Commands for everything a dashboard can do

- /music skip, pause, resume, stop, repeat, remove, move (DJ role)
- /config view, clear, toggletwitch, streamers, beta-features (server owner)
- /slvl status, remove-reward; /moderation bans, timeouts; /security history
- /beta is now the bot owner's DM-only command: set, off, servers, remove-server, status
- betasettings service and repo methods, with integration tests

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

internal/security/security.go

@@ -61,6 +61,7 @@ type Store interface {
 	ListLockdowns(ctx context.Context, guildID int64, serverWideOnly bool) ([]securityrepo.Lockdown, error)
 	DeleteLockdown(ctx context.Context, guildID, channelID int64) error
 	AddEvent(ctx context.Context, e securityrepo.Event) error
+	ListEvents(ctx context.Context, guildID int64, limit int) ([]securityrepo.Event, error)
 	ListUnprocessedCommands(ctx context.Context) ([]securityrepo.Command, error)
 	MarkCommandProcessed(ctx context.Context, id int64) error
 	SaveRaid(ctx context.Context, x securityrepo.Raid) error