feat(email): 添加租户 ID并更新邮件发送功能

- 在 EmailRecordService 接口中，更新 sendEmail 方法签名，添加 tenantId 参数
- 在 EmailRecordServiceImpl 中实现更新后的 sendEmail 方法，增加租户 ID 设置
- 修改 MainController 和 TenantServiceImpl 中调用 sendEmail 方法，传入租户 ID

src/main/java/com/gxwebsoft/common/system/controller/MainController.java

@@ -651,7 +651,7 @@ public class MainController extends BaseController {
         String content = title + appUrl + appName + passwordStr;
         // 发送邮件通知
         if (email != null) {
-          emailRecordService.sendEmail(title, content, email);
+          emailRecordService.sendEmail(title, content, email, addUser.getTenantId());
         }
         return success("注册成功", new LoginResult(access_token, addUser));
       }

src/main/java/com/gxwebsoft/common/system/service/EmailRecordService.java

@@ -47,5 +47,5 @@ public interface EmailRecordService extends IService<EmailRecord> {
     void sendHtmlEmail(String title, String path, Map<String, Object> map, String[] toEmails)
             throws MessagingException, IOException;
 
-    void sendEmail(String title, String content, String receiver);
+    void sendEmail(String title, String content, String receiver, Integer tenantId);
 }

src/main/java/com/gxwebsoft/common/system/service/impl/EmailRecordServiceImpl.java

@@ -72,13 +72,14 @@ public class EmailRecordServiceImpl extends ServiceImpl<EmailRecordMapper, Email
 
     @Async
     @Override
-    public void sendEmail(String title, String content, String receiver) {
+    public void sendEmail(String title, String content, String receiver, Integer tenantId) {
       // 发送邮件通知
       EmailRecord emailRecord = new EmailRecord();
       emailRecord.setTitle(title);
       emailRecord.setContent(content);
       emailRecord.setReceiver(receiver);
       emailRecord.setCreateUserId(42);
+      emailRecord.setTenantId(tenantId);
       sendTextEmail(title,content,receiver.split(","));
       save(emailRecord);
     }

src/main/java/com/gxwebsoft/common/system/service/impl/TenantServiceImpl.java

@@ -600,7 +600,7 @@ public class TenantServiceImpl extends ServiceImpl<TenantMapper, Tenant> impleme
       String content = title + appUrl + appName + adminUrl + account + password;
       // 发送邮件通知
       if (company.getEmail() != null) {
-        emailRecordService.sendEmail(title, content, company.getEmail());
+        emailRecordService.sendEmail(title, content, company.getEmail(), company.getTid());
       }
       return company;
     }