修复下一页图标不显示问题，增加缓存前端配置页面

ui/src/services/cache.ts

@@ -0,0 +1,72 @@
+import apiService from './api';
+import type { ApiResponse } from '@/types';
+
+export interface CacheConfig {
+  maxAge: number;
+  maxSize: number;
+  cleanupInterval: number;
+  enabled: boolean;
+  proxy: {
+    enabled: boolean;
+    timeout: number;
+    retryCount: number;
+    retryDelay: number;
+  };
+  allowedExtensions: string[];
+  lastUpdated: string;
+}
+
+export interface CacheStats {
+  fileCount: number;
+  totalSize: number;
+  maxSize: number;
+  maxAge: number;
+  usagePercentage: number;
+}
+
+class CacheService {
+  /**
+   * 获取缓存统计信息
+   */
+  async getCacheStats(): Promise<ApiResponse<CacheStats>> {
+    return apiService.get<CacheStats>('/api/proxy/cache/stats');
+  }
+
+  /**
+   * 获取缓存配置
+   */
+  async getCacheConfig(): Promise<ApiResponse<CacheConfig>> {
+    return apiService.get<CacheConfig>('/api/proxy/cache/config');
+  }
+
+  /**
+   * 更新缓存配置
+   */
+  async updateCacheConfig(config: Partial<CacheConfig>): Promise<ApiResponse<CacheConfig>> {
+    return apiService.put<CacheConfig>('/api/proxy/cache/config', config);
+  }
+
+  /**
+   * 重置缓存配置为默认值
+   */
+  async resetCacheConfig(): Promise<ApiResponse<CacheConfig>> {
+    return apiService.post<CacheConfig>('/api/proxy/cache/config/reset');
+  }
+
+  /**
+   * 清理所有缓存
+   */
+  async clearAllCache(): Promise<ApiResponse<{ message: string }>> {
+    return apiService.delete<{ message: string }>('/api/proxy/cache');
+  }
+
+  /**
+   * 清理过期缓存
+   */
+  async clearExpiredCache(): Promise<ApiResponse<{ message: string }>> {
+    return apiService.delete<{ message: string }>('/api/proxy/cache/expired');
+  }
+}
+
+export const cacheService = new CacheService();
+export default cacheService;