fix: restore legacy gameplay messages and record details

packages/common/src/logging/formatLegacyLogHtml.ts

@@ -33,6 +33,7 @@ const safeSpanClasses = new Set([
     'war_type_attack',
     'war_type_defense',
     'war_type_siege',
+    'hidden_but_copyable',
 ]);
 
 const escapeText = (value: string): string =>

packages/common/test/format-legacy-log-html.test.ts

@@ -39,6 +39,9 @@ describe('formatLegacyLogHtml', () => {
         expect(formatLegacyLogHtml('<span class="unknown">미허용</span>')).toBe(
             '&lt;span class="unknown"&gt;미허용</span>'
         );
+        expect(formatLegacyLogHtml('<span class="hidden_but_copyable">(전투시드: fixed-seed)</span>')).toBe(
+            '<span class="hidden_but_copyable">(전투시드: fixed-seed)</span>'
+        );
     });
 
     it('keeps the fixed hex color form emitted by flag-change logs but rejects other inline CSS', () => {

packages/logic/src/war/engine.ts

@@ -381,7 +381,7 @@ export const resolveWarBattle = <TriggerState extends GeneralTriggerState = Gene
     const attackerNationName = (attackerUnit.getNationVar('name') as string | null) ?? 'UNKNOWN';
     const attackerName = attackerUnit.getName();
     const cityName = cityUnit.getName();
-    const seedText = input.seed ? `(전투시드: ${input.seed})` : '';
+    const seedText = input.seed ? `<span class="hidden_but_copyable">(전투시드: ${input.seed})</span>` : '';
 
     const josaRo = JosaUtil.pick(cityName, '로');
     const josaYi = JosaUtil.pick(attackerName, '이');