fix(compare): mobile measure-first cards to match the mockup

The grid sections (At a glance, Ofsted, Getting a place, Who goes there)
collapsed generically on mobile — grey label pills, full names wrapping
to 3 lines, no dots — making the page ~2x the mockup's height and
'significantly different' from the mobile design.

Each measure is now wrapped in a <Measure> that is display:contents on
desktop (so the label + cells still flow into the shared aligned grid,
unchanged) and a white card on mobile with compact [dot][short name]
[value] rows — matching the mobile mockup. The sticky school bar becomes
scrollable short-name pills on mobile too. Adds a shortName() util.

Desktop layout is unchanged (display:contents dissolves the wrapper).
Validated the card mechanism and real content shapes (report-card cell,
badges, %+chip rows) via static previews at both widths.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0146VHeLAWjDVE2B5uU67jCB

nextjs-app/__tests__/components/CompareOfsted.test.tsx

@@ -95,4 +95,12 @@ describe('CompareOfsted', () => {
     expect(links).toHaveLength(3);
     expect(links[0]).toHaveAttribute('href', 'https://reports.ofsted.gov.uk/provider/21/1');
   });
+
+  it('renders a per-measure mobile tag with the short school name', () => {
+    render(<CompareOfsted schools={schools} data={data} />);
+    // Each measure repeats the schools, so the short name ("Graded" from
+    // "Graded School") appears once per measure (4) via the cell tag.
+    expect(screen.getAllByText('Graded').length).toBe(4);
+    expect(screen.getAllByText('Card').length).toBe(4);
+  });
 });

nextjs-app/__tests__/lib/utils.test.ts

@@ -10,6 +10,7 @@ import {
   debounce,
   buildOfstedListBadge,
   metricKind,
+  shortName,
   computeYBounds,
 } from '@/lib/utils';
 
@@ -223,3 +224,17 @@ describe('isProposedToClose', () => {
     expect(isProposedToClose({})).toBe(false);
   });
 });
+
+describe('shortName', () => {
+  it('drops the trailing establishment-type words', () => {
+    expect(shortName('Barclay Primary School')).toBe('Barclay');
+    expect(shortName('Elmhurst Primary School')).toBe('Elmhurst');
+    expect(shortName("St Mary's Catholic Primary School")).toBe("St Mary's");
+    expect(shortName('Riverside Community Junior School')).toBe('Riverside');
+  });
+
+  it('keeps a name that carries no type suffix, capping very long ones', () => {
+    expect(shortName('Beaver Road')).toBe('Beaver Road');
+    expect(shortName('A'.repeat(30), 10)).toBe('AAAAAAAAA…');
+  });
+});