Handle client disconnection gracefully in Thor handler

Catch EOFError, IOError, Errno::ECONNRESET, and Errno::EPIPE at the
outer handle loop so Async doesn't log scary unhandled exception traces
when clients disconnect mid-session.

Author: bradgessler

gem/terminalwire-rails/lib/terminalwire/rails.rb

@@ -198,6 +198,8 @@ def handle(adapter:, env:)
             end
           end
         end
+      rescue EOFError, IOError, Errno::ECONNRESET, Errno::EPIPE => e
+        logger.debug "ThorServer: Client disconnected (#{e.class})"
       end
     end
   end