fix: remove non-functional soft retry and simplify ErrorBoundary

- Remove removeFailedChunkScripts() — nothing marks scripts with
  data-failed and the bundler caches rejected promises, so soft retry
  was a no-op that misleads users
- Remove Retry button; keep Reload Page + Back Home for all errors
- Remove unused app.error.retry locale key from all 8 locales
- Evaluate navigator.onLine directly in render instead of caching in
  instance field, so error UI always reflects current network status
- Limit handleOnline auto-reload to chunk load errors only, preventing
  data loss from indiscriminate reload on render errors
- Remove offline event listener (no longer needed without isOnline cache)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/components/ErrorBoundary/index.tsx

@@ -17,40 +17,11 @@ function getSubTitleId(isChunkError: boolean, isOffline: boolean): string {
     : 'app.error.chunk.description.online';
 }
 
-/**
- * Remove failed chunk script/link tags so the bundler runtime can retry loading.
- * Utoopack caches failed chunks as rejected promises; removing the DOM elements
- * and clearing its internal cache isn't possible via public API, but removing
- * the script tags gives us a clean slate on the next retry.
- */
-function removeFailedChunkScripts() {
-  const scripts = document.querySelectorAll(
-    'script[src][data-failed], link[href][data-failed]',
-  );
-  for (const el of scripts) el.remove();
-}
-
-function renderErrorFallback(
-  error: Error,
-  isOnline: boolean,
-  onReload: () => void,
-  onRetry: () => void,
-) {
+function renderErrorFallback(error: Error, onReload: () => void) {
   const intl = getIntl();
-  const isOffline = !isOnline;
+  const isOffline = !navigator.onLine;
   const isChunkError = isChunkLoadError(error);
 
-  const subTitleId = getSubTitleId(isChunkError, isOffline);
-
-  const retryButton = isChunkError ? (
-    <Button type="primary" key="retry" onClick={onRetry}>
-      {intl.formatMessage({
-        id: 'app.error.retry',
-        defaultMessage: 'Retry',
-      })}
-    </Button>
-  ) : null;
-
   return (
     <div style={{ padding: 24 }}>
       <Card variant="borderless">
@@ -65,7 +36,7 @@ function renderErrorFallback(
               : 'Something went wrong',
           })}
           subTitle={intl.formatMessage({
-            id: subTitleId,
+            id: getSubTitleId(isChunkError, isOffline),
             defaultMessage:
               isChunkError && isOffline
                 ? 'Your network connection has been lost. Please check your connection and reload.'
@@ -74,12 +45,7 @@ function renderErrorFallback(
                   : 'Sorry, an error occurred on this page. Please reload or go back to the home page.',
           })}
           extra={[
-            retryButton,
-            <Button
-              type={isChunkError ? 'default' : 'primary'}
-              key="reload"
-              onClick={onReload}
-            >
+            <Button type="primary" key="reload" onClick={onReload}>
               {intl.formatMessage({
                 id: 'app.error.reload',
                 defaultMessage: 'Reload Page',
@@ -91,7 +57,7 @@ function renderErrorFallback(
                 defaultMessage: 'Back Home',
               })}
             </Button>,
-          ].filter(Boolean)}
+          ]}
         />
       </Card>
     </div>
@@ -112,7 +78,6 @@ export default class ErrorBoundary extends React.Component<
   ErrorBoundaryState
 > {
   state: ErrorBoundaryState = { hasError: false, error: null };
-  private isOnline = typeof navigator !== 'undefined' ? navigator.onLine : true;
 
   static getDerivedStateFromError(error: Error): Partial<ErrorBoundaryState> {
     return { hasError: true, error };
@@ -120,45 +85,33 @@ export default class ErrorBoundary extends React.Component<
 
   componentDidMount() {
     window.addEventListener('online', this.handleOnline);
-    window.addEventListener('offline', this.handleOffline);
   }
 
   componentWillUnmount() {
     window.removeEventListener('online', this.handleOnline);
-    window.removeEventListener('offline', this.handleOffline);
   }
 
+  /** Auto-reload when coming back online, but only for chunk load errors. */
   handleOnline = () => {
-    this.isOnline = true;
-    if (this.state.hasError) window.location.reload();
-  };
-
-  handleOffline = () => {
-    this.isOnline = false;
+    if (
+      this.state.hasError &&
+      this.state.error &&
+      isChunkLoadError(this.state.error)
+    ) {
+      window.location.reload();
+    }
   };
 
   componentDidCatch(error: Error, info: React.ErrorInfo) {
     console.error('[ErrorBoundary]', error, info.componentStack);
   }
 
