Fix deploy.sh unbound variable on line 51

\\$1 in a double-quoted string expands as literal backslash + $1 (the
script's first positional arg). With set -u and no CLI args (IP entered
via read), this fails. \$1 correctly escapes the dollar sign, producing
a literal $1 for awk on the remote host.

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

scripts/deploy.sh

@@ -48,7 +48,7 @@ echo "==> Сборка бинарника..."
 echo "    OK: $(ls -lh "${LOCAL_BIN}" | awk '{print $5, $9}')"
 
 LOCAL_SHA="$(shasum -a 256 "${LOCAL_BIN}" | awk '{print $1}')"
-REMOTE_SHA="$("${SSH_CMD[@]}" "$REMOTE" "if [ -f '${REMOTE_BIN}' ] && command -v sha256sum >/dev/null 2>&1; then sha256sum '${REMOTE_BIN}' | awk '{print \\$1}'; fi" 2>/dev/null || true)"
+REMOTE_SHA="$("${SSH_CMD[@]}" "$REMOTE" "if [ -f '${REMOTE_BIN}' ] && command -v sha256sum >/dev/null 2>&1; then sha256sum '${REMOTE_BIN}' | awk '{print \$1}'; fi" 2>/dev/null || true)"
 if [[ -n "${REMOTE_SHA}" && "${LOCAL_SHA}" == "${REMOTE_SHA}" ]]; then
     echo "==> Бинарник не изменился (${LOCAL_SHA}); копирование и перезапуск сервисов пропущены."
     exit 0