Change default port to 7860 for Hugging Face Spaces compatibility

Dockerfile

@@ -76,5 +76,5 @@ COPY --chown=rails:rails --from=build /rails /rails
 ENTRYPOINT ["/rails/bin/docker-entrypoint"]
 
 # Start server - all startup logic handled by bin/start.sh
-EXPOSE 8080
+EXPOSE 7860
 CMD ["./bin/start.sh"]

bin/start.sh

@@ -51,7 +51,7 @@ if [ "$SKIP_CREDENTIALS" = false ]; then
 	bundle exec rails assets:precompile || true
 fi
 
-echo "[container] Starting Rails server on 0.0.0.0:${PORT:-8080}"
+echo "[container] Starting Rails server on 0.0.0.0:${PORT:-7860}"
 echo "[container] Ready to accept requests!"
 
 # Use exec to replace the shell process with Rails server

config/puma.rb

@@ -28,11 +28,11 @@
 threads_count = ENV.fetch("RAILS_MAX_THREADS", 3)
 threads threads_count, threads_count
 
-# Specifies the `port` that Puma will listen on to receive requests; default is 8080 to match container environments.
-port ENV.fetch("PORT", 8080)
+# Specifies the `port` that Puma will listen on to receive requests; default is 7860 for Hugging Face Spaces.
+port ENV.fetch("PORT", 7860)
 
 # Bind explicitly to all interfaces in container environments.
-bind "tcp://0.0.0.0:#{ENV.fetch('PORT', 8080)}"
+bind "tcp://0.0.0.0:#{ENV.fetch('PORT', 7860)}"
 
 # Allow puma to be restarted by `bin/rails restart` command.
 plugin :tmp_restart