feat(taskqueue): rename from 'default' to 'poimen-taskqueue'

Updated all references to task queue:
- cmd/worker/main.go: NewWorker second param
- cmd/starter/main.go: ExecuteWorkflow StartWorkflowOptions + output display

cmd/starter/main.go

@@ -88,7 +88,7 @@ func main() {
 	workflowID := "orch-" + strings.ReplaceAll(*repoPath, "/", "-")
 	run, err := c.ExecuteWorkflow(context.Background(), client.StartWorkflowOptions{
 		ID:        workflowID,
-		TaskQueue: "default",
+		TaskQueue: "poimen-taskqueue",
 	}, statemachine.OrchestratorWorkflow, input)
 	if err != nil {
 		log.Fatalf("failed to start workflow: %v", err)
@@ -96,7 +96,7 @@ func main() {
 
 	fmt.Printf("\n=== Workflow Started ===\n")
 	fmt.Printf("Workflow ID: %s\n", workflowID)
-	fmt.Printf("Task Queue:  default\n")
+	fmt.Printf("Task Queue:  poimen-taskqueue\n")
 	fmt.Printf("\n=== Model Configuration ===\n")
 	fmt.Printf("Planner Model:     %s\n", *plannerModel)
 	fmt.Printf("Judge Model:       %s\n", *judgeModel)