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/app/task_creation.go

@@ -129,7 +129,11 @@ func (s *Service) CreateTask(userID string, req CreateTaskRequest) (*model.Task,
 	if capacityErr != nil {
 		return nil, capacityErr
 	}
-	task := model.Task{ID: newID(), UserID: userID, TraceID: req.TraceID, RequestID: req.RequestID, ProjectID: req.ProjectID, Type: taskType, Status: model.TaskStatusQueued, Stage: "等待队列调度", Progress: 5, Prompt: prompt, Operation: req.Operation, Provider: req.Provider, Model: req.Model}
+	workbenchKind := req.workbenchKind
+	if workbenchKind == "" {
+		workbenchKind = workbenchKindFromTaskInput(normalizedInput, taskType)
+	}
+	task := model.Task{ID: newID(), UserID: userID, TraceID: req.TraceID, RequestID: req.RequestID, ProjectID: req.ProjectID, Type: taskType, WorkbenchKind: workbenchKind, Status: model.TaskStatusQueued, Stage: "等待队列调度", Progress: 5, Prompt: prompt, Operation: req.Operation, Provider: req.Provider, Model: req.Model}
 	if req.admission != nil {
 		task.ID = req.admission.ID
 		task.AgentRunID = req.admission.AgentRunID
@@ -328,6 +332,28 @@ func normalizeTaskInput(input map[string]any) (map[string]any, error) {
 	return normalized, nil
 }
 
+func workbenchKindFromTaskInput(input map[string]any, taskType string) string {
+	metadata, ok := input["metadata"].(map[string]any)
+	if !ok || metadata["source"] != "workbench" {
+		return ""
+	}
+	kind := stringValue(metadata["workbenchKind"])
+	if stringValue(input["mode"]) != kind {
+		return ""
+	}
+	switch kind {
+	case model.WorkbenchKindImage:
+		if taskType == "canvas_image" {
+			return kind
+		}
+	case model.WorkbenchKindVideo:
+		if taskType == "canvas_video" || strings.HasPrefix(taskType, "video_") {
+			return kind
+		}
+	}
+	return ""
+}
+
 // createTextReplayTask 创建前端自管的文本持久化任务：状态为 text_replay，
 // 不排队执行、不计 active 队列、不产生计费，仅作为正文增量（text-deltas）的存储容器。
 func (s *Service) createTextReplayTask(userID string, req CreateTaskRequest, normalizedInput map[string]any) (*model.Task, error) {