backend: add bookmark CRUD with public list endpoint

New bookmarks feature: domain model, repository, service and handler
supporting list/create/update/delete. Public endpoint exposes the
admin user's bookmarks for the homepage navigation grid; authenticated
endpoints scope by user. Dev Dockerfile drops air for plain `go run`
and uses goproxy.cn to avoid build failures on the deploy host.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/internal/db/db.go

@@ -18,7 +18,7 @@ func Init(cfg *config.Config) *gorm.DB {
 		log.Fatalf("failed to connect database: %v", err)
 	}
 
-	if err := DB.AutoMigrate(&domain.User{}); err != nil {
+	if err := DB.AutoMigrate(&domain.User{}, &domain.Bookmark{}); err != nil {
 		log.Fatalf("failed to migrate database: %v", err)
 	}
 

backend/internal/domain/bookmark.go

@@ -0,0 +1,16 @@
+package domain
+
+import "time"
+
+type Bookmark struct {
+	ID          uint      `gorm:"primarykey" json:"id"`
+	UserID      uint      `gorm:"not null;index" json:"userId"`
+	Title       string    `gorm:"not null" json:"title"`
+	URL         string    `gorm:"not null" json:"url"`
+	Description string    `json:"description"`
+	Icon        string    `json:"icon"`
+	Category    string    `gorm:"default:'默认'" json:"category"`
+	SortOrder   int       `gorm:"default:0" json:"sortOrder"`
+	CreatedAt   time.Time `json:"createdAt"`
+	UpdatedAt   time.Time `json:"updatedAt"`
+}

backend/internal/handler/bookmark.go

@@ -0,0 +1,160 @@
+package handler
+
+import (
+	"net/http"
+	"strconv"
+
+	"evanpage-backend/internal/domain"
+	"evanpage-backend/internal/service"
+	"github.com/gin-gonic/gin"
+)
+
+type BookmarkHandler struct {
+	bookmarkService *service.BookmarkService
+	userService     *service.UserService
+}
+
+func NewBookmarkHandler(bookmarkService *service.BookmarkService, userService *service.UserService) *BookmarkHandler {
+	return &BookmarkHandler{bookmarkService: bookmarkService, userService: userService}
+}
+
+func getUserID(c *gin.Context) uint {
+	uid, _ := c.Get("userID")
+	id, _ := strconv.ParseUint(uid.(string), 10, 64)
+	return uint(id)
+}
+
+func (h *BookmarkHandler) Create(c *gin.Context) {
+	var req struct {
+		Title       string `json:"title" binding:"required"`
+		URL         string `json:"url" binding:"required"`
+		Description string `json:"description"`
+		Icon        string `json:"icon"`
+		Category    string `json:"category"`
+		SortOrder   int    `json:"sortOrder"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	userID := getUserID(c)
+	bm, err := h.bookmarkService.Create(userID, req.Title, req.URL, req.Description, req.Icon, req.Category, req.SortOrder)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusCreated, bm)
+}
+
+func (h *BookmarkHandler) List(c *gin.Context) {
+	userID := getUserID(c)
+	category := c.Query("category")
+
+	var bms []domain.Bookmark
+	var err error
+
+	if category != "" {
+		bms, err = h.bookmarkService.ListByUserAndCategory(userID, category)
+	} else {
+		bms, err = h.bookmarkService.ListByUser(userID)
+	}
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	categories, _ := h.bookmarkService.ListCategoriesByUser(userID)
+
+	c.JSON(http.StatusOK, gin.H{
+		"bookmarks":  bms,
+		"categories": categories,
+	})
+}
+
+func (h *BookmarkHandler) PublicList(c *gin.Context) {
+	admin, err := h.userService.FindByRole("admin")
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"bookmarks":  []domain.Bookmark{},
+			"categories": []string{},
+		})
+		return
+	}
+
+	category := c.Query("category")
+	var bms []domain.Bookmark
+	if category != "" {
+		bms, err = h.bookmarkService.ListByUserAndCategory(admin.ID, category)
+	} else {
+		bms, err = h.bookmarkService.ListByUser(admin.ID)
+	}
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	categories, _ := h.bookmarkService.ListCategoriesByUser(admin.ID)
+
+	c.JSON(http.StatusOK, gin.H{
+		"bookmarks":  bms,
+		"categories": categories,
+	})
+}
+
+func (h *BookmarkHandler) Update(c *gin.Context) {
+	idStr := c.Param("id")
+	id, err := strconv.ParseUint(idStr, 10, 64)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid id"})
+		return
+	}
+
+	var req struct {
+		Title       string `json:"title"`
+		URL         string `json:"url"`
+		Description string `json:"description"`
+		Icon        string `json:"icon"`
+		Category    string `json:"category"`
+		SortOrder   int    `json:"sortOrder"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	userID := getUserID(c)
+	bm, err := h.bookmarkService.Update(userID, uint(id), req.Title, req.URL, req.Description, req.Icon, req.Category, req.SortOrder)
+	if err != nil {
+		if err.Error() == "forbidden" {
+			c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, bm)
+}
+
+func (h *BookmarkHandler) Delete(c *gin.Context) {
+	idStr := c.Param("id")
+	id, err := strconv.ParseUint(idStr, 10, 64)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid id"})
+		return
+	}
+
+	userID := getUserID(c)
+	if err := h.bookmarkService.Delete(userID, uint(id)); err != nil {
+		if err.Error() == "forbidden" {
+			c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusNoContent, nil)
+}

