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/gateway-pop/dist/client.d.ts

@@ -0,0 +1,35 @@
+/// <reference types="node" />
+import SPI, * as $SPI from '@alicloud/gateway-spi';
+export default class Client extends SPI {
+    _sha256: string;
+    _sm3: string;
+    constructor();
+    modifyConfiguration(context: $SPI.InterceptorContext, attributeMap: $SPI.AttributeMap): Promise<void>;
+    modifyRequest(context: $SPI.InterceptorContext, attributeMap: $SPI.AttributeMap): Promise<void>;
+    modifyResponse(context: $SPI.InterceptorContext, attributeMap: $SPI.AttributeMap): Promise<void>;
+    getEndpoint(productId: string, regionId: string, endpointRule: string, network: string, suffix: string, endpointMap: {
+        [key: string]: string;
+    }, endpoint: string): string;
+    defaultAny(inputValue: any, defaultValue: any): any;
+    getAuthorization(pathname: string, method: string, query: {
+        [key: string]: string;
+    }, headers: {
+        [key: string]: string;
+    }, signatureAlgorithm: string, payload: string, ak: string, signingkey: Buffer, product: string, region: string, date: string): Promise<string>;
+    getSignature(pathname: string, method: string, query: {
+        [key: string]: string;
+    }, headers: {
+        [key: string]: string;
+    }, signatureAlgorithm: string, payload: string, signingkey: Buffer): Promise<string>;
+    getSigningkey(signatureAlgorithm: string, secret: string, product: string, region: string, date: string): Promise<Buffer>;
+    getRegion(product: string, endpoint: string): string;
+    buildCanonicalizedResource(query: {
+        [key: string]: string;
+    }): Promise<string>;
+    buildCanonicalizedHeaders(headers: {
+        [key: string]: string;
+    }): Promise<string>;
+    getSignedHeaders(headers: {
+        [key: string]: string;
+    }): Promise<string[]>;
+}