fix: complete authenticated docker onboard smoke

scripts/docker-onboard-smoke.sh

@@ -9,6 +9,7 @@ DATA_DIR="${DATA_DIR:-$REPO_ROOT/data/docker-onboard-smoke}"
 HOST_UID="${HOST_UID:-$(id -u)}"
 PAPERCLIP_DEPLOYMENT_MODE="${PAPERCLIP_DEPLOYMENT_MODE:-authenticated}"
 PAPERCLIP_DEPLOYMENT_EXPOSURE="${PAPERCLIP_DEPLOYMENT_EXPOSURE:-private}"
+BETTER_AUTH_SECRET="${BETTER_AUTH_SECRET:-paperclip-onboard-smoke-secret}"
 DOCKER_TTY_ARGS=()
 
 if [[ -t 0 && -t 1 ]]; then
@@ -38,5 +39,6 @@ docker run --rm \
   -e PORT=3100 \
   -e PAPERCLIP_DEPLOYMENT_MODE="$PAPERCLIP_DEPLOYMENT_MODE" \
   -e PAPERCLIP_DEPLOYMENT_EXPOSURE="$PAPERCLIP_DEPLOYMENT_EXPOSURE" \
+  -e BETTER_AUTH_SECRET="$BETTER_AUTH_SECRET" \
   -v "$DATA_DIR:/paperclip" \
   "$IMAGE_NAME"