Update app.py

app.py

@@ -775,6 +775,16 @@ def home_page():
 
 # ----------------------------
 # Play Page
+if 'active_game' not in st.session_state:
+    games = unified_get("games") or {}
+    if games:
+        first_game = list(games.keys())[0]
+        st.session_state['active_game'] = first_game
+    else:
+        st.warning("No games exist yet. Please create a game first.")
+
+if 'username' not in st.session_state:
+    st.session_state['username'] = "Guest"  # temporary default username
 def play_page():
     # Get active game and username
     gid = st.session_state.get('active_game')