feat: 添加种子数据初始化功能，重构多个处理程序以简化错误响应和用户验证

internal/handler/yggdrasil_handler.go

@@ -405,12 +405,8 @@ func SignOut(c *gin.Context) {
 		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}
-	password, err := service.GetPasswordByUserId(db, user.ID)
-	if err != nil {
-		loggerInstance.Error("[ERROR] 邮箱查找失败", zap.Any("UserId:", user.ID), zap.Error(err))
-	}
 	// 验证密码
-	if password != request.Password {
+	if err := service.VerifyPassword(db, request.Password, user.ID); err != nil {
 		loggerInstance.Warn("[WARN] 登出失败: 密码错误", zap.Any("用户ID:", user.ID))
 		c.JSON(http.StatusBadRequest, gin.H{"error": ErrWrongPassword})
 		return