Update Dockerfile

Dockerfile

@@ -34,7 +34,7 @@ RUN apt-get update && \
 ###############################################################################
 ENV PLAYWRIGHT_BROWSERS_PATH=/home/node/.cache/ms-playwright
 
-# Run as root to ensure correct install location
+# install as root so chromium is available system-wide, then fix perms
 USER root
 RUN npx playwright install --with-deps chromium && \
     mkdir -p /home/node/.cache/ms-playwright && \
@@ -44,12 +44,12 @@ USER node
 ###############################################################################
 # 3. Startup script (clone repo at run-time like the second Dockerfile)
 ###############################################################################
-COPY <<'EOF' /usr/local/bin/start.sh
+COPY <<'start.sh' /usr/local/bin/start.sh
 #!/usr/bin/env bash
 set -e
 
-echo "Cloning \$REPO …"
-git clone --depth 1 "\$REPO" /tmp/app
+echo "Cloning $REPO …"
+git clone --depth 1 "$REPO" /tmp/app
 cd /tmp/app
 
 # (Optional) if your repo has devDependencies you need at runtime,
@@ -60,7 +60,7 @@ npm install --omit=dev
 chmod -R 777 /tmp/app
 
 exec npm start
-EOF
+start.sh
 
 RUN chmod +x /usr/local/bin/start.sh