v0.58.2

Changed

• Refreshed the SQLite and Go system dependencies and the pinned GitHub Actions
  used by CI, with the full cross-platform verification matrix still green.
• Dependabot updates are grouped by ecosystem and capped at three open PRs;
  npm major updates remain separate for deliberate review.
• The README pulse animation now advances every 60 ms instead of 250 ms, so a
  complete dark or light cycle takes about 5.5 seconds and reads as live motion.