fix(deploy): reliably transfer exact build image and simplify production deploy scripts

scripts/deploy-prod.sh

@@ -12,8 +12,13 @@ if [ ! -f "${DEPLOY_PATH}/docker-compose.prod.yml" ]; then
   exit 1
 fi
 
+if [ ! -f "${DEPLOY_PATH}/.env" ]; then
+  echo "Missing .env in ${DEPLOY_PATH}" >&2
+  exit 1
+fi
+
 cd "${DEPLOY_PATH}"
 
 APP_IMAGE="${APP_IMAGE}" docker compose -f docker-compose.prod.yml up -d --no-build --force-recreate
 
-docker compose -f docker-compose.prod.yml ps
+APP_IMAGE="${APP_IMAGE}" docker compose -f docker-compose.prod.yml ps