Fix resumeRound: send resume_round type instead of open_round to preserve buzzes

src/public/script.js

@@ -354,10 +354,8 @@ function toggleRound(){
 }
 
 function resumeRound(){
-    // Open round WITHOUT resetting buzzes (for accidental close recovery)
-    // We need to open the round but keep existing buzzer state
-    // For now, this just opens the round
-    ws_send({type:'open_round'});
+    // Open round WITHOUT clearing existing buzzes (for accidental close recovery)
+    ws_send({type:'resume_round'});
 }
 
 function renderRoundButtons(){