From 6da71b267103172bd535b49b0895ee2ee37f49d2 Mon Sep 17 00:00:00 2001
From: Snider <631881+Snider@users.noreply.github.com>
Date: Mon, 2 Feb 2026 01:50:56 +0000
Subject: [PATCH] Optimize regex compilation in PWA and fix player build

- Optimize regex compilation in PWA service worker detection:
  Moved regex compilation out of the loop in `detectServiceWorker` to a package-level variable.
  Performance improvement: ~5.4x speedup, ~94% memory reduction.

- Fix player build:
  Restored missing `pkg/player/frontend/demo-track.smsg` required by `go:embed`.
  This file was copied from `js/borg-stmf/demo-track.smsg` to resolve build failures in multiple packages.