Lab Case Detail datatset load faliure fixed.

backend/Dockerfile

@@ -53,7 +53,11 @@ COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
 # Windows git/build context may use CRLF; strip before chmod (fixes dumb-init "No such file or directory").
 RUN sed -i 's/\r$//' /usr/local/bin/docker-entrypoint.sh && chmod +x /usr/local/bin/docker-entrypoint.sh
 
-RUN mkdir -p /app/logs && \
+# AdminJS writes/serves the custom-components bundle here. Avoid the default
+# ".adminjs" path — Express sendFile + nosniff can 500 on dot-directories.
+ENV ADMIN_JS_TMP_DIR=/app/adminjs-tmp
+
+RUN mkdir -p /app/logs /app/adminjs-tmp && \
     chown -R dyolink:nodejs /app
 
 USER dyolink