feat: custom content type icons, built-in types, user lookup

internal/infrastructure/persistence/mappers/contentTypeMapper.go

@@ -15,6 +15,7 @@ func ContentTypeToDomain(m models.ContentType) (contenttype.ContentType, error)
 		ID:        m.ID,
 		Key:       m.Key,
 		Name:      m.Name,
+		Icon:      m.Icon,
 		Fields:    fields,
 		CreatedAt: m.CreatedAt,
 		UpdatedAt: m.UpdatedAt,
@@ -30,6 +31,7 @@ func ContentTypeToModel(c contenttype.ContentType) (models.ContentType, error) {
 		ID:        c.ID,
 		Key:       c.Key,
 		Name:      c.Name,
+		Icon:      c.Icon,
 		Fields:    string(fields),
 		CreatedAt: c.CreatedAt,
 		UpdatedAt: c.UpdatedAt,

internal/infrastructure/persistence/models/contentTypeModel.go

@@ -6,6 +6,7 @@ type ContentType struct {
 	ID        uint32    `gorm:"primaryKey;autoIncrement"`
 	Key       string    `gorm:"column:type_key;size:40;not null;uniqueIndex"`
 	Name      string    `gorm:"size:100;not null"`
+	Icon      *string   `gorm:"size:40"`
 	Fields    string    `gorm:"type:text;not null"`
 	CreatedAt time.Time `gorm:"autoCreateTime"`
 	UpdatedAt time.Time `gorm:"autoUpdateTime"`

internal/infrastructure/persistence/repositories/contentTypeRepository.go

@@ -60,7 +60,7 @@ func (c *ContentTypeRepository) Update(contentType domain.ContentType) (domain.C
 	if err != nil {
 		return domain.ContentType{}, err
 	}
-	result := c.db.Model(&entity.ContentType{}).Where("id = ?", model.ID).Select("Name", "Fields", "UpdatedAt").Updates(&model)
+	result := c.db.Model(&entity.ContentType{}).Where("id = ?", model.ID).Select("Name", "Icon", "Fields", "UpdatedAt").Updates(&model)
 	if err := deleteOrNotFound(result, domain.ErrContentTypeNotFound); err != nil {
 		return domain.ContentType{}, mapKeyTakenErr(err)
 	}

internal/infrastructure/persistence/repositories/userRepository.go

@@ -62,6 +62,18 @@ func (u *UserRepository) GetAll() []domainUser.User {
 	return domainUsers
 }
 
+func (u *UserRepository) FindByIDs(ids []uint32) ([]domainUser.User, error) {
+	var users []entity.User
+	if err := u.db.Select("id", "username", "display_name").Where("id IN ?", ids).Find(&users).Error; err != nil {
+		return nil, err
+	}
+	found := make([]domainUser.User, 0, len(users))
+	for _, localUser := range users {
+		found = append(found, mappers.UserToDomain(localUser))
+	}
+	return found, nil
+}
+
 func (u *UserRepository) GetByUsername(username string) (domainUser.User, error) {
 	var localUser entity.User
 	err := u.db.Model(&entity.User{}).Where("username = ?", username).First(&localUser).Error