feat(config): warn restart required when commercial mode changes

src/i18n/locales/en.json

@@ -1094,6 +1094,7 @@
     "gemini_api_key": "Gemini API key",
     "codex_api_key": "Codex API key",
     "claude_api_key": "Claude API key",
+    "commercial_mode_restart_required": "Commercial mode setting changed. Please restart the service for it to take effect",
     "copy_failed": "Copy failed",
     "link_copied": "Link copied to clipboard"
   },

src/i18n/locales/ru.json

@@ -1099,6 +1099,7 @@
     "gemini_api_key": "API-ключ Gemini",
     "codex_api_key": "API-ключ Codex",
     "claude_api_key": "API-ключ Claude",
+    "commercial_mode_restart_required": "Режим коммерческого использования изменён. Перезапустите сервис, чтобы применить изменения",
     "copy_failed": "Не удалось скопировать",
     "link_copied": "Ссылка скопирована в буфер обмена"
   },

src/i18n/locales/zh-CN.json

@@ -1094,6 +1094,7 @@
     "gemini_api_key": "Gemini API密钥",
     "codex_api_key": "Codex API密钥",
     "claude_api_key": "Claude API密钥",
+    "commercial_mode_restart_required": "商业模式开关已变更，请重启服务后生效",
     "copy_failed": "复制失败",
     "link_copied": "已复制"
   },

src/pages/ConfigPage.tsx

@@ -5,6 +5,7 @@ import CodeMirror, { ReactCodeMirrorRef } from '@uiw/react-codemirror';
 import { yaml } from '@codemirror/lang-yaml';
 import { search, searchKeymap, highlightSelectionMatches } from '@codemirror/search';
 import { keymap } from '@codemirror/view';
+import { parse as parseYaml } from 'yaml';
 import { Card } from '@/components/ui/Card';
 import { Button } from '@/components/ui/Button';
 import { Input } from '@/components/ui/Input';
@@ -17,6 +18,16 @@ import styles from './ConfigPage.module.scss';
 
 type ConfigEditorTab = 'visual' | 'source';
 
+function readCommercialModeFromYaml(yamlContent: string): boolean {
+  try {
+    const parsed = parseYaml(yamlContent);
+    if (!parsed || typeof parsed !== 'object' || Array.isArray(parsed)) return false;
+    return Boolean((parsed as Record<string, unknown>)['commercial-mode']);
+  } catch {
+    return false;
+  }
+}
+
 export function ConfigPage() {
   const { t } = useTranslation();
   const { showNotification } = useNotificationStore();
@@ -78,13 +89,19 @@ export function ConfigPage() {
   const handleSave = async () => {
     setSaving(true);
     try {
+      const previousCommercialMode = readCommercialModeFromYaml(content);
       const nextContent = activeTab === 'visual' ? applyVisualChangesToYaml(content) : content;
+      const nextCommercialMode = readCommercialModeFromYaml(nextContent);
+      const commercialModeChanged = previousCommercialMode !== nextCommercialMode;
       await configFileApi.saveConfigYaml(nextContent);
       const latestContent = await configFileApi.fetchConfigYaml();
       setDirty(false);
       setContent(latestContent);
       loadVisualValuesFromYaml(latestContent);
       showNotification(t('config_management.save_success'), 'success');
+      if (commercialModeChanged) {
+        showNotification(t('notification.commercial_mode_restart_required'), 'warning');
+      }
     } catch (err: unknown) {
       const message = err instanceof Error ? err.message : '';
       showNotification(`${t('notification.save_failed')}: ${message}`, 'error');