text-sm font-medium">生成失败</span>
-							</div>
-							<p v-if="asyncTask.error" class="mt-2 text-sm text-red-600">{{ asyncTask.error }}</p>
+					<!-- 异步任务进行中：卡片式进度占位（成功由下方图片区接管） -->
+					<GenerationProgressCard
+						v-else-if="asyncTask && asyncTask.status !== 'SUCCESS' && asyncTask.status !== 'FAILURE'"
+						kind="image"
+						:progress="asyncTask.progress"
+						:label="statusLabel[asyncTask.status] || asyncTask.status"
+						:sublabel="asyncTask.id ? 'task_id: ' + asyncTask.id : ''"
+					/>
+
+					<!-- 任务失败 -->
+					<div v-if="asyncTask && asyncTask.status === 'FAILURE'" class="rounded-xl border border-red-200 bg-red-50 p-4">
+						<div class="flex items-center gap-2 text-red-700">
+							<Icon name="xCircle" size="sm" />
+							<span class="text-sm font-medium">生成失败</span>
 						</div>
+						<p v-if="asyncTask.error" class="mt-2 text-sm text-red-600">{{ asyncTask.error }}</p>
 					</div>
 
 					<div v-if="images.length > 0" class="grid grid-cols-1 sm:grid-cols-2 gap-4">

web/tenant/src/views/service/playground/VideoTab.vue

@@ -4,6 +4,7 @@ import { NInput, NInputNumber } from 'naive-ui'
 import { createPlaygroundApi } from '@/utils/playgroundApi'
 import { createPoller } from '@/composables/usePolling'
 import Icon from '@/components/common/Icon.vue'
+import GenerationProgressCard from './GenerationProgressCard.vue'
 import BaseSelect from '../../../components/common/BaseSelect.vue'
 
 interface ModelItem {
@@ -89,13 +90,6 @@ const statusLabel: Record<string, string> = {
 	failed: '失败',
 }
 
-const statusColor: Record<string, string> = {
-	queued: 'badge-gray',
-	in_progress: 'badge-warning',
-	completed: 'badge-success',
-	failed: 'badge-danger',
-}
-
 function applyResolutionPreset(val: string) {
 	resolution.value = val
 }
@@ -305,33 +299,19 @@ function downloadVideo() {
 						<p class="empty-state-description">输入提示词并点击生成</p>
 					</div>
 
-					<!-- 提交中 -->
-					<div v-if="submitting" class="flex items-center justify-center py-12">
-						<div class="spinner h-8 w-8 text-primary-600"></div>
-						<span class="ml-3 text-sm text-gray-500">提交视频生成任务中...</span>
-					</div>
+					<!-- 提交中：卡片式占位 -->
+					<GenerationProgressCard v-if="submitting" kind="video" label="正在提交生成任务..." />
 
 					<!-- 任务状态 -->
 					<div v-if="currentTask" class="space-y-4">
-						<!-- 状态信息 -->
-						<div class="flex items-center gap-3">
-							<span class="badge" :class="statusColor[currentTask.status] || 'badge-gray'">
-								{{ statusLabel[currentTask.status] || currentTask.status }}
-							</span>
-							<span v-if="currentTask.progress" class="text-xs text-gray-500">进度: {{ currentTask.progress }}</span>
-							<span v-if="polling" class="text-xs text-primary-600 flex items-center gap-1">
-								<div class="spinner h-3 w-3"></div>
-								轮询中
-							</span>
-						</div>
-
-						<!-- 进度条 -->
-						<div v-if="currentTask.status === 'in_progress' || currentTask.status === 'queued'" class="w-full bg-gray-100 rounded-full h-2 overflow-hidden">
-							<div
-								class="h-full rounded-full bg-primary-500 transition-all duration-500"
-								:style="{ width: currentTask.progress || '10%' }"
-							/>
-						</div>
+						<!-- 任务进行中：按成品 16:9 形状的卡片式进度占位 -->
+						<GenerationProgressCard
+							v-if="currentTask.status === 'queued' || currentTask.status === 'in_progress'"
+							kind="video"
+							:progress="currentTask.progress"
+							:label="statusLabel[currentTask.status] || currentTask.status"
+							:sublabel="currentTask.id ? 'task_id: ' + currentTask.id : ''"
+						/>
 
 						<!-- 视频结果 -->
 						<div v-if="currentTask.status === 'completed' && videoUrl" class="space-y-3">
@@ -342,10 +322,11 @@ function downloadVideo() {
 							</button>
 						</div>
 						<!-- 成品加载中（content 端点拉流转 blob） -->
-						<div v-else-if="currentTask.status === 'completed'" class="flex items-center justify-center py-10">
-							<div class="spinner h-6 w-6 text-primary-600"></div>
-							<span class="ml-3 text-sm text-gray-500">视频加载中...</span>
-						</div>
+						<GenerationProgressCard
+							v-else-if="currentTask.status === 'completed'"
+							kind="video"
+							label="视频加载中..."
+						/>
 
 						<!-- 错误信息 -->
 						<div v-if="currentTask.status === 'failed'" class="rounded-xl border border-red-200 bg-red-50 p-4">