Refactor build-toolchain.sh to improve toolchain archiving process

- Created a dedicated directory for the target toolchain within the temporary working directory.
- Copied the environment script to the working directory for inclusion in the archive.
- Updated the tar command to include the target directory and environment script in the final archive, enhancing organization and clarity.

build-toolchain.sh

@@ -217,10 +217,14 @@ cd "${TOP}"
 WDIR=$(mktemp -d)
 trap 'rm -rf "$WDIR"' EXIT
 
-cp -a "${INSTALL_DIR}"/* "$WDIR"/
-find "$WDIR" -type f -executable -exec strip -p {} \; 2>/dev/null || true
+ARCHIVE_TOOLCHAIN_DIR="${WDIR}/${TARGET}"
+mkdir -p "${ARCHIVE_TOOLCHAIN_DIR}"
+cp -a "${INSTALL_DIR}"/* "${ARCHIVE_TOOLCHAIN_DIR}/"
+cp -a "${TOP}/env.sh" "${WDIR}/env.sh"
 
-tar -C "$WDIR" --owner=0 --group=0 -cJf "toolset-jlv-${SUBARCH}-gcc${GCC_VER}-uclibc${UCLIBC_VER}.tar.xz" .
+find "${ARCHIVE_TOOLCHAIN_DIR}" -type f -executable -exec strip -p {} \; 2>/dev/null || true
+
+tar -C "$WDIR" --owner=0 --group=0 -cJf "toolset-jlv-${SUBARCH}-gcc${GCC_VER}-uclibc${UCLIBC_VER}.tar.xz" "${TARGET}" "env.sh"
 echo "Готово: toolset-jlv-${SUBARCH}-gcc${GCC_VER}-uclibc${UCLIBC_VER}.tar.xz"
 
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