create dmg file script

build-production-mac.sh

@@ -337,8 +337,32 @@ main() {
     create_launchers
     validate_package
     create_zip
+    create_dmg
 
     log INFO "Done. Package available at $PACKAGE_DIR"
 }
 
+create_dmg() {
+    if [[ -z ${APP_BUNDLE_PATH:-} ]]; then
+        log INFO "No app bundle detected; skipping DMG creation"
+        return
+    fi
+    
+    local app_name="${APP_BUNDLE_PATH##*/}"
+    local dmg_name="TetrisGame-mac-${VERSION}.dmg"
+    local dmg_path="$OUTPUT_DIR/$dmg_name"
+    
+    if [[ ! -f "scripts/create-dmg.sh" ]]; then
+        log WARN "scripts/create-dmg.sh not found; skipping DMG creation"
+        return
+    fi
+    
+    log INFO "Creating DMG installer: $dmg_path"
+    bash scripts/create-dmg.sh "$PACKAGE_DIR/$app_name" "$dmg_path" || log WARN "DMG creation failed"
+    
+    if [[ -f "$dmg_path" ]]; then
+        log OK "DMG created: $dmg_path"
+    fi
+}
+
 main "$@"