feat(server): workflow log-writer registry, retention setting, sweeper

server/cmd/main.go

@@ -31,6 +31,8 @@ func main() {
 		log.Printf("warning: failed to ensure workflow indexes: %v", err)
 	}
 
+	services.StartLogSweeper()
+
 	redisAddr := getEnv("REDIS_ADDR", "localhost:6379")
 	if err := auth.InitRedis(redisAddr); err != nil {
 		log.Fatalf("failed to connect to Redis: %v", err)