fix: create output directory before tar in install-esde.sh

Add mkdir -p "$outdir" before the tar command to ensure the
output directory exists before attempting to create the tarball.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/install-esde.sh

@@ -40,5 +40,6 @@ fi
 
 chmod +x "$esde_dir/usr/local/bin/"*
 
+mkdir -p "$outdir"
 tar cf "$outdir/esde.tar" -C "$esde_dir" .
 echo "ES-DE tarball created at $outdir/esde.tar"