feat: add volume save/restore on failure/unload

On the first failed unlock attempt, save the current system volume and
mute state then set volume to maximum unmuted; restore on g_module_unload.
A lock file under XDG_RUNTIME_DIR prevents double-acquisition when
multiple gtklock windows are active.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Asger Geel Weirsøe
2026-05-06 09:50:49 +02:00
parent 7913ced403
commit 74e0f544a0
7 changed files with 471 additions and 21 deletions

323
Cargo.lock generated
View File

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