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/main.ts

@@ -838,3 +838,9 @@ ipcMain.handle('window:updateMinWidth', (_, _sidebarExpanded: boolean) => {
   // Always use the smaller minimum width - horizontal scrolling handles any overflow
   mainWindow.setMinimumSize(MIN_WIDTH_COLLAPSED, MIN_HEIGHT);
 });
+
+// Quit the application (used when user denies sandbox risk confirmation)
+ipcMain.handle('app:quit', () => {
+  console.log('[Electron] Quitting application via IPC request');
+  app.quit();
+});