Refactor useAuth hook, settings components, and docs for formatting and readability improvements

- Consolidated multi-line arguments into single lines where appropriate in `useAuth`.
- Improved spacing and readability in data processing across components (`ProfileSettingsForm`, `PasswordChangeForm`, `SessionCard`).
- Applied consistent table and markdown formatting in design system docs (e.g., `README.md`, `08-ai-guidelines.md`, `00-quick-start.md`).
- Updated code snippets to ensure adherence to Prettier rules and streamlined JSX structures.

frontend/src/components/admin/users/BulkActionToolbar.tsx

@@ -62,9 +62,7 @@ export function BulkActionToolbar({
       onClearSelection();
       setPendingAction(null);
     } catch (error) {
-      toast.error(
-        error instanceof Error ? error.message : `Failed to ${pendingAction} users`
-      );
+      toast.error(error instanceof Error ? error.message : `Failed to ${pendingAction} users`);
       setPendingAction(null);
     }
   };
@@ -161,9 +159,7 @@ export function BulkActionToolbar({
         <AlertDialogContent>
           <AlertDialogHeader>
             <AlertDialogTitle>{getActionTitle()}</AlertDialogTitle>
-            <AlertDialogDescription>
-              {getActionDescription()}
-            </AlertDialogDescription>
+            <AlertDialogDescription>{getActionDescription()}</AlertDialogDescription>
           </AlertDialogHeader>
           <AlertDialogFooter>
             <AlertDialogCancel>Cancel</AlertDialogCancel>