refactor: 手机短信验证码认证代码优化和注释调整。

src/main/java/com/youlai/boot/shared/auth/controller/AuthController.java

@@ -75,7 +75,7 @@ public class AuthController {
 
     @Operation(summary = "发送登录短信验证码")
     @PostMapping("/login/sms/code")
-    public Result<?> sendLoginVerifyCode(
+    public Result<Void> sendLoginVerifyCode(
             @Parameter(description = "手机号", example = "18812345678") @RequestParam String mobile
     ) {
         authService.sendSmsLoginCode(mobile);
@@ -87,7 +87,7 @@ public class AuthController {
     @Log(value = "短信验证码登录", module = LogModuleEnum.LOGIN)
     public Result<AuthenticationToken> loginBySms(
             @Parameter(description = "手机号", example = "18812345678") @RequestParam String mobile,
-            @Parameter(description = "验证码", example = "123456") @RequestParam String code
+            @Parameter(description = "验证码", example = "1234") @RequestParam String code
     ) {
         AuthenticationToken loginResult = authService.loginBySms(mobile, code);
         return Result.success(loginResult);

src/main/java/com/youlai/boot/shared/auth/service/impl/AuthServiceImpl.java

@@ -53,7 +53,6 @@ public class AuthServiceImpl implements AuthService {
     private final CodeGenerator codeGenerator;
 
     private final SmsService smsService;
-
     private final RedisTemplate<String, Object> redisTemplate;
 
     /**
@@ -101,7 +100,7 @@ public class AuthServiceImpl implements AuthService {
     }
 
     /**
-     * 发送短信验证码
+     * 发送登录短信验证码
      *
      * @param mobile 手机号
      */
@@ -134,7 +133,7 @@ public class AuthServiceImpl implements AuthService {
      */
     @Override
     public AuthenticationToken loginBySms(String mobile, String code) {
-        // 1. 创建用户微信认证的令牌（未认证）
+        // 1. 创建用户短信验证码认证的令牌（未认证）
         SmsAuthenticationToken smsAuthenticationToken = new SmsAuthenticationToken(mobile, code);
 
         // 2. 执行认证（认证中）