Replace wrestool with native Rust PE icon extraction (pelite)

- Add icons.rs to nak crate: parses PE resource sections, extracts
  RT_GROUP_ICON/RT_ICON and builds ICO files in memory
- Expose nak_extract_exe_icon() FFI for C++ consumption
- Update iconForExecutable() to use Rust FFI instead of shelling out
  to wrestool; reads all ICO entries for correct color depth
- Fix BasicGamePlugin::gameIcon() to call iconForExecutable() (was
  returning empty QIcon, causing placeholder icons for BG3/Cyberpunk)
- Move app icon setup: setDesktopFileName + setWindowIcon to
  MOApplication constructor (fixes Wayland taskbar/decoration icon)
- Move data/com.fluorine.* to data/icons/, install to XDG paths at
  launch for Wayland compositor icon resolution
- Remove icoutils dependency from Docker image and build output

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 0 insertions, 22 deletions

diff --git a/data/com.fluorine.manager.desktop b/data/com.fluorine.manager.desktop
deleted file mode 100644
index ff62c76..0000000
--- a/data/com.fluorine.manager.desktop
+++ /dev/null
@@ -1,22 +0,0 @@
-[Desktop Entry]
-Type=Application
-Name=Fluorine Manager
-GenericName=Mod Manager
-Comment=Mod Organizer 2 for Linux - manage your game mods
-Exec=fluorine-manager
-Icon=com.fluorine.manager
-Terminal=false
-Categories=Game;Utility;
-Keywords=mod;organizer;modding;skyrim;fallout;
-MimeType=x-scheme-handler/nxm;
-Actions=create-portable;list-instances;
-
-[Desktop Action create-portable]
-Name=Create Portable Instance
-Exec=fluorine-manager create-portable
-Icon=com.fluorine.manager
-
-[Desktop Action list-instances]
-Name=List Instances
-Exec=fluorine-manager list-instances
-Icon=com.fluorine.manager