Added better archive functionalty (backend side atm)

Code refactoring

server/archiver/archiver.go

@@ -0,0 +1,42 @@
+package archiver
+
+import (
+	"context"
+	"database/sql"
+	"log/slog"
+
+	evbus "github.com/asaskevich/EventBus"
+	"github.com/marcopeocchi/yt-dlp-web-ui/v3/server/archive"
+	"github.com/marcopeocchi/yt-dlp-web-ui/v3/server/config"
+)
+
+const QueueName = "process:archive"
+
+var (
+	eventBus       = evbus.New()
+	archiveService archive.Service
+)
+
+type Message = archive.Entity
+
+func Register(db *sql.DB) {
+	_, s := archive.Container(db)
+	archiveService = s
+}
+
+func init() {
+	eventBus.Subscribe(QueueName, func(m *Message) {
+		slog.Info(
+			"archiving completed download",
+			slog.String("title", m.Title),
+			slog.String("source", m.Source),
+		)
+		archiveService.Archive(context.Background(), m)
+	})
+}
+
+func Publish(m *Message) {
+	if config.Instance().AutoArchive {
+		eventBus.Publish(QueueName, m)
+	}
+}