feat: schedule rework

internal/music/manager.go

@@ -3,6 +3,7 @@ package music
 import (
 	"context"
 	"fmt"
+	"log"
 	"net/url"
 	"sync"
 	"time"
@@ -67,18 +68,26 @@ func Init(session *discordgo.Session, appID, lavalinkHost, lavalinkPass string)
 		password = "youshallnotpass"
 	}
 
-	_, err = m.client.AddNode(context.Background(), disgolink.NodeConfig{
-		Name:     "main",
-		Address:  u.Host,
-		Password: password,
-		Secure:   secure,
-	})
-	if err != nil {
-		return fmt.Errorf("add lavalink node: %w", err)
-	}
+	// Connecting to the Lavalink node is a blocking network call (and, on
+	// failure, disgolink retries indefinitely with backoff) — do it in the
+	// background so bot startup isn't held hostage by it. Music commands
+	// simply fail with "not initialized" via the manager==nil checks until
+	// this completes.
+	go func() {
+		_, err := m.client.AddNode(context.Background(), disgolink.NodeConfig{
+			Name:     "main",
+			Address:  u.Host,
+			Password: password,
+			Secure:   secure,
+		})
+		if err != nil {
+			log.Printf("music: failed to connect to lavalink node: %v", err)
+			return
+		}
+		manager = m
+		go idleDisconnectLoop()
+	}()
 
-	manager = m
-	go idleDisconnectLoop()
 	return nil
 }