refactor(auth): modularize auth plugin with physical subpackages and decoupled services

backend/plugins/domain/auth/controller/user_info.go

@@ -0,0 +1,45 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+// Package controller provides HTTP handlers and middlewares for the auth plugin.
+package controller
+
+import (
+	"Wavelet/core/contracts"
+	"Wavelet/pkg/ginutil"
+	"Wavelet/pkg/response"
+	"Wavelet/plugins/domain/auth/model/dto"
+	"net/http"
+
+	"github.com/gin-contrib/sessions"
+	"github.com/gin-gonic/gin"
+)
+
+// UserInfoHandler handles current user info queries.
+type UserInfoHandler struct{}
+
+// NewUserInfoHandler creates a new UserInfoHandler.
+func NewUserInfoHandler() *UserInfoHandler {
+	return &UserInfoHandler{}
+}
+
+// UserInfo 获取当前登录用户信息
+// @Summary 获取当前登录用户信息
+// @Description 返回当前登录用户的基本信息，需要登录。
+// @Tags oauth
+// @Produce json
+// @Security SessionCookie
+// @Success 200 {object} response.Any{data=dto.BasicUserInfo} "用户信息"
+// @Failure 401 {object} response.Any "未登录"
+// @Router /api/v1/oauth/user-info [get]
+// @Router /api/v1/user-info [get]
+func (h *UserInfoHandler) UserInfo(c *gin.Context) {
+	user, _ := ginutil.GetFromContext[*contracts.UserDTO](c, contracts.AuthUserObjKey)
+	session := sessions.Default(c)
+	needChange := session.Get("need_change_password") == true || (user != nil && user.NeedChangePassword)
+
+	c.JSON(
+		http.StatusOK,
+		response.OK(dto.BuildBasicUserInfo(user, needChange)),
+	)
+}