Remove cron job setup from deploy script

Backup scheduling will be handled via the Unraid User Scripts plugin
instead, which persists across reboots.

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

deploy.sh

@@ -75,18 +75,6 @@ ssh "${UNRAID_SSH}" "
     fi
 " || error "Failed to check/create .env on Unraid."
 
-# ── Ensure daily backup cron job exists ───────────────────────────
-info "Checking for backup cron job on Unraid..."
-CRON_CMD="0 3 * * * ${UNRAID_DEPLOY_DIR}/backup.sh >> ${UNRAID_DEPLOY_DIR}/backups/cron.log 2>&1"
-ssh "${UNRAID_SSH}" "
-    if ! crontab -l 2>/dev/null | grep -qF '${UNRAID_DEPLOY_DIR}/backup.sh'; then
-        (crontab -l 2>/dev/null; echo '${CRON_CMD}') | crontab -
-        echo 'Cron job installed (daily at 03:00)'
-    else
-        echo 'Cron job already exists, skipping'
-    fi
-" || error "Failed to set up backup cron job on Unraid."
-
 # ── Pull images and (re)start on Unraid ──────────────────────────
 info "Pulling images and starting containers on Unraid..."
 ssh "${UNRAID_SSH}" "cd '${UNRAID_DEPLOY_DIR}' && docker compose pull && docker compose up -d" \