refactor: move examples

examples/tasks/scheduler.go

@@ -1,20 +0,0 @@
-package tasks
-
-import (
-	"context"
-	"fmt"
-
-	"github.com/oarkflow/mq"
-)
-
-func SchedulerHandler(ctx context.Context, task *mq.Task) mq.Result {
-	fmt.Printf("Processing task: %s\n", task.ID)
-	return mq.Result{Error: nil}
-}
-
-func SchedulerCallback(ctx context.Context, result mq.Result) error {
-	if result.Error != nil {
-		fmt.Println("Task failed!", result.Error.Error())
-	}
-	return nil
-}