Fix: Bind wws to 0.0.0.0 for container networking

The wws server was binding to 127.0.0.1 by default, which doesn't
allow external connections. Explicitly set --host 0.0.0.0.

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Dockerfile

@@ -7,5 +7,6 @@ COPY . .
 
 EXPOSE 8080
 
-# The wws image already has an entrypoint, just use the path
+# Run wws with explicit host binding to 0.0.0.0 for container networking
-CMD ["/app"]
+ENTRYPOINT ["wws"]
+CMD ["--host", "0.0.0.0", "/app"]