feat: enhance MCP server management and system settings

- Added functionality to save MCP server configurations as templates in the MCP Manager.
- Implemented new hooks for managing system settings including Chinese response, Windows platform, and Codex CLI enhancements.
- Updated API calls to support fetching and toggling system settings.
- Introduced UI components for displaying and managing response language settings and system status.
- Enhanced error handling and notifications for server deletion and template saving actions.
- Updated localization files for new settings and descriptions in English and Chinese.

ccw/frontend/src/hooks/useMcpServers.ts

@@ -189,6 +189,7 @@ export function useDeleteMcpServer(): UseDeleteMcpServerReturn {
       deleteMcpServer(serverName, scope, { projectPath: projectPath ?? undefined }),
     onSettled: () => {
       queryClient.invalidateQueries({ queryKey: mcpServersKeys.all });
+      queryClient.invalidateQueries({ queryKey: ['ccwMcpConfig'] });
     },
   });