-  /** Soft retry: clear failed scripts, reset state, let React re-render. */
-  handleRetry = () => {
-    removeFailedChunkScripts();
-    this.setState({ hasError: false, error: null });
-  };
-
-  /** Hard reload: full page refresh. */
   handleReload = () => {
     window.location.reload();
   };
 
   render() {
     if (!this.state.hasError || !this.state.error) return this.props.children;
-    return renderErrorFallback(
-      this.state.error,
-      this.isOnline,
-      this.handleReload,
-      this.handleRetry,
-    );
+    return renderErrorFallback(this.state.error, this.handleReload);
   }
 }

src/locales/bn-BD/pwa.ts

@@ -8,7 +8,6 @@ export default {
   'app.error.render.title': 'কিছু ভুল হয়েছে',
   'app.error.render.description':
     'দুঃখিত, এই পৃষ্ঠায় একটি ত্রুটি ঘটেছে। দয়া করে রিফ্রেশ করুন বা হোম পৃষ্ঠায় ফিরে যান।',
-  'app.error.retry': 'আবার চেষ্টা করুন',
   'app.error.reload': 'পৃষ্ঠা রিফ্রেশ করুন',
   'app.error.home': 'হোমে ফিরে যান',
   'app.request.offline':

src/locales/en-US/pwa.ts

@@ -9,7 +9,6 @@ export default {
   'app.error.render.title': 'Something went wrong',
   'app.error.render.description':
     'Sorry, an error occurred on this page. Please reload or go back to the home page.',
-  'app.error.retry': 'Retry',
   'app.error.reload': 'Reload Page',
   'app.error.home': 'Back Home',
   'app.request.offline':

src/locales/fa-IR/pwa.ts

@@ -9,7 +9,6 @@ export default {
   'app.error.render.title': 'خطایی رخ داد',
   'app.error.render.description':
     'متأسفانه، در این صفحه خطایی رخ داد. لطفاً صفحه را بارگذاری مجدد کنید یا به صفحه اصلی بازگردید.',
-  'app.error.retry': 'تلاش مجدد',
   'app.error.reload': 'بارگذاری مجدد صفحه',
   'app.error.home': 'بازگشت به صفحه اصلی',
   'app.request.offline':

src/locales/id-ID/pwa.ts

@@ -9,7 +9,6 @@ export default {
   'app.error.render.title': 'Terjadi kesalahan',
   'app.error.render.description':
     'Maaf, terjadi kesalahan pada halaman ini. Muat ulang halaman atau kembali ke beranda.',
-  'app.error.retry': 'Coba Lagi',
   'app.error.reload': 'Muat Ulang Halaman',
   'app.error.home': 'Kembali ke Beranda',
   'app.request.offline':

src/locales/ja-JP/pwa.ts

@@ -9,7 +9,6 @@ export default {
   'app.error.render.title': 'エラーが発生しました',
   'app.error.render.description':
     '申し訳ありません、ページでエラーが発生しました。ページを再読み込みするか、ホームに戻ってください。',
-  'app.error.retry': '再試行',
   'app.error.reload': 'ページを再読み込み',
   'app.error.home': 'ホームに戻る',
   'app.request.offline':

src/locales/pt-BR/pwa.ts

@@ -9,7 +9,6 @@ export default {
   'app.error.render.title': 'Algo deu errado',
   'app.error.render.description':
     'Desculpe, ocorreu um erro nesta página. Atualize a página ou volte para a página inicial.',
-  'app.error.retry': 'Tentar novamente',
   'app.error.reload': 'Atualizar página',
   'app.error.home': 'Voltar ao Início',
   'app.request.offline':

src/locales/zh-CN/pwa.ts

@@ -7,7 +7,6 @@ export default {
   'app.error.render.title': '页面出现错误',
   'app.error.render.description':
     '抱歉，页面遇到了一些问题，请刷新页面或返回首页。',
-  'app.error.retry': '重新加载',
   'app.error.reload': '刷新页面',
   'app.error.home': '返回首页',
   'app.request.offline': '网络不可用，请检查网络连接后重试。',

src/locales/zh-TW/pwa.ts

@@ -8,7 +8,6 @@ export default {
   'app.error.render.title': '頁面出現錯誤',
   'app.error.render.description':
     '抱歉，頁面遇到了一些問題，請重新整理頁面或返回首頁。',
-  'app.error.retry': '重試',
   'app.error.reload': '重新整理頁面',
   'app.error.home': '返回首頁',
   'app.request.offline': '網路不可用，請檢查網路連線後重試。',