feat: 初始化后台管理模块与基础业务框架

1.  新增依赖注入生命周期标记接口、基础仓储与管理员仓储实现
2.  新增管理员认证与用户服务接口，补充认证相关DTO
3.  重构实体审计字段命名，统一Created/UpdatedAt规范
4.  新增大量业务实体类与API版本枚举配置
5.  集成Autofac依赖注入、JWT自动刷新与跨域配置
6.  替换原有微信小程序与旧认证服务为后台管理系统架构
7.  完善Swagger文档配置与项目基础部署配置

QYZH.InteractiveMagazine.Infrastructure/Middleware/CorsExtension.cs

@@ -0,0 +1,42 @@
+using Microsoft.AspNetCore.Builder;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace QYZH.InteractiveMagazine.Infrastructure.Middleware
+{
+    /// <summary>
+    /// 跨域扩展
+    /// </summary>
+    public static class CorsExtension
+    {
+        /// <summary>
+        /// 跨域配置
+        /// </summary>
+        /// <param name="services"></param>
+        /// <param name="configuration"></param>
+        public static void AddCorsRegister(this WebApplicationBuilder builder)
+        {
+            bool isCorsAll = builder.Configuration["corsUrls"] == "*";
+            builder.Services.AddCors(options =>
+            {
+                options.AddPolicy("defaultCors", policy =>
+                {
+                    if (isCorsAll)
+                    {
+                        policy.SetIsOriginAllowed(origin => true);
+                    }
+                    else
+                    {
+                        var corsUrls = builder.Configuration.GetSection("corsUrls").Get<string[]>();
+                        policy.WithOrigins(corsUrls ?? Array.Empty<string>());
+                    }
+                    policy.AllowAnyHeader()
+                            .AllowAnyMethod()
+                            .AllowCredentials()
+                            .WithExposedHeaders("X-New-Token");
+
+                });
+            });
+        }
+    }
+}

QYZH.InteractiveMagazine.Infrastructure/Middleware/JwtAutoRefreshMiddleware.cs

@@ -0,0 +1,79 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Configuration;
+using QYZH.InteractiveMagazine.Infrastructure.Cache;
+using QYZH.InteractiveMagazine.Models.Settings;
+using System.IdentityModel.Tokens.Jwt;
+
+namespace QYZH.InteractiveMagazine.Infrastructure.Middleware;
+
+public class JwtAutoRefreshMiddleware
+{
+    private readonly RequestDelegate _next;
+    private readonly IConfiguration _configuration;
+    private const string TokenKeyPrefix = "InteractiveMagazine:AdminAuth:Token";
+    private const int RefreshThresholdMinutes = 10;
+
+    public JwtAutoRefreshMiddleware(RequestDelegate next, IConfiguration configuration)
+    {
+        _next = next;
+        _configuration = configuration;
+    }
+
+    public async Task InvokeAsync(HttpContext context)
+    {
+        var authHeader = context.Request.Headers.Authorization.FirstOrDefault();
+        if (!string.IsNullOrEmpty(authHeader) && authHeader.StartsWith("Bearer "))
+        {
+            var token = authHeader.Substring("Bearer ".Length).Trim();
+            await TryAutoRefreshTokenAsync(context, token);
+        }
+
+        await _next(context);
+    }
+
+    private async Task TryAutoRefreshTokenAsync(HttpContext context, string token)
+    {
+        try
+        {
+            var tokenHandler = new JwtSecurityTokenHandler();
+            if (tokenHandler.ReadToken(token) is not JwtSecurityToken jwtToken)
+            {
+                return;
+            }
+
+            var expiryTime = jwtToken.ValidTo;
+            var remainingTime = expiryTime - DateTime.Now;
+
+            if (remainingTime <= TimeSpan.FromMinutes(RefreshThresholdMinutes) && remainingTime > TimeSpan.Zero)
+            {
+                var userId = jwtToken.Claims.FirstOrDefault(c => c.Type == System.Security.Claims.ClaimTypes.NameIdentifier)?.Value;
+                var userName = jwtToken.Claims.FirstOrDefault(c => c.Type == System.Security.Claims.ClaimTypes.Name)?.Value;
+
+                if (string.IsNullOrEmpty(userId) || string.IsNullOrEmpty(userName))
+                {
+                    return;
+                }
+
+                var jwtSettings = _configuration.GetSection("JwtSettings").Get<JwtSettings>();
+                if (jwtSettings == null)
+                {
+                    return;
+                }
+
+                var newToken = QYZH.InteractiveMagazine.Infrastructure.Auth.JwtHelper.GenerateToken(
+                    long.Parse(userId), userName, jwtSettings);
+
+                await RedisHelper.StringSetAsync(
+                    $"{TokenKeyPrefix}:{userId}",
+                    newToken,
+                    TimeSpan.FromMinutes(jwtSettings.ExpiryMinutes));
+
+                context.Response.Headers["X-New-Token"] = newToken;
+            }
+        }
+        catch
+        {
+            // 忽略自动刷新异常，由后续认证中间件处理
+        }
+    }
+}