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/lib/utils.ts

@@ -59,6 +59,24 @@ export function truncate(text: string, maxLength: number): string {
   return text.slice(0, maxLength).trim() + '...';
 }
 
+/**
+ * A compact school label for tight spaces (mobile compare rows, chip bars):
+ * drop the trailing establishment-type words so "Barclay Primary School" →
+ * "Barclay", "St Mary's Catholic Primary School" → "St Mary's". Falls back to
+ * a length-capped truncation for names that don't carry a type suffix.
+ */
+export function shortName(name: string, maxLength = 20): string {
+  let s = name
+    .replace(
+      /\s+(primary|junior|infant|nursery|community|foundation|catholic|academy|school|college)\b.*$/i,
+      '',
+    )
+    .trim();
+  if (!s) s = name;
+  if (s.length > maxLength) s = s.slice(0, maxLength - 1).trim() + '…';
+  return s;
+}
+
 /**
  * Format a school's age range for display, e.g. "3-11" → "Ages 3–11".
  * Display-only — leaves the raw `age_range` field (used for sixth-form