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, 3 insertions, 2 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 700e55f..21e13f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -154,12 +154,13 @@ add_subdirectory(libs/libbsarch)  # shared + static, needs dds-header
 add_subdirectory(libs/7zip)        # builds 7z.so from source (Linux only)
 add_subdirectory(libs/archive)    # shared lib, needs dl
 add_subdirectory(libs/lootcli)    # executable, needs Qt6 + boost + libloot + curl
-add_subdirectory(libs/uibase)     # shared lib, needs Qt6 + spdlog
 
 if(BUILD_NAK_FFI)
-    add_subdirectory(libs/nak_ffi)
+    add_subdirectory(libs/nak_ffi)   # Rust FFI lib, before uibase (icon extraction)
 endif()
 
+add_subdirectory(libs/uibase)     # shared lib, needs Qt6 + spdlog + nak_ffi (Linux)
+
 if(BUILD_BSA_FFI)
     add_subdirectory(libs/bsa_ffi)
 endif()