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/xmlbuilder/lib/XMLAttribute.js

@@ -0,0 +1,108 @@
+// Generated by CoffeeScript 1.12.7
+(function() {
+  var NodeType, XMLAttribute, XMLNode;
+
+  NodeType = require('./NodeType');
+
+  XMLNode = require('./XMLNode');
+
+  module.exports = XMLAttribute = (function() {
+    function XMLAttribute(parent, name, value) {
+      this.parent = parent;
+      if (this.parent) {
+        this.options = this.parent.options;
+        this.stringify = this.parent.stringify;
+      }
+      if (name == null) {
+        throw new Error("Missing attribute name. " + this.debugInfo(name));
+      }
+      this.name = this.stringify.name(name);
+      this.value = this.stringify.attValue(value);
+      this.type = NodeType.Attribute;
+      this.isId = false;
+      this.schemaTypeInfo = null;
+    }
+
+    Object.defineProperty(XMLAttribute.prototype, 'nodeType', {
+      get: function() {
+        return this.type;
+      }
+    });
+
+    Object.defineProperty(XMLAttribute.prototype, 'ownerElement', {
+      get: function() {
+        return this.parent;
+      }
+    });
+
+    Object.defineProperty(XMLAttribute.prototype, 'textContent', {
+      get: function() {
+        return this.value;
+      },
+      set: function(value) {
+        return this.value = value || '';
+      }
+    });
+
+    Object.defineProperty(XMLAttribute.prototype, 'namespaceURI', {
+      get: function() {
+        return '';
+      }
+    });
+
+    Object.defineProperty(XMLAttribute.prototype, 'prefix', {
+      get: function() {
+        return '';
+      }
+    });
+
+    Object.defineProperty(XMLAttribute.prototype, 'localName', {
+      get: function() {
+        return this.name;
+      }
+    });
+
+    Object.defineProperty(XMLAttribute.prototype, 'specified', {
+      get: function() {
+        return true;
+      }
+    });
+
+    XMLAttribute.prototype.clone = function() {
+      return Object.create(this);
+    };
+
+    XMLAttribute.prototype.toString = function(options) {
+      return this.options.writer.attribute(this, this.options.writer.filterOptions(options));
+    };
+
+    XMLAttribute.prototype.debugInfo = function(name) {
+      name = name || this.name;
+      if (name == null) {
+        return "parent: <" + this.parent.name + ">";
+      } else {
+        return "attribute: {" + name + "}, parent: <" + this.parent.name + ">";
+      }
+    };
+
+    XMLAttribute.prototype.isEqualNode = function(node) {
+      if (node.namespaceURI !== this.namespaceURI) {
+        return false;
+      }
+      if (node.prefix !== this.prefix) {
+        return false;
+      }
+      if (node.localName !== this.localName) {
+        return false;
+      }
+      if (node.value !== this.value) {
+        return false;
+      }
+      return true;
+    };
+
+    return XMLAttribute;
+
+  })();
+
+}).call(this);