Use player names in two-player briscola

Classic briscola has no partnerships: its "teams" are just the two
players, but the UI labelled them Team A/Team B.

- add is_individual_game() and GameView::player_name_for_team() to the
  model;
- the briscola table HUD reads "Alice 0 — 0 Bob (target 61)" and the
  seat panels drop the Team badge for two-player games;
- the deal summary and game-over screen name the sides and the winner;
- the waiting room and join preview hide the Team badge.

briscola a quattro and scopone keep their team labels, and the match
history table is unchanged.

web/src/pages/game.rs

@@ -12,8 +12,8 @@ use crate::components::copy::CopyButton;
 use crate::components::summary::{hand_summary_modal, summary_rows};
 use crate::components::toast::toast;
 use crate::model::{
-    card_label, hand_sort_key, is_briscola, GameView, MoveView, PlayerView, Scores,
-    ServerMessage,
+    card_label, hand_sort_key, is_briscola, is_individual_game, GameView, MoveView,
+    PlayerView, Scores, ServerMessage,
 };
 use crate::pages::briscola::briscola_table;
 use crate::ws::{self, GameSocket};
@@ -433,19 +433,23 @@ fn LobbyView(game: GameView) -> View {
     let join_code = game.join_code.clone();
     let watch_link = watch_link(&game.id);
 
+    let show_teams = !is_individual_game(&game.game_type);
     let players = game
         .players
         .iter()
         .map(|p| {
             let name = p.name.clone();
             let seat = p.seat;
-            let team = p.team.clone();
+            let team_badge = show_teams.then(|| {
+                let team = p.team.clone();
+                view! { span(class="badge text-bg-info") { "Team " (team) } }
+            });
             view! {
                 li(class="list-group-item d-flex justify-content-between align-items-center") {
                     strong { (name) }
                     span {
                         span(class="badge text-bg-secondary me-2") { "Seat " (seat) }
-                        span(class="badge text-bg-info") { "Team " (team) }
+                        (team_badge)
                     }
                 }
             }
@@ -744,14 +748,24 @@ fn game_over_view(over: Option<(Scores, Option<String>)>, game: Option<GameView>
         None => view! {},
         Some((scores, winner)) => {
             let winner = winner.unwrap_or_else(|| "?".to_string());
-            let line = format!("Team {winner} wins {} – {}", scores.a, scores.b);
+            // Two-player briscola has no teams: name the winner instead.
+            let winner_label = match game.as_ref() {
+                Some(g) if is_individual_game(&g.game_type) => {
+                    g.player_name_for_team(&winner)
+                }
+                _ => format!("Team {winner}"),
+            };
+            let line = format!("{winner_label} wins {} – {}", scores.a, scores.b);
             // Spectators have no match history to look at.
             let spectator = game.as_ref().is_some_and(|g| g.spectator);
             // Explain the final hand's (scopone) or deal's (briscola)
             // scoring before the result.
             let final_summary: View = if briscola {
-                match game.as_ref().and_then(|g| g.last_deal.clone()) {
-                    Some(deal) => deal_rows(&deal),
+                match game.as_ref() {
+                    Some(g) => match g.last_deal.clone() {
+                        Some(deal) => deal_rows(g, &deal),
+                        None => view! {},
+                    },
                     None => view! {},
                 }
             } else {