fix(ci): widen the locale hygiene gate to its blind spots

scripts/check-locale-hygiene.mjs

@@ -31,7 +31,12 @@ import { fileURLToPath, pathToFileURL } from 'node:url';
 
 const repoRoot = fileURLToPath(new URL('..', import.meta.url));
 
-export const SCOPE = ['apps/desktop/src', 'packages/core/src', 'packages/ui/src'];
+export const SCOPE = [
+  'apps/desktop/src',
+  'packages/core/src',
+  'packages/ui/src',
+  'packages/runtime-host/src',
+];
 
 // Both quote styles: biome leaves apps/desktop and packages/ui unformatted, so
 // `"en"` is as permanent there as `'en'`. Every pattern is global so one line
@@ -49,6 +54,13 @@ export const RULES = {
   'cjk-sniff': /\\u3400-\\u9fff|\\u4e00-\\u9fff|\\u3400-\\u4dbf|\[一-龥\]/giu,
   // `'凭据已保存': '憑證已儲存'` — translating one locale's copy by string lookup.
   'string-keyed-translation': /^\s*['"][㐀-鿿][^'"]*['"]:\s*['"]/gu,
+  // `generalizedErrorMessage(error, '处理失败')` — that helper always renders
+  // `en`, so a Han fallback makes the surface switch language by error content.
+  'han-fallback-to-en-helper': /\bgeneralizedErrorMessage\([^)]*['"][^'"]*[㐀-鿿]/gu,
+  // `title: 'Import custom pet'` in a native dialog call — the open/save panels
+  // have no catalog of their own, so a literal here ships one language.
+  'native-dialog-literal':
+    /\b(?:title|message|detail)\s*:\s*['"][A-Za-z][^'"]*['"](?=[\s\S]{0,400}?\bproperties\s*:\s*\[)/gu,
 };
 
 const EXCLUDED = /(?:^|\/)(?:__tests__|stories)\/|\.(?:test|stories)\.tsx?$/u;

scripts/check-locale-hygiene.test.mjs

@@ -78,3 +78,27 @@ test('compare fails only on growth per rule', () => {
     ['locale-literal-compare 1->2', 'cjk-sniff 0->1'],
   );
 });
+
+test('flags a Han fallback handed to the en-only helper', () => {
+  assert.deepEqual(rules("generalizedErrorMessage(error, '处理失败')"), [
+    'han-fallback-to-en-helper',
+  ]);
+  // The same helper with an English fallback is how logs and CLI output use it.
+  assert.deepEqual(rules("generalizedErrorMessage(error, 'Runtime Host lifecycle failed')"), []);
+  // The locale-taking sibling is the localized path and stays clean.
+  assert.deepEqual(rules("generalizedErrorMessageForLocale(error, '处理失败', locale)"), []);
+});
+
+test('flags a literal title in a native dialog call', () => {
+  assert.deepEqual(
+    rules("showOpenDialog({ title: 'Import custom pet', properties: ['openDirectory'] })"),
+    ['native-dialog-literal'],
+  );
+  // A catalog lookup in the same position is the shape this rule asks for.
+  assert.deepEqual(
+    rules("showOpenDialog({ title: copy.importCustomPet, properties: ['openDirectory'] })"),
+    [],
+  );
+  // `title` outside a dialog call is not a native panel.
+  assert.deepEqual(rules("const meta = { title: 'Daily review', author: 'maka' };"), []);
+});