fix packaging ownership for Unraid

.gitignore

@@ -0,0 +1,3 @@
+.DS_Store
+._*
+.plugin-build/

build-plugin.sh

@@ -1,6 +1,9 @@
 #!/bin/sh
 set -eu
 
+# Keine macOS-Metadaten oder lokale UID 501 in das Unraid-Paket übernehmen.
+export COPYFILE_DISABLE=1
+
 PLUGIN="u-navigator"
 VERSION="2026.07.14.r017"
 PKG_DIR="packages"
@@ -15,7 +18,15 @@ cp server/public/app.js "$WORK_DIR/usr/local/emhttp/plugins/${PLUGIN}/assets/app
 cp server/public/styles.css "$WORK_DIR/usr/local/emhttp/plugins/${PLUGIN}/assets/styles.css"
 perl -0pi -e "s/__VERSION__/${VERSION}/g" "$WORK_DIR/usr/local/emhttp/plugins/${PLUGIN}/U-Navigator.page"
 
-tar -czf "$PKG_DIR/$PKG_NAME" -C "$WORK_DIR" usr
+find "$WORK_DIR" -name '._*' -delete
+if tar --version 2>/dev/null | grep -q 'GNU tar'; then
+    TAR_OWNER_FLAGS="--owner=0 --group=0 --numeric-owner"
+else
+    TAR_OWNER_FLAGS="--uid 0 --gid 0 --uname root --gname root"
+fi
+# Die Argumente sind feste, intern definierte tar-Flags.
+# shellcheck disable=SC2086
+tar --no-xattrs $TAR_OWNER_FLAGS -czf "$PKG_DIR/$PKG_NAME" -C "$WORK_DIR" usr
 rm -rf "$WORK_DIR"
 
 MD5="$(md5 -q "$PKG_DIR/$PKG_NAME" 2>/dev/null || md5sum "$PKG_DIR/$PKG_NAME" | awk '{print $1}')"

u-navigator.plg

@@ -24,7 +24,7 @@
 
 <FILE Name="/boot/config/plugins/&name;/&package;">
 <URL>https://git.casaderoll.de/michael/Unraid-Navigator/raw/branch/main/packages/&package;</URL>
-<MD5>3fa2ea5659712c219ce073b7a16410c5</MD5>
+<MD5>571b9c735dfab01e7d62736bf517dc45</MD5>
 </FILE>
 
 <FILE Run="/bin/bash">