feat: 分页组件支持 pageSize 浏览器缓存

- 为 Pagination 组件添加 cacheKey 属性，支持将 pageSize 缓存到 localStorage
- 组件挂载时自动恢复缓存的 pageSize 设置
- 为各页面的分页组件配置独立的缓存键
- 仅在显示 pageSize 选择器时启用缓存恢复

Closes #105

Co-Authored-By: AAEE86 <33052466+AAEE86@users.noreply.github.com>

frontend/src/views/admin/AuditLogs.vue

@@ -302,6 +302,7 @@
           :total="totalRecords"
           :page-size="pageSize"
           :page-size-options="[10, 20, 50, 100]"
+          cache-key="audit-logs-page-size"
           @update:current="handlePageChange"
           @update:page-size="pageSize = $event; currentPage = 1; loadLogs()"
         />

frontend/src/views/admin/CacheMonitoring.vue

@@ -702,6 +702,7 @@ onBeforeUnmount(() => {
         :current="currentPage"
         :total="affinityList.length"
         :page-size="pageSize"
+        cache-key="cache-monitoring-page-size"
         @update:current="currentPage = $event; handlePageChange()"
         @update:page-size="pageSize = $event"
       />

frontend/src/views/admin/ModelManagement.vue

@@ -402,6 +402,7 @@
           :current="catalogCurrentPage"
           :total="filteredGlobalModels.length"
           :page-size="catalogPageSize"
+          cache-key="model-management-page-size"
           @update:current="catalogCurrentPage = $event"
           @update:page-size="catalogPageSize = $event"
         />

frontend/src/views/admin/ProviderManagement.vue

@@ -420,6 +420,7 @@
         :current="currentPage"
         :total="filteredProviders.length"
         :page-size="pageSize"
+        cache-key="provider-management-page-size"
         @update:current="currentPage = $event"
         @update:page-size="pageSize = $event"
       />

frontend/src/views/admin/Users.vue

@@ -498,6 +498,7 @@
         :current="currentPage"
         :total="filteredUsers.length"
         :page-size="pageSize"
+        cache-key="users-page-size"
         @update:current="currentPage = $event"
         @update:page-size="pageSize = $event"
       />

frontend/src/views/user/Announcements.vue

@@ -310,6 +310,7 @@
         :current="currentPage"
         :total="total"
         :page-size="pageSize"
+        cache-key="announcements-page-size"
         @update:current="loadAnnouncements($event)"
         @update:page-size="pageSize = $event; loadAnnouncements(1)"
       />

frontend/src/views/user/ManagementTokens.vue

@@ -301,6 +301,7 @@
         :current="currentPage"
         :total="totalTokens"
         :page-size="pageSize"
+        cache-key="management-tokens-page-size"
         @update:current="currentPage = $event"
         @update:page-size="handlePageSizeChange"
       />

frontend/src/views/user/ModelCatalog.vue

@@ -312,6 +312,7 @@
         :current="currentPage"
         :total="filteredModels.length"
         :page-size="pageSize"
+        cache-key="model-catalog-page-size"
         @update:current="currentPage = $event"
         @update:page-size="pageSize = $event"
       />

frontend/src/views/user/MyApiKeys.vue

@@ -339,6 +339,7 @@
         :current="currentPage"
         :total="apiKeys.length"
         :page-size="pageSize"
+        cache-key="my-api-keys-page-size"
         @update:current="currentPage = $event"
         @update:page-size="pageSize = $event"
       />