Feat: overhaul to produce .dmg and .app on macOS build script

scripts/build-all.sh

@@ -229,6 +229,14 @@ bundle_plugins_native() {
     cargo xtask bundle "$PLUGIN_NAME" --release $tf
 }
 
+bundle_desktop_native() {
+    local platform="$1"
+    local tf
+    tf=$(target_flag "$platform")
+    # shellcheck disable=SC2086
+    cargo bundle --release --features desktop --bin cagire-desktop $tf
+}
+
 bundle_plugins_cross() {
     local platform="$1"
     local rd
@@ -300,6 +308,18 @@ copy_artifacts() {
         local dst="$OUT/cagire-desktop-${os}-${arch}${suffix}"
         cp "$src" "$dst"
         echo "    cagire-desktop -> $dst"
+
+        # macOS .app bundle
+        if [[ "$os" == "macos" ]]; then
+            local app_src="$rd/bundle/osx/Cagire.app"
+            if [[ -d "$app_src" ]]; then
+                local app_dst="$OUT/Cagire-${arch}.app"
+                rm -rf "$app_dst"
+                cp -R "$app_src" "$app_dst"
+                echo "    Cagire.app -> $app_dst"
+                scripts/make-dmg.sh "$app_dst" "$OUT"
+            fi
+        fi
     fi
 
     # AppImage for Linux targets
@@ -407,6 +427,10 @@ for platform in "${selected_platforms[@]}"; do
     if $build_desktop; then
         echo "  -> cagire-desktop"
         build_binary "$platform" --features desktop --bin cagire-desktop
+        if ! is_cross_target "$platform"; then
+            echo "  -> bundling cagire-desktop .app"
+            bundle_desktop_native "$platform"
+        fi
     fi
 
     if $build_plugins; then