feedback5 R5: split the match screen's standalone pieces out

The match-ended plate, the solo pause plate, the highlight styles and
keepEarly now live in public/js/screens/game/*.js. game.js stays the screen
entry. MatchScreen stays one component. Imports only those pieces used moved
with them. Two source pins follow the lines that moved.

public/js/screens/game/overlays.js

@@ -0,0 +1,35 @@
+// public/js/screens/game/overlays.js — the match-ended plate and the solo pause plate.
+
+import { Button, MicroLabel, html } from '../../ui/components.js';
+import { emptyMatch, store } from '../../store.js';
+import { localAsset } from '../../data.js';
+
+/** The room went back to its lobby without a result (match aborted): offer the way back. */
+export function MatchEnded() {
+  return html`<div class="awayov" role="dialog" aria-label="模拟已结束">
+    <div class="awayov__box brackets">
+      <${MicroLabel} tone="mint">SIMULATION CLOSED</${MicroLabel}>
+      <h2>本局模拟已结束</h2>
+      <p class="t-lo">同盟已返回等待室</p>
+      <${Button} variant="primary" size="lg" icon="chevronLeft" onClick=${() => store.set({ match: emptyMatch() })}>返回同盟<//>
+    </div>
+  </div>`;
+}
+
+/** Solo pause (m.public.paused): the field dims under the 暂停中 plate; 继续作战 resumes (g.pause off). */
+export function PausedOverlay({ canResume, busy, onResume, onExit }) {
+  const plate = localAsset('ui/battle', 'matte_pause');
+  return html`<div class="pauseov" role="dialog" aria-label="暂停中" data-testid="paused">
+    <div class="pauseov__box">
+      <div class="pauseov__plate" style=${plate ? `--pause-plate:url("${plate}")` : ''}>
+        <span class="pauseov__micro">PAUSED</span>
+        <h2>暂停中</h2>
+      </div>
+      <p class="pauseov__note">作战已暂停，计时与敌人行动均已停止</p>
+      <div class="pauseov__btns">
+        ${onExit ? html`<${Button} variant="secondary" size="lg" icon="exit" onClick=${onExit}>放弃模拟<//>` : null}
+        ${canResume ? html`<${Button} variant="primary" size="lg" icon="play" loading=${busy} onClick=${onResume} data-autofocus>继续作战<//>` : null}
+      </div>
+    </div>
+  </div>`;
+}