cli: avoid data-dir initialization for version; create db parent dirs; redact generated passwords in CLI output

- Prevent 'nx9-wg version' from creating data directories by avoiding database initialization.
- Create parent directories when an explicit --database path is provided.
- Redact printed generated administrator passwords; announce file path or redact instead.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

crates/nx9-wg-ui/src/lib.rs

@@ -0,0 +1,21 @@
+//! Responsive UI/UX Design System and Frontend Application for nx9-wg.
+
+pub mod components;
+pub mod css;
+pub mod pages;
+pub mod theme;
+
+pub use components::admin_view::AdministratorState;
+pub use components::app_shell::AppShellState;
+pub use components::client_export_modal::ClientExportState;
+pub use components::dashboard_view::DashboardState;
+pub use components::diagnostics_view::{DiagnosticsViewState, SubsystemCardView};
+pub use components::live_state_view::LiveStateView;
+pub use components::peer_modal::PeerModalState;
+pub use components::peer_table::{
+    PeerRowView, PeerTableFilter, format_bytes, format_relative_time,
+};
+pub use components::settings_view::SettingsState;
+pub use css::generate_stylesheet;
+pub use pages::{NavSection, Page};
+pub use theme::{DesignTokens, SemanticStatus, ThemeMode};