feat: 添加多项功能和修复

功能新增:
- OSS 存储使用情况显示（文件页面）
- OSS 当日流量统计（阿里云云监控API）
- 分享页面路由修复（/s/xxx 格式支持）

Bug修复:
- 修复分享页面资源路径（相对路径改绝对路径）
- 修复分享码获取逻辑（支持路径格式）
- 修复OSS配额undefined显示问题
- 修复登录流程OSS配置检查
- 修复文件数为null时的显示问题

依赖更新:
- 添加 @alicloud/cms20190101 云监控SDK
- 添加 @alicloud/openapi-client

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/node_modules/@alicloud/openapi-util/dist/client.d.ts

@@ -0,0 +1,108 @@
+/// <reference types="node" />
+/**
+ * This is for OpenApi Util
+ */
+import * as $tea from '@alicloud/tea-typescript';
+export default class Client {
+    /**
+     * Convert all params of body other than type of readable into content
+     * @param input source Model
+     * @param output target Model
+     * @return void
+     */
+    static convert(input: $tea.Model, output: $tea.Model): void;
+    /**
+     * Get the string to be signed according to request
+     * @param request  which contains signed messages
+     * @return the signed string
+     */
+    static getStringToSign(request: $tea.Request): string;
+    /**
+     * Get signature according to stringToSign, secret
+     * @param stringToSign  the signed string
+     * @param secret accesskey secret
+     * @return the signature
+     */
+    static getROASignature(stringToSign: string, secret: string): string;
+    /**
+     * Parse filter into a form string
+     * @param filter object
+     * @return the string
+     */
+    static toForm(filter: {
+        [key: string]: any;
+    }): string;
+    /**
+     * Get timestamp
+     * @return the timestamp string
+     */
+    static getTimestamp(): string;
+    /**
+     * Parse filter into a object which's type is map[string]string
+     * @param filter query param
+     * @return the object
+     */
+    static query(filter: {
+        [key: string]: any;
+    }): {
+        [key: string]: string;
+    };
+    /**
+     * Get signature according to signedParams, method and secret
+     * @param signedParams params which need to be signed
+     * @param method http method e.g. GET
+     * @param secret AccessKeySecret
+     * @return the signature
+     */
+    static getRPCSignature(signedParams: {
+        [key: string]: string;
+    }, method: string, secret: string): string;
+    /**
+     * Parse array into a string with specified style
+     * @param array the array
+     * @param prefix the prefix string
+     * @style specified style e.g. repeatList
+     * @return the string
+     */
+    static arrayToStringWithSpecifiedStyle(array: any, prefix: string, style: string): string;
+    /**
+     * Transform input as map.
+     */
+    static parseToMap(input: any): {
+        [key: string]: any;
+    };
+    static getEndpoint(endpoint: string, serverUse: boolean, endpointType: string): string;
+    /**
+    * Encode raw with base16
+    * @param raw encoding data
+    * @return encoded string
+    */
+    static hexEncode(raw: Buffer): string;
+    /**
+     * Hash the raw data with signatureAlgorithm
+     * @param raw hashing data
+     * @param signatureAlgorithm the autograph method
+     * @return hashed bytes
+    */
+    static hash(raw: Buffer, signatureAlgorithm: string): Buffer;
+    static signatureMethod(secret: string, source: string, signatureAlgorithm: string): Buffer;
+    /**
+     * Get the authorization
+     * @param request request params
+     * @param signatureAlgorithm the autograph method
+     * @param payload the hashed request
+     * @param acesskey the acesskey string
+     * @param accessKeySecret the accessKeySecret string
+     * @return authorization string
+     */
+    static getAuthorization(request: $tea.Request, signatureAlgorithm: string, payload: string, acesskey: string, accessKeySecret: string): string;
+    static getEncodePath(path: string): string;
+    static getEncodeParam(param: string): string;
+    /**
+     * Transform a map to a flat style map where keys are prefixed with length info.
+     * Map keys are transformed from "key" to "#length#key" format.
+     * @param object the input object (can be a Model, Array, Map, or other types)
+     * @return the transformed object
+     */
+    static mapToFlatStyle(object: any): any;
+}