fix(mealie): backup and restore start.sh alongside mealie.env

Instead of recreating start.sh from a heredoc after CLEAN_INSTALL wipes
/opt/mealie/*, simply back it up before the wipe and restore it together
with mealie.env. Simpler and avoids any drift between the hardcoded
heredoc and what was actually installed.

ct/mealie.sh

@@ -38,19 +38,14 @@ function update_script() {
 
     msg_info "Backing up Configuration"
     cp -f /opt/mealie/mealie.env /opt/mealie.env
+    cp -f /opt/mealie/start.sh /opt/mealie.start.sh
     msg_ok "Backup completed"
 
     CLEAN_INSTALL=1 fetch_and_deploy_gh_release "mealie" "mealie-recipes/mealie" "tarball"
 
     msg_info "Restoring Configuration"
     mv -f /opt/mealie.env /opt/mealie/mealie.env
-    cat <<'STARTEOF' >/opt/mealie/start.sh
-#!/bin/bash
-set -a
-source /opt/mealie/mealie.env
-set +a
-exec uv run mealie
-STARTEOF
+    mv -f /opt/mealie.start.sh /opt/mealie/start.sh
     chmod +x /opt/mealie/start.sh
     msg_ok "Configuration restored"