🐛 fix: restore full app icon after build to fix missing DMG icon

Xcode's asset catalog compiler strips larger icon sizes (256, 512, 1024px)
from the AppIcon.icns file during build. This caused the app to appear
without an icon in the DMG window, which displays icons at 80px.

The fix copies the full source icon (with all sizes 16-1024px) over the
stripped version after the build completes.

Author: datlechin

build-release.sh

@@ -132,6 +132,21 @@ build_for_arch() {
         exit 1
     fi
 
+    # Fix app icon - Xcode strips larger sizes from icns in asset catalogs
+    # Copy the full source icon to ensure all sizes (16-1024px) are included
+    SOURCE_ICON="TablePro/Assets.xcassets/AppIcon.appiconset/AppIcon.icns"
+    DEST_ICON="$BUILD_DIR/$OUTPUT_NAME/Contents/Resources/AppIcon.icns"
+    if [ -f "$SOURCE_ICON" ]; then
+        echo "🎨 Restoring full app icon (Xcode strips large sizes from asset catalog)..."
+        if cp "$SOURCE_ICON" "$DEST_ICON"; then
+            echo "   ✅ Full icon restored ($(ls -lh "$SOURCE_ICON" | awk '{print $5}'))"
+        else
+            echo "   ⚠️  WARNING: Could not copy icon, DMG may have missing icon"
+        fi
+    else
+        echo "   ⚠️  WARNING: Source icon not found at $SOURCE_ICON"
+    fi
+
     # Verify binary exists inside the copied bundle
     BINARY_PATH="$BUILD_DIR/$OUTPUT_NAME/Contents/MacOS/TablePro"
     if [ ! -f "$BINARY_PATH" ]; then