i18n(it): address code review findings

Localize a bootstrap shot title without a source pack only when the
Nepal pack marker binds that title to the shot's id, so an operator
shot renamed to a bootstrap title in the built-in scene stays as typed.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/scenes/bootstrapTitleProvenance.test.mjs

@@ -0,0 +1,20 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { SCENE_RECIPES, displayShotTitle } from './recipes.js';
+import { setLocale } from '../i18n/index.js';
+
+test('an operator-typed title in the built-in Nepal scene stays as typed', () => {
+  const scene = SCENE_RECIPES.find((r) => r.id === 'bhote-koshi-nepal-scene');
+  assert.ok(scene, 'built-in bootstrap scene exists');
+  for (const locale of ['ru', 'es', 'it', 'zh-CN', 'zh-Hant']) {
+    setLocale(locale);
+    const title = 'Global Incident Context';
+    // A shot captured by the operator: no sourcePackId, renamed to this title.
+    const shown = displayShotTitle(
+      title,
+      { id: 'shot-user', title },
+      { id: scene.id },
+    );
+    assert.equal(shown, title, `${locale}: got ${shown}`);
+  }
+});