Use rails logger

app/services/nostr_manager/fetch_event.rb

@@ -28,7 +28,7 @@ module NostrManager
         client.on :message do |m|
           msg = JSON.parse(m) rescue nil
           if msg && msg[0] == "EVENT" && msg[2]
-            puts "#{log_prefix} Event received: #{msg[2]["id"]}"
+            Rails.logger.debug "#{log_prefix} Event received: #{msg[2]["id"]}"
             mutex.synchronize do
               event = msg[2]
               received_event.signal
@@ -48,7 +48,7 @@ module NostrManager
           end
         end
       rescue Timeout::Error
-        puts "#{log_prefix} Timeout: No event received within #{TIMEOUT} seconds"
+        Rails.logger.debug "#{log_prefix} Timeout: No event received within #{TIMEOUT} seconds"
       ensure
         thread.exit
       end