test: minimal Dockerfile without custom entrypoint

Dockerfile

@@ -12,14 +12,10 @@ COPY config.yaml /app/config.yaml
 COPY cleanup_tokens.sh /app/cleanup_tokens.sh
 COPY entrypoint.sh /app/entrypoint.sh
 
-# Fix missing config.example.yaml
 RUN cp /app/config.yaml /app/config.example.yaml
 RUN chmod +x /app/cleanup_tokens.sh /app/entrypoint.sh
 
-# Ensure crontabs dir exists for busybox crond
-RUN mkdir -p /etc/crontabs && touch /etc/crontabs/root
-
 ENV TZ=Asia/Shanghai
 EXPOSE 7860
 
-CMD ["/app/entrypoint.sh"]
+CMD ["./cli-proxy-api", "--config", "/app/config.yaml"]