feat(*): 生图与视频工作台 - 新增独立生成流程并整合平台配置

backend/internal/repository/workbench_tasks.go

@@ -0,0 +1,23 @@
+package repository
+
+import (
+	"yingce/backend/internal/model"
+)
+
+type TaskPage struct {
+	Tasks      []model.Task `json:"tasks"`
+	NextCursor string       `json:"nextCursor,omitempty"`
+}
+
+func (r *Repository) WorkbenchTasks(userID, kind string, activeOnly bool, cursor string, limit int) (TaskPage, error) {
+	if limit < 1 || limit > 100 { limit = 30 }
+	if kind != model.WorkbenchKindImage && kind != model.WorkbenchKindVideo { return TaskPage{}, nil }
+	query := r.db.Model(&model.Task{}).Where("user_id = ? AND workbench_kind = ?", userID, kind)
+	if activeOnly { query = query.Where("status IN ?", []model.TaskStatus{model.TaskStatusQueued, model.TaskStatusRunning}) }
+	if cursor != "" { query = query.Where("id < ?", cursor) }
+	var tasks []model.Task
+	if err := query.Order("created_at desc, id desc").Limit(limit + 1).Find(&tasks).Error; err != nil { return TaskPage{}, err }
+	page := TaskPage{Tasks: tasks}
+	if len(tasks) > limit { page.Tasks = tasks[:limit]; page.NextCursor = page.Tasks[len(page.Tasks)-1].ID }
+	return page, nil
+}