diff --git a/Dockerfile b/Dockerfile
index 53d650e..30fa859 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,7 @@ RUN corepack enable
 RUN corepack prepare yarn@stable --activate
 COPY package.json yarn.lock /app/
 RUN yarn install --immutable
+RUN ls -lR /app
 
 # --- Stage 2: Builder ---
 FROM node:20-alpine AS builder