feat: initialize new React application structure with TypeScript, ESLint, and Prettier configurations, while removing legacy files and adding new components and pages for enhanced functionality

src/types/auth.ts

@@ -0,0 +1,28 @@
+/**
+ * 认证相关类型定义
+ * 基于原项目 src/modules/login.js 和 src/core/connection.js
+ */
+
+// 登录凭据
+export interface LoginCredentials {
+  apiBase: string;
+  managementKey: string;
+}
+
+// 认证状态
+export interface AuthState {
+  isAuthenticated: boolean;
+  apiBase: string;
+  managementKey: string;
+  serverVersion: string | null;
+  serverBuildDate: string | null;
+}
+
+// 连接状态
+export type ConnectionStatus = 'connected' | 'disconnected' | 'connecting' | 'error';
+
+export interface ConnectionInfo {
+  status: ConnectionStatus;
+  lastCheck: Date | null;
+  error: string | null;
+}