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/components/briscola.rs

@@ -7,9 +7,23 @@
 use sycamore::prelude::*;
 
 use crate::components::card::{card_back, card_img};
-use crate::model::{DealSummary, GameView};
+use crate::model::{is_individual_game, DealSummary, GameView};
 use crate::ws::GameSocket;
 
+/// Names of the two sides: the players' names for games without
+/// partnerships (classic two-player briscola), "Team A"/"Team B"
+/// otherwise.
+fn side_names(game: &GameView) -> (String, String) {
+    if is_individual_game(&game.game_type) {
+        (
+            game.player_name_for_team("A"),
+            game.player_name_for_team("B"),
+        )
+    } else {
+        ("Team A".to_string(), "Team B".to_string())
+    }
+}
+
 /// One explanatory row: icon, title, plain-language sentence, points chip.
 fn summary_row(
     icon: View,
@@ -31,9 +45,10 @@ fn summary_row(
 }
 
 /// The scoring rows of one completed deal (also used by the final screen).
-pub fn deal_rows(summary: &DealSummary) -> View {
+pub fn deal_rows(game: &GameView, summary: &DealSummary) -> View {
     let a = summary.points.a;
     let b = summary.points.b;
+    let (name_a, name_b) = side_names(game);
     let cls = if summary.patta {
         "score-row tie"
     } else if a > b {
@@ -54,7 +69,7 @@ pub fn deal_rows(summary: &DealSummary) -> View {
     let points_row = summary_row(
         card_img("01D".to_string(), "score-mini"),
         "Deal points",
-        format!("Team A {a} · Team B {b}"),
+        format!("{name_a} {a} · {name_b} {b}"),
         cls,
         chip,
     );
@@ -62,7 +77,7 @@ pub fn deal_rows(summary: &DealSummary) -> View {
         summary_row(
             card_back("score-mini"),
             "Cards captured",
-            format!("Team A {} · Team B {}", c.a, c.b),
+            format!("{name_a} {} · {name_b} {}", c.a, c.b),
             "score-row",
             format!("{} · {}", c.a, c.b),
         )
@@ -87,10 +102,11 @@ fn totals(game: &GameView, summary: &DealSummary) -> View {
     } else {
         (summary.points.a, summary.points.b)
     };
+    let (name_a, name_b) = side_names(game);
     view! {
         div(class="totals") {
             div(class="total-row team-a") {
-                span(class="total-label") { "Team A" }
+                span(class="total-label") { (name_a) }
                 div(class="progress") {
                     div(class="progress-fill", style=format!("width: {pct_a}%")) {}
                 }
@@ -100,7 +116,7 @@ fn totals(game: &GameView, summary: &DealSummary) -> View {
                 }
             }
             div(class="total-row team-b") {
-                span(class="total-label") { "Team B" }
+                span(class="total-label") { (name_b) }
                 div(class="progress") {
                     div(class="progress-fill", style=format!("width: {pct_b}%")) {}
                 }
@@ -151,7 +167,7 @@ pub fn deal_summary_modal(
     });
 
     let title = format!("Deal {} — results", summary.deal);
-    let rows = deal_rows(&summary);
+    let rows = deal_rows(&game, &summary);
     let totals_view = totals(&game, &summary);
 
     let action = if game.spectator {