添加了后台管理接口，包括用户、角色、材质管理，管理员可进行删除、查找、设定状态操作，详情在README

internal/types/common.go

@@ -206,3 +206,84 @@ type SystemConfigResponse struct {
 	MaxTexturesPerUser  int    `json:"max_textures_per_user" example:"100"`
 	MaxProfilesPerUser  int    `json:"max_profiles_per_user" example:"5"`
 }
+
+// AdminUserSearchRequest 管理员用户搜索请求
+// @Description 管理员搜索用户请求参数
+type AdminUserSearchRequest struct {
+	PaginationRequest
+	Keyword  string `json:"keyword" form:"keyword" example:"testuser"`
+	Role     string `json:"role" form:"role" binding:"omitempty,oneof=user admin"`
+	Status   *int16 `json:"status" form:"status" binding:"omitempty,oneof=1 0 -1"`
+	SortBy   string `json:"sort_by" form:"sort_by" binding:"omitempty,oneof=id username email points created_at"`
+	SortDesc bool   `json:"sort_desc" form:"sort_desc"`
+}
+
+// AdminUserCreateRequest 管理员创建用户请求
+// @Description 管理员创建用户请求参数
+type AdminUserCreateRequest struct {
+	Username string `json:"username" binding:"required,min=3,max=50" example:"newuser"`
+	Email    string `json:"email" binding:"required,email" example:"user@example.com"`
+	Password string `json:"password" binding:"required,min=6,max=128" example:"password123"`
+	Role     string `json:"role" binding:"required,oneof=user admin" example:"user"`
+	Points   int    `json:"points" binding:"omitempty,min=0" example:"0"`
+}
+
+// AdminUserUpdateRequest 管理员更新用户请求
+// @Description 管理员更新用户请求参数
+type AdminUserUpdateRequest struct {
+	Username *string `json:"username" binding:"omitempty,min=3,max=50" example:"newusername"`
+	Email    *string `json:"email" binding:"omitempty,email" example:"newemail@example.com"`
+	Password *string `json:"password" binding:"omitempty,min=6,max=128" example:"newpassword"`
+	Role     *string `json:"role" binding:"omitempty,oneof=user admin" example:"admin"`
+	Points   *int    `json:"points" binding:"omitempty,min=0" example:"100"`
+	Status   *int16  `json:"status" binding:"omitempty,oneof=1 0 -1"`
+}
+
+// AdminTextureSearchRequest 管理员材质搜索请求
+// @Description 管理员搜索材质请求参数
+type AdminTextureSearchRequest struct {
+	PaginationRequest
+	Keyword    string      `json:"keyword" form:"keyword" example:"skin"`
+	Type       TextureType `json:"type" form:"type" binding:"omitempty,oneof=SKIN CAPE"`
+	Status     *int16      `json:"status" form:"status" binding:"omitempty,oneof=1 0 -1"`
+	UploaderID *int64      `json:"uploader_id" form:"uploader_id" example:"1"`
+	SortBy     string      `json:"sort_by" form:"sort_by" binding:"omitempty,oneof=id name download_count favorite_count created_at"`
+	SortDesc   bool        `json:"sort_desc" form:"sort_desc"`
+}
+
+// AdminTextureUpdateRequest 管理员更新材质请求
+// @Description 管理员更新材质请求参数
+type AdminTextureUpdateRequest struct {
+	Name        *string `json:"name" binding:"omitempty,min=1,max=100" example:"New Skin Name"`
+	Description *string `json:"description" binding:"omitempty,max=500" example:"New description"`
+	IsPublic    *bool   `json:"is_public" example:"true"`
+	Status      *int16  `json:"status" binding:"omitempty,oneof=1 0 -1"`
+}
+
+// AdminRoleListResponse 角色列表响应
+// @Description 角色列表响应数据
+type AdminRoleListResponse struct {
+	Roles []RoleInfo `json:"roles"`
+}
+
+// RoleInfo 角色信息
+// @Description 角色详细信息
+type RoleInfo struct {
+	Name        string `json:"name" example:"admin"`
+	DisplayName string `json:"display_name" example:"管理员"`
+	Description string `json:"description" example:"拥有所有管理权限"`
+}
+
+// AdminStatsResponse 管理员统计信息响应
+// @Description 管理员统计信息
+type AdminStatsResponse struct {
+	TotalUsers      int64 `json:"total_users" example:"100"`
+	ActiveUsers     int64 `json:"active_users" example:"80"`
+	BannedUsers     int64 `json:"banned_users" example:"5"`
+	AdminUsers      int64 `json:"admin_users" example:"3"`
+	TotalTextures   int64 `json:"total_textures" example:"500"`
+	PublicTextures  int64 `json:"public_textures" example:"300"`
+	PendingTextures int64 `json:"pending_textures" example:"10"`
+	TotalDownloads  int64 `json:"total_downloads" example:"1000"`
+	TotalFavorites  int64 `json:"total_favorites" example:"500"`
+}