Update Dockerfile

Dockerfile

@@ -4,10 +4,10 @@ FROM ghcr.io/imputnet/cobalt:11 AS cobalt
 # Stage 2: Debian base (required for Cloudflare WARP)
 FROM debian:bookworm-slim
 
-# Node.js 20 + Cloudflare WARP
+# Node.js 20 + Cloudflare WARP + netcat
 RUN apt-get update && apt-get install -y --no-install-recommends curl gpg ca-certificates && \
     curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
-    apt-get install -y --no-install-recommends nodejs && \
+    apt-get install -y --no-install-recommends nodejs netcat-openbsd && \
     curl -fsSL https://pkg.cloudflareclient.com/pubkey.gpg | \
       gpg --dearmor -o /usr/share/keyrings/cloudflare-warp-archive-keyring.gpg && \
     echo "deb [signed-by=/usr/share/keyrings/cloudflare-warp-archive-keyring.gpg] \