fix: add error handling for i18n translation loading in AppPlugin

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

packages/runtime/src/app-plugin.test.ts

@@ -209,5 +209,27 @@ describe('AppPlugin', () => {
 
             expect(mockI18n.loadTranslations).toHaveBeenCalledTimes(3);
         });
+
+        it('should handle errors in loadTranslations gracefully', async () => {
+            mockI18n.loadTranslations.mockImplementation((locale: string) => {
+                if (locale === 'zh-CN') throw new Error('Disk read failed');
+            });
+
+            const bundle = {
+                id: 'com.test.error',
+                translations: [
+                    { en: { messages: { save: 'Save' } }, 'zh-CN': { messages: { save: '保存' } } },
+                ],
+            };
+            const plugin = new AppPlugin(bundle);
+            await plugin.start!(mockContext);
+
+            // en should still be loaded despite zh-CN failure
+            expect(mockI18n.loadTranslations).toHaveBeenCalledWith('en', { messages: { save: 'Save' } });
+            expect(mockContext.logger.warn).toHaveBeenCalledWith(
+                expect.stringContaining('Failed to load translations'),
+                expect.objectContaining({ locale: 'zh-CN' })
+            );
+        });
     });
 });

packages/runtime/src/app-plugin.ts

@@ -233,8 +233,12 @@ export class AppPlugin implements Plugin {
             // Each bundle is a TranslationBundle: Record<locale, TranslationData>
             for (const [locale, data] of Object.entries(bundle)) {
                 if (data && typeof data === 'object') {
-                    i18nService.loadTranslations(locale, data as Record<string, unknown>);
-                    loadedLocales++;
+                    try {
+                        i18nService.loadTranslations(locale, data as Record<string, unknown>);
+                        loadedLocales++;
+                    } catch (err: any) {
+                        ctx.logger.warn('[i18n] Failed to load translations', { appId, locale, error: err.message });
+                    }
                 }
             }
         }