feat(shell): enable PTY by default and various enhancements

### Shell & Interactive Terminal Improvements
- PTY shell is now enabled by default instead of disabled
- Improved shell output rendering, process termination, and added fallback warning
- Background commands now properly capture subprocess PIDs on non-Windows

### Coding Plan Improvements
- Simplified auth message, added /model tip, improved system info display
- Reordered model list to prioritize glm-5, kimi-k2.5, MiniMax-M2.5
- Model selection is now preserved when updating if the model still exists

### Other Changes
- Added shared symlink utility; debug logs now have latest alias
- Unknown settings warnings go to debug log instead of user-facing warnings
- Fixed subagent confirmation state detection
- Removed debug UI from AgentCreationWizard

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

packages/cli/src/i18n/locales/ru.js

@@ -1461,6 +1461,10 @@ export default {
     'Доступны новые конфигурации моделей для {{region}}. Обновить сейчас?',
   '{{region}} configuration updated successfully. Model switched to "{{model}}".':
     'Конфигурация {{region}} успешно обновлена. Модель переключена на "{{model}}".',
-  'Authenticated successfully with {{region}}. API key and model configs saved to settings.json (backed up).':
-    'Успешная аутентификация с {{region}}. API-ключ и конфигурации моделей сохранены в settings.json (резервная копия создана).',
+  '{{region}} configuration updated successfully.':
+    'Конфигурация {{region}} успешно обновлена.',
+  'Authenticated successfully with {{region}}. API key and model configs saved to settings.json.':
+    'Успешная аутентификация с {{region}}. API-ключ и конфигурации моделей сохранены в settings.json.',
+  'Tip: Use /model to switch between available Coding Plan models.':
+    'Совет: Используйте /model для переключения между доступными моделями Coding Plan.',
 };