poprawki bugow i dodatkowe funkcje

static/js/live.js

@@ -1,5 +1,28 @@
 const socket = io();
 
+
+// --- Automatyczny reconnect po powrocie do karty/przywróceniu internetu ---
+function reconnectIfNeeded() {
+    if (!socket.connected) {
+        socket.connect();
+    }
+}
+
+document.addEventListener("visibilitychange", function() {
+    if (!document.hidden) {
+        reconnectIfNeeded();
+    }
+});
+
+window.addEventListener("focus", function() {
+    reconnectIfNeeded();
+});
+
+window.addEventListener("online", function() {
+    reconnectIfNeeded();
+});
+// --- koniec fragmentu reconnect ---
+
 function setupList(listId, username) {
   socket.emit('join_list', { room: listId, username: username });