Add remote volume control for the living room media center (boxy) that
controls the Denon AVR through Home Assistant instead of local audio.
- Create plasma-manager-kodi role with custom KDE hotkeys for volume
up/down/mute that execute shell scripts
- Scripts retrieve HA token from KDE Wallet and send API requests to
control media_player.denon_avr_s970h_2
- Add retry logic (3 attempts) and error notifications
- Enable KDE Wallet PAM integration for automatic wallet unlock
- Configure KDE settings: Breeze Dark theme, disable screen locking,
empty session restore
- Add kconfig package for debugging tools
The original implementation had several issues that prevented it from
building:
- Used buildInputs instead of nativeBuildInputs for makeWrapper
- Referenced wrong executable name (jellyfinmediaplayer vs jellyfin-desktop)
- Used wrapProgram which doesn't work with symlinks from symlinkJoin
Fixed by using makeWrapper directly with the correct executable path
after removing the symlink.
Also enabled jellyfinScaleFactor = 1.5 on boxy for UI scaling.