backend/internal/repository/bookmark.go

@@ -0,0 +1,51 @@
+package repository
+
+import (
+	"evanpage-backend/internal/domain"
+
+	"gorm.io/gorm"
+)
+
+type BookmarkRepository struct {
+	db *gorm.DB
+}
+
+func NewBookmarkRepository(db *gorm.DB) *BookmarkRepository {
+	return &BookmarkRepository{db: db}
+}
+
+func (r *BookmarkRepository) Create(bm *domain.Bookmark) error {
+	return r.db.Create(bm).Error
+}
+
+func (r *BookmarkRepository) FindByID(id uint) (*domain.Bookmark, error) {
+	var bm domain.Bookmark
+	err := r.db.First(&bm, id).Error
+	return &bm, err
+}
+
+func (r *BookmarkRepository) ListByUser(userID uint) ([]domain.Bookmark, error) {
+	var bms []domain.Bookmark
+	err := r.db.Where("user_id = ?", userID).Order("sort_order asc, created_at desc").Find(&bms).Error
+	return bms, err
+}
+
+func (r *BookmarkRepository) ListByUserAndCategory(userID uint, category string) ([]domain.Bookmark, error) {
+	var bms []domain.Bookmark
+	err := r.db.Where("user_id = ? AND category = ?", userID, category).Order("sort_order asc, created_at desc").Find(&bms).Error
+	return bms, err
+}
+
+func (r *BookmarkRepository) ListCategoriesByUser(userID uint) ([]string, error) {
+	var categories []string
+	err := r.db.Model(&domain.Bookmark{}).Where("user_id = ?", userID).Distinct().Pluck("category", &categories).Error
+	return categories, err
+}
+
+func (r *BookmarkRepository) Update(bm *domain.Bookmark) error {
+	return r.db.Save(bm).Error
+}
+
+func (r *BookmarkRepository) Delete(id uint) error {
+	return r.db.Delete(&domain.Bookmark{}, id).Error
+}

backend/internal/repository/user.go

@@ -41,6 +41,12 @@ func (r *UserRepository) FindByKeycloakID(keycloakID string) (*domain.User, erro
 	return &user, err
 }
 
+func (r *UserRepository) FindByRole(role string) (*domain.User, error) {
+	var user domain.User
+	err := r.db.Where("role = ?", role).First(&user).Error
+	return &user, err
+}
+
 func (r *UserRepository) ListAll() ([]domain.User, error) {
 	var users []domain.User
 	err := r.db.Select("id", "username", "email", "role", "keycloak_id", "created_at", "updated_at").Find(&users).Error

backend/internal/router/router.go

@@ -20,8 +20,12 @@ func Setup(cfg *config.Config) *gin.Engine {
 	userRepo := repository.NewUserRepository(db.DB)
 	userService := service.NewUserService(userRepo)
 
+	bookmarkRepo := repository.NewBookmarkRepository(db.DB)
+	bookmarkService := service.NewBookmarkService(bookmarkRepo)
+
 	authHandler := handler.NewAuthHandler(userService)
 	healthHandler := handler.NewHealthHandler(db.DB)
+	bookmarkHandler := handler.NewBookmarkHandler(bookmarkService, userService)
 
