feedback5 WI: server toasts and ticker lines carry msgid + params so the client shows them in the player's language

messaging.js: a toast / CUSTOM ticker line is a string (its own msgid) or a shared/i18n.js msg(); frames keep
the Chinese `text` (older clients) and add `msgid` / `params`; config.broadcasts lines carry their `args`
(the client fills the localized broadcast template; the player name {0} is never translated). Templated call
sites send msg(): the grant toast 「X：获得Y」, the summon-range and terrain withdrawals, the 联防 line,
eliminated / left lines, the 远见 / 奇迹 stack payouts and the 维多利亚 hammers; game-data names go as dn().
The protocol stays backward compatible (new fields optional). Tests that captured m.toast's argument render
it with renderMessage. No gameplay change: golden unchanged.

test/match/feedback1-placement.test.js

@@ -23,6 +23,7 @@ import { DATA, makeMatch, give, giveItem, checkInvariants, chessOfTier } from '.
 import { botPrep, planLayout, fieldModel } from '../../server/match/bot.js';
 import { placementContext, canPlace as clientCanPlace, boardTargets, deployMap as clientDeployMap } from '../../public/js/ui/gameLogic.js';
 import { makeBattle } from '../helpers/battleHarness.js';
+import { renderMessage } from '../../shared/i18n.js';
 
 const STAGE = 'act2autochess_m04';
 const WATER = ['10,6', '11,6', '12,6'];
@@ -187,7 +188,7 @@ test('#9 hand and temp full: a re-orientation that would push 狼群 out is refu
   assert.equal(stackOf(ps, WOLF), null, 'its only copy is placed: no stack left to return onto');
   const toasts = [];
   const toast = m.toast.bind(m);
-  m.toast = (p, kind, text) => { toasts.push(text); return toast(p, kind, text); };
+  m.toast = (p, kind, text) => { toasts.push(renderMessage(text)); return toast(p, kind, text); }; // string or msg()
   const golden = Object.keys(DATA.items).find((id) => DATA.items[id].isGolden && DATA.items[id].itemType === 'EQUIP');
   while (ps.hand.includes(null)) giveItem(m, ps, golden);
   while (ps.temp.includes(null)) giveItem(m, ps, golden, 'temp');

test/match/playtest5-deploy.test.js

@@ -23,6 +23,7 @@ import {
 import { planLayout } from '../../server/match/bot.js';
 import { collectViolations } from '../../server/match/invariants.js';
 import { DATA, makeMatch, give, chessOfTier, checkInvariants } from './harness.js';
+import { renderMessage } from '../../shared/i18n.js';
 
 const STAGE = 'act2autochess_m01';
 const ROOT = join(dirname(fileURLToPath(import.meta.url)), '../..');
@@ -115,7 +116,8 @@ describe('#7 the Final Assault prep deploys on the boss field', () => {
     h.drive(() => m.phase === PHASE.PREP && m.round === m.gd.bossRound);
     const toasts = [];
     const toast = m.toast.bind(m);
-    m.toast = (ps, kind, text) => { toasts.push(`${ps.playerId}:${text}`); return toast(ps, kind, text); };
+    // a toast is a string or a shared/i18n.js msg(): compare its Chinese rendering
+    m.toast = (ps, kind, text) => { toasts.push(`${ps.playerId}:${renderMessage(text)}`); return toast(ps, kind, text); };
     const fields = [];
     m.deployFieldOf = ((orig) => function (ps) { const f = orig.call(this, ps); if (this.round === this.gd.hiddenRound) fields.push(f); return f; })(m.deployFieldOf);
     const placed = {};