fix: use environment variable for BACKEND_URL

docker-compose.yaml

@@ -151,7 +151,7 @@ services:
     image: ${REGISTRY:-dograhai}/dograh-ui:latest
     environment:
       # Server-side URL (SSR, internal Docker network)
-      BACKEND_URL: "http://api:8000"
+      BACKEND_URL: "${BACKEND_URL:-http://api:8000}"
       NODE_ENV: "oss"
       # Flag to enable/ disable posthog and sentry
       ENABLE_TELEMETRY: "${ENABLE_TELEMETRY:-true}"

scripts/setup_custom_domain.sh

@@ -250,6 +250,14 @@ echo -e "${BLUE}[6/8] Updating environment variables...${NC}"
 if [[ -f ".env" ]]; then
     # Update BACKEND_API_ENDPOINT to use domain
     sed -i.bak "s|^BACKEND_API_ENDPOINT=.*|BACKEND_API_ENDPOINT=https://$DOMAIN_NAME|" .env
+    # Update BACKEND_URL if present, otherwise add it
+    if grep -q "^BACKEND_URL=" .env; then
+        sed -i.bak "s|^BACKEND_URL=.*|BACKEND_URL=https://$DOMAIN_NAME|" .env
+    else
+        echo "" >> .env
+        echo "# Backend URL for UI" >> .env
+        echo "BACKEND_URL=https://$DOMAIN_NAME" >> .env
+    fi
     # Update TURN_HOST to use domain
     sed -i.bak "s|^TURN_HOST=.*|TURN_HOST=$DOMAIN_NAME|" .env
     rm -f .env.bak

scripts/setup_remote.sh

@@ -173,6 +173,9 @@ cat > .env << ENV_EOF
 # Backend API endpoint (for remote deployment)
 BACKEND_API_ENDPOINT=https://$SERVER_IP
 
+# Backend URL for UI
+BACKEND_URL=https://$SERVER_IP
+
 # TURN Server Configuration (time-limited credentials via TURN REST API)
 TURN_HOST=$SERVER_IP
 TURN_SECRET=$TURN_SECRET