 	// Public routes
 	r.POST("/api/auth/local-login", authHandler.LocalLogin)
@@ -29,6 +33,17 @@ func Setup(cfg *config.Config) *gin.Engine {
 	r.POST("/api/auth/bind-keycloak", authHandler.BindKeycloak)
 	r.POST("/api/auth/init", authHandler.InitAdmin)
 	r.GET("/api/health", healthHandler.Check)
+	r.GET("/api/bookmarks/public", bookmarkHandler.PublicList)
+
+	// Authenticated routes
+	auth := r.Group("/api")
+	auth.Use(middleware.AuthProxy())
+	{
+		auth.GET("/bookmarks", bookmarkHandler.List)
+		auth.POST("/bookmarks", bookmarkHandler.Create)
+		auth.PUT("/bookmarks/:id", bookmarkHandler.Update)
+		auth.DELETE("/bookmarks/:id", bookmarkHandler.Delete)
+	}
 
 	return r
 }

backend/internal/service/bookmark.go

@@ -0,0 +1,87 @@
+package service
+
+import (
+	"errors"
+
+	"evanpage-backend/internal/domain"
+	"evanpage-backend/internal/repository"
+)
+
+type BookmarkService struct {
+	repo *repository.BookmarkRepository
+}
+
+func NewBookmarkService(repo *repository.BookmarkRepository) *BookmarkService {
+	return &BookmarkService{repo: repo}
+}
+
+func (s *BookmarkService) Create(userID uint, title, url, description, icon, category string, sortOrder int) (*domain.Bookmark, error) {
+	if title == "" || url == "" {
+		return nil, errors.New("title and url are required")
+	}
+	if category == "" {
+		category = "默认"
+	}
+	bm := &domain.Bookmark{
+		UserID:      userID,
+		Title:       title,
+		URL:         url,
+		Description: description,
+		Icon:        icon,
+		Category:    category,
+		SortOrder:   sortOrder,
+	}
+	if err := s.repo.Create(bm); err != nil {
+		return nil, err
+	}
+	return bm, nil
+}
+
+func (s *BookmarkService) ListByUser(userID uint) ([]domain.Bookmark, error) {
+	return s.repo.ListByUser(userID)
+}
+
+func (s *BookmarkService) ListByUserAndCategory(userID uint, category string) ([]domain.Bookmark, error) {
+	return s.repo.ListByUserAndCategory(userID, category)
+}
+
+func (s *BookmarkService) ListCategoriesByUser(userID uint) ([]string, error) {
+	return s.repo.ListCategoriesByUser(userID)
+}
+
+func (s *BookmarkService) Update(userID, bookmarkID uint, title, url, description, icon, category string, sortOrder int) (*domain.Bookmark, error) {
+	bm, err := s.repo.FindByID(bookmarkID)
+	if err != nil {
+		return nil, errors.New("bookmark not found")
+	}
+	if bm.UserID != userID {
+		return nil, errors.New("forbidden")
+	}
+	if title != "" {
+		bm.Title = title
+	}
+	if url != "" {
+		bm.URL = url
+	}
+	bm.Description = description
+	bm.Icon = icon
+	if category != "" {
+		bm.Category = category
+	}
+	bm.SortOrder = sortOrder
+	if err := s.repo.Update(bm); err != nil {
+		return nil, err
+	}
+	return bm, nil
+}
+
+func (s *BookmarkService) Delete(userID, bookmarkID uint) error {
+	bm, err := s.repo.FindByID(bookmarkID)
+	if err != nil {
+		return errors.New("bookmark not found")
+	}
+	if bm.UserID != userID {
+		return errors.New("forbidden")
+	}
+	return s.repo.Delete(bookmarkID)
+}

backend/internal/service/user.go

@@ -93,6 +93,10 @@ func (s *UserService) BindKeycloak(username, password, keycloakID, keycloakEmail
 	return user, nil
 }
 
+func (s *UserService) FindByRole(role string) (*domain.User, error) {
+	return s.repo.FindByRole(role)
+}
+
 func (s *UserService) ListUsers() ([]domain.User, error) {
 	return s.repo.ListAll()
 }