feat: add user profile API endpoint

backend/src/app/api/user_api.go

@@ -0,0 +1,46 @@
+package api
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/mumu/cryptoSwap/src/app/service"
+	"github.com/mumu/cryptoSwap/src/core/log"
+	"github.com/mumu/cryptoSwap/src/core/result"
+	"go.uber.org/zap"
+)
+
+type UserApi struct {
+	svc *service.UserService
+}
+
+func NewUserApi() *UserApi {
+	return &UserApi{
+		svc: service.NewUserService(),
+	}
+}
+
+// GetProfile godoc
+// @Summary      获取用户资料
+// @Description  根据钱包地址返回用户的积分、质押总量和活跃质押数量
+// @Tags         user
+// @Accept       json
+// @Produce      json
+// @Param        Authorization  header  string  false  "Bearer token"
+// @Param        walletAddress  query   string  false  "用户地址"
+// @Success      200  {object}  result.Response{data=service.UserProfile}
+// @Router       /api/v1/user/profile [get]
+func (u *UserApi) GetProfile(c *gin.Context) {
+	addr := extractWalletAddress(c)
+	if addr == "" {
+		result.Error(c, result.InvalidParameter)
+		return
+	}
+
+	profile, err := u.svc.GetProfile(addr)
+	if err != nil {
+		log.Logger.Error("获取用户资料失败", zap.String("address", addr), zap.Error(err))
+		result.Error(c, result.DBQueryFailed)
+		return
+	}
+
+	result.OK(c, profile)
+}

backend/src/app/service/user_service.go

@@ -0,0 +1,75 @@
+package service
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/mumu/cryptoSwap/src/app/model"
+	"github.com/mumu/cryptoSwap/src/core/ctx"
+	"github.com/mumu/cryptoSwap/src/core/log"
+	"go.uber.org/zap"
+)
+
+// UserProfile 用户资料
+type UserProfile struct {
+	Address      string  `json:"address"`
+	TotalStaked  float64 `json:"totalStaked"`
+	Points       float64 `json:"points"`
+	ActiveStakes int64   `json:"activeStakes"`
+}
+
+type UserService struct{}
+
+func NewUserService() *UserService {
+	return &UserService{}
+}
+
+// GetProfile 获取用户资料
+func (s *UserService) GetProfile(address string) (*UserProfile, error) {
+	addr := strings.ToLower(address)
+
+	// 查询用户记录（可能跨多条链，累计积分）
+	var users []model.Users
+	if err := ctx.Ctx.DB.Where("address = ?", addr).Find(&users).Error; err != nil {
+		return nil, fmt.Errorf("查询用户信息失败: %v", err)
+	}
+
+	// 汇总各链数据
+	var totalStaked float64
+	var totalPoints float64
+	for _, u := range users {
+		totalStaked += float64(u.TotalAmount) / 1e18
+		jf, exact := u.Jf.Float64()
+		if !exact {
+			log.Logger.Warn("积分精度丢失", zap.String("address", addr), zap.String("jf", u.Jf.String()))
+		}
+		totalPoints += jf
+	}
+
+	// 统计活跃质押数量：质押数减去已提取数
+	var stakedCount int64
+	if err := ctx.Ctx.DB.Model(&model.UserOperationRecord{}).
+		Where("address = ? AND event_type = ?", addr, "Staked").
+		Count(&stakedCount).Error; err != nil {
+		return nil, fmt.Errorf("统计质押记录失败: %v", err)
+	}
+
+	var withdrawnCount int64
+	if err := ctx.Ctx.DB.Model(&model.UserOperationRecord{}).
+		Where("address = ? AND event_type = ?", addr, "withdraw").
+		Count(&withdrawnCount).Error; err != nil {
+		return nil, fmt.Errorf("统计提取记录失败: %v", err)
+	}
+
+	activeStakes := stakedCount - withdrawnCount
+	if activeStakes < 0 {
+		activeStakes = 0
+	}
+
+	return &UserProfile{
+		Address:      address,
+		TotalStaked:  totalStaked,
+		Points:       totalPoints,
+		ActiveStakes: activeStakes,
+	}, nil
+}

backend/src/core/gin/router/router.go

@@ -98,6 +98,10 @@ func ApiBind(r *gin.Engine, ctx *ctx.Context) {
 	// 管理员更新默克尔根（需要运维调用，后续可加鉴权）
 	v.POST("/airdrop/admin/updateMerkleRoot", airDropApi.AdminUpdateMerkleRoot)
 
+	// 用户资料接口
+	userApi := api.NewUserApi()
+	v.GET("/user/profile", userApi.GetProfile)
+
 	// 质押相关接口（需要验证）
 	stakeApi := api.NewStakeApi()
 	// 质押代币