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/cms20190101/dist/models/AlertEvent.d.ts

@@ -0,0 +1,60 @@
+import * as $dara from '@darabonba/typescript';
+/**
+ */
+export declare class AlertEventMetrics extends $dara.Model {
+    curValue?: string;
+    metricName?: string;
+    metricNameEn?: string;
+    metricNameZh?: string;
+    operator?: string;
+    statistics?: string;
+    threshold?: string;
+    unit?: string;
+    unitFactor?: number;
+    static names(): {
+        [key: string]: string;
+    };
+    static types(): {
+        [key: string]: any;
+    };
+    validate(): void;
+    constructor(map?: {
+        [key: string]: any;
+    });
+}
+export declare class AlertEvent extends $dara.Model {
+    alertName?: string;
+    alertStatus?: string;
+    arn?: string;
+    content?: string;
+    customLabels?: {
+        [key: string]: any;
+    };
+    deDupId?: string;
+    details?: string;
+    eventName?: string;
+    eventType?: string;
+    expression?: string;
+    metrics?: AlertEventMetrics[];
+    product?: string;
+    resourceInfo?: {
+        [key: string]: any;
+    };
+    ruleName?: string;
+    severity?: string;
+    source?: string;
+    summary?: string;
+    timestamp?: number;
+    traceId?: string;
+    userId?: string;
+    static names(): {
+        [key: string]: string;
+    };
+    static types(): {
+        [key: string]: any;
+    };
+    validate(): void;
+    constructor(map?: {
+        [key: string]: any;
+    });
+}