fix build time environment variables

docker-compose.yaml

@@ -60,7 +60,7 @@ services:
       args:
         APP_PACKAGE: "@edr/passenger-portal"
         APP_PATH: apps/edr-passenger-web/portal
-        NEXT_PUBLIC_API_URL: ${PASSENGER_NEXT_PUBLIC_API_URL:-http://localhost:4000}
+        NEXT_PUBLIC_API_URL: ${NEXT_PUBLIC_API_URL:-http://localhost:4000}
       secrets:
         - npmrc
     ports:
@@ -75,7 +75,7 @@ services:
       args:
         APP_PACKAGE: "@edr/passenger-backoffice"
         APP_PATH: apps/edr-passenger-web/backoffice
-        NEXT_PUBLIC_API_URL: ${PASSENGER_NEXT_PUBLIC_API_URL:-http://localhost:4000}
+        NEXT_PUBLIC_API_URL: ${NEXT_PUBLIC_API_URL:-http://localhost:4000}
       secrets:
         - npmrc
     ports:

infrastructure/docker/Dockerfile.passenger-web

@@ -14,7 +14,7 @@
 ARG APP_PACKAGE=@edr/passenger-portal
 ARG APP_PATH=apps/edr-passenger-web/portal
 ARG PORT=5174
-ARG NEXT_PUBLIC_API_URL=http://localhost:4000
+ARG NEXT_PUBLIC_API_URL
 
 FROM node:24.15.0-alpine AS base
 RUN apk add --no-cache libc6-compat

scripts/deploy/sync-env-from-server.sh

@@ -60,6 +60,10 @@ for service in "$@"; do
     service_var=$(echo "${service}" | tr '[:lower:]-' '[:upper:]_')
     echo "${service_var}_PORT=${port_value}" >> "${GITHUB_ENV}"
     echo "Exported ${service_var}_PORT from ${src}"
+
+    # Forward NEXT_PUBLIC_* vars so docker compose build can inject them as build args.
+    grep -E '^[[:space:]]*NEXT_PUBLIC_[A-Za-z0-9_]+=' "${src}" \
+      | sed -E 's/^[[:space:]]*//' >> "${GITHUB_ENV}" || true
   fi
 done