Expand GetArtists with album details, download info, and generic MonitorState enum

internal/database/db.go

@@ -8,6 +8,14 @@ import (
 	"github.com/rs/zerolog/log"
 )
 
+type MonitorState string
+
+const (
+	Monitored   MonitorState = "monitored"
+	Unmonitored MonitorState = "unmonitored"
+	Excluded    MonitorState = "excluded"
+)
+
 type DB struct {
 	Pool *pgxpool.Pool
 }