feedback1c WJ: Hidden Core damage broadcasts count only the hidden leader

Player report: "隐藏boss还没打就出了造成50%伤害播报". The BOSS_HIT ticker
("{0}博士对敌方领袖造成的伤害超过20/50/80%!") divided the player's boss damage of
the whole match (stats.bossDamage, Final Assault + Hidden Core) by the hidden
leader's pool, so the Hidden Core's first hit already announced 50 % or 80 %.
The share is now the player's damage to the current round's pool
(SharedBossPool.byPlayer) over its size; 领袖伤害 on the result keeps both rounds.

The browser's ticker strip plays its queue 5.2 s per line, so a Final Assault
line could still play over the fresh hidden leader: a BOSS_HIT line is now
dropped once the round it came in is over (ui/ticker.js tickerLineLive; lines
carry their type and round from main.js).

public/js/main.js

@@ -217,7 +217,9 @@ function wireNet() {
   });
   net.on('m.ticker', (msg) => {
     if (typeof msg.text !== 'string') return;
-    store.set((s) => ({ ticker: [...s.ticker.slice(-(TICKER_KEEP - 1)), { id: ++seq, text: msg.text, at: Date.now() }] }));
+    // type + the round it came in: a BOSS_HIT line is dropped once its boss round is over (ui/ticker.js tickerLineLive)
+    const type = typeof msg.type === 'string' ? msg.type : null;
+    store.set((s) => ({ ticker: [...s.ticker.slice(-(TICKER_KEEP - 1)), { id: ++seq, text: msg.text, at: Date.now(), type, round: s.match?.public?.round ?? null }] }));
   });
   net.on('m.emote', (msg) => {
     store.set((s) => ({ emotes: [...s.emotes.slice(-(EMOTE_KEEP - 1)), { seq: ++seq, playerId: msg.playerId, id: msg.id, at: Date.now() }] }));