feat: Created task lists that work in categories

backend/internal/application/dto/dto.go

@@ -430,6 +430,7 @@ type CategoryTreeDTO struct {
 	*CategoryDTO
 	Subcategories []*CategoryTreeDTO `json:"subcategories"`
 	Notes         []*NoteListItemDTO `json:"notes"`
+	TaskLists     []*TaskListDTO     `json:"task_lists"`
 }
 
 // NewCategoryDTO creates a DTO from a category entity
@@ -458,7 +459,7 @@ func NewCategoryDTO(category *entities.Category) *CategoryDTO {
 type CreateTaskRequest struct {
 	Title        string   `json:"title" validate:"required,min=1,max=255"`
 	Description  string   `json:"description" validate:"max=2000"`
-	CategoryID   *string  `json:"category_id,omitempty"`
+	TaskListID   string   `json:"task_list_id" validate:"required"`
 	StatusID     string   `json:"status_id" validate:"required"`
 	ParentTaskID *string  `json:"parent_task_id,omitempty"`
 	NoteLinks    []string `json:"note_links"`
@@ -468,7 +469,7 @@ type CreateTaskRequest struct {
 type UpdateTaskRequest struct {
 	Title        *string  `json:"title,omitempty"`
 	Description  *string  `json:"description,omitempty"`
-	CategoryID   *string  `json:"category_id,omitempty"`
+	TaskListID   *string  `json:"task_list_id,omitempty"`
 	StatusID     *string  `json:"status_id,omitempty"`
 	ParentTaskID *string  `json:"parent_task_id,omitempty"`
 	NoteLinks    []string `json:"note_links,omitempty"`
@@ -490,7 +491,7 @@ type TaskDTO struct {
 	SpaceID      string   `json:"space_id"`
 	Title        string   `json:"title"`
 	Description  string   `json:"description"`
-	CategoryID   *string  `json:"category_id,omitempty"`
+	TaskListID   string   `json:"task_list_id"`
 	StatusID     string   `json:"status_id"`
 	ParentTaskID *string  `json:"parent_task_id,omitempty"`
 	Depth        int      `json:"depth"`
@@ -538,14 +539,35 @@ type TaskStatusDTO struct {
 	UpdatedAt string `json:"updated_at"`
 }
 
+// CreateTaskListRequest represents task list creation input.
+type CreateTaskListRequest struct {
+	Name        string  `json:"name" validate:"required,min=1,max=120"`
+	Description string  `json:"description" validate:"max=500"`
+	CategoryID  *string `json:"category_id,omitempty"`
+}
+
+// UpdateTaskListRequest represents task list update input.
+type UpdateTaskListRequest struct {
+	Name        *string `json:"name,omitempty"`
+	Description *string `json:"description,omitempty"`
+	CategoryID  *string `json:"category_id,omitempty"`
+}
+
+// TaskListDTO represents a task list in API responses.
+type TaskListDTO struct {
+	ID          string  `json:"id"`
+	SpaceID     string  `json:"space_id"`
+	CategoryID  *string `json:"category_id,omitempty"`
+	Name        string  `json:"name"`
+	Description string  `json:"description"`
+	CreatedBy   string  `json:"created_by"`
+	UpdatedBy   string  `json:"updated_by"`
+	CreatedAt   string  `json:"created_at"`
+	UpdatedAt   string  `json:"updated_at"`
+}
+
 // NewTaskDTO creates a DTO from a task entity.
 func NewTaskDTO(task *entities.Task) *TaskDTO {
-	var categoryID *string
-	if task.CategoryID != nil {
-		id := task.CategoryID.Hex()
-		categoryID = &id
-	}
-
 	var parentTaskID *string
 	if task.ParentTaskID != nil {
 		id := task.ParentTaskID.Hex()
@@ -562,7 +584,7 @@ func NewTaskDTO(task *entities.Task) *TaskDTO {
 		SpaceID:      task.SpaceID.Hex(),
 		Title:        task.Title,
 		Description:  task.Description,
-		CategoryID:   categoryID,
+		TaskListID:   task.TaskListID.Hex(),
 		StatusID:     task.StatusID.Hex(),
 		ParentTaskID: parentTaskID,
 		Depth:        task.Depth,
@@ -574,6 +596,27 @@ func NewTaskDTO(task *entities.Task) *TaskDTO {
 	}
 }
 
+// NewTaskListDTO creates a DTO from a task list entity.
+func NewTaskListDTO(taskList *entities.TaskList) *TaskListDTO {
+	var categoryID *string
+	if taskList.CategoryID != nil {
+		id := taskList.CategoryID.Hex()
+		categoryID = &id
+	}
+
+	return &TaskListDTO{
+		ID:          taskList.ID.Hex(),
+		SpaceID:     taskList.SpaceID.Hex(),
+		CategoryID:  categoryID,
+		Name:        taskList.Name,
+		Description: taskList.Description,
+		CreatedBy:   taskList.CreatedBy.Hex(),
+		UpdatedBy:   taskList.UpdatedBy.Hex(),
+		CreatedAt:   taskList.CreatedAt.Format("2006-01-02T15:04:05Z"),
+		UpdatedAt:   taskList.UpdatedAt.Format("2006-01-02T15:04:05Z"),
+	}
+}
+
 // NewTaskStatusDTO creates a DTO from a task status entity.
 func NewTaskStatusDTO(status *entities.TaskStatus) *TaskStatusDTO {
 	return &TaskStatusDTO{