feat: add sandbox environment checks and user confirmation dialogs

- Introduced a new endpoint to check if the application is running in a containerized environment, allowing the UI to display appropriate risk warnings.
- Added a confirmation dialog for users when running outside a sandbox, requiring acknowledgment of potential risks before proceeding.
- Implemented a rejection screen for users who deny sandbox risk confirmation, providing options to restart in a container or reload the application.
- Updated the main application logic to handle sandbox status checks and user responses effectively, enhancing security and user experience.

apps/ui/src/preload.ts

@@ -50,6 +50,9 @@ contextBridge.exposeInMainWorld('electronAPI', {
   // Window management
   updateMinWidth: (sidebarExpanded: boolean): Promise<void> =>
     ipcRenderer.invoke('window:updateMinWidth', sidebarExpanded),
+
+  // App control
+  quit: (): Promise<void> => ipcRenderer.invoke('app:quit'),
 });
 
 console.log('[Preload] Electron API exposed (TypeScript)');