system-trace

fix(grayscale): preserve and restore user gtk-theme on Linux (#37)

0.4.2 CRITICAL: app failed to launch after restart (keyring had no persistent backend)

0.4.1: restore activity tracking + robustness fixes from deep code review

Fix macOS CI: use c-string literals (clippy manual_c_str_literals)

Release 0.4.0: encryption at rest, media/lock detection, real icons, per-app goals, strict-limit lockout, PDF export, notification-click fix, browser extension