feat: finalize core modules and gateway

src/Modules/TakeoutSaaS.Module.Sms/Services/AliyunSmsSender.cs

@@ -0,0 +1,35 @@
+using System.Net.Http;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+using TakeoutSaaS.Module.Sms.Abstractions;
+using TakeoutSaaS.Module.Sms.Models;
+using TakeoutSaaS.Module.Sms.Options;
+
+namespace TakeoutSaaS.Module.Sms.Services;
+
+/// <summary>
+/// 阿里云短信发送实现（简化版，占位可扩展正式签名流程）。
+/// </summary>
+public sealed class AliyunSmsSender(IHttpClientFactory httpClientFactory, IOptionsMonitor<SmsOptions> optionsMonitor, ILogger<AliyunSmsSender> logger)
+    : ISmsSender
+{
+    private readonly IHttpClientFactory _httpClientFactory = httpClientFactory;
+
+    /// <inheritdoc />
+    public SmsProviderKind Provider => SmsProviderKind.Aliyun;
+
+    /// <inheritdoc />
+    public Task<SmsSendResult> SendAsync(SmsSendRequest request, CancellationToken cancellationToken = default)
+    {
+        var options = optionsMonitor.CurrentValue;
+        if (options.UseMock)
+        {
+            logger.LogInformation("Mock 发送阿里云短信到 {Phone}, Template:{Template}", request.PhoneNumber, request.TemplateCode);
+            return Task.FromResult(new SmsSendResult { Success = true, Message = "Mocked" });
+        }
+
+        // 占位：保留待接入阿里云正式签名流程，当前返回未实现。
+        logger.LogWarning("阿里云短信尚未启用，请配置腾讯云或开启 UseMock。");
+        return Task.FromResult(new SmsSendResult { Success = false, Message = "Aliyun SMS not enabled" });
+    }
+}