conform service design/usage patterns

model/app/appstate.go

@@ -6,8 +6,14 @@ import (
 	"github.com/jmoiron/sqlx"
 
 	"arimelody-web/model/twitch"
+
+	logService "arimelody-web/service/log"
+	inviteService "arimelody-web/service/invite"
 	accountService "arimelody-web/service/account"
-	"arimelody-web/service/log"
+	sessionService "arimelody-web/service/session"
+	artistService "arimelody-web/service/artist"
+	releaseService "arimelody-web/service/release"
+	trackService "arimelody-web/service/track"
 )
 
 type (
@@ -45,10 +51,15 @@ type (
     AppState struct {
         DB *sqlx.DB
         Config Config
-        Log *log.LogService
         Twitch *twitch.State
         PublicFS embed.FS
 
+        LogService *logService.LogService
+        InviteService *inviteService.InviteService
         AccountService *accountService.AccountService
+        SesisonService *sessionService.SessionService
+        ArtistService *artistService.ArtistService
+        ReleaseService *releaseService.ReleaseService
+        TrackService *trackService.TrackService
     }
 )