fix: keep admin toasts above the save bar so they never cover discard or save

components/admin/__tests__/save-bar.test.tsx

@@ -50,4 +50,18 @@ describe('AdminSaveBar', () => {
     expect(screen.getByTestId('page').querySelector('[data-testid="admin-save-bar"]')).toBeNull();
     host.remove();
   });
+  it('lifts toasts above itself while it is shown', () => {
+    // A toast over Discard / Save changes caught the clicks meant for them.
+    const rect = vi.spyOn(HTMLElement.prototype, 'getBoundingClientRect').mockImplementation(function (this: HTMLElement) {
+      return this.dataset.testid === 'admin-save-bar'
+        ? ({ top: window.innerHeight - 57, bottom: window.innerHeight, left: 0, right: 800, width: 800, height: 57 } as DOMRect)
+        : ({ top: 0, bottom: 0, left: 0, right: 0, width: 0, height: 0 } as DOMRect);
+    });
+    const root = document.documentElement.style;
+    const { rerender } = render(<AdminSaveBar dirty onSave={() => {}} />);
+    expect(root.getPropertyValue('--bottom-controls-height')).toBe('57px');
+    rerender(<AdminSaveBar dirty={false} onSave={() => {}} />);
+    expect(root.getPropertyValue('--bottom-controls-height')).toBe('');
+    rect.mockRestore();
+  });
 });

components/admin/save-bar.tsx

@@ -4,6 +4,7 @@ import { useEffect, type ReactNode } from 'react';
 import { createPortal } from 'react-dom';
 import { Loader2 } from '@/components/icons';
 import { Button } from '@/components/ui/button';
+import { useBottomControls } from '@/hooks/use-bottom-controls';
 import { useAdminShell } from './shell-context';
 
 interface AdminSaveBarProps {
@@ -21,9 +22,12 @@ interface AdminSaveBarProps {
  * The one place a page saves from. It appears at the bottom of the panel
  * while something is unsaved (through the shell's portal host, so it sits
  * below the scrolling content and above the mobile rail) and takes Ctrl+S.
+ * It registers as a bottom bar, so toasts sit above it instead of over its
+ * buttons.
  */
 export function AdminSaveBar({ dirty, saving = false, onSave, onDiscard, saveLabel = 'Save changes', note }: AdminSaveBarProps) {
   const host = useAdminShell()?.saveBarHost ?? null;
+  const barRef = useBottomControls(dirty);
 
   useEffect(() => {
     if (!dirty) return;
@@ -41,6 +45,7 @@ export function AdminSaveBar({ dirty, saving = false, onSave, onDiscard, saveLab
 
   const bar = (
     <div
+      ref={barRef}
       role="region"
       aria-label="Unsaved changes"
       data-testid="admin-save-bar"