fix(school, compare): ISI, not-yet-inspected and further-education states (H4)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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

@@ -69,6 +69,18 @@ const data: Record<string, ComparisonData> = {
 };
 
 describe('CompareOfsted', () => {
+  it('words a school without an Ofsted record from the evidence (audit H4)', () => {
+    const isi = { ...school(4, 'ISI School'), inspectorate: 'ISI' } as School;
+    const listed = { ...school(5, 'New Academy'), ofsted_listed: true } as School;
+    render(<CompareOfsted schools={[isi, listed]} data={{
+      '4': { school_info: isi, yearly_data: [] } as unknown as ComparisonData,
+      '5': { school_info: listed, yearly_data: [] } as unknown as ComparisonData,
+    }} />);
+    expect(screen.getAllByText('Inspected by ISI').length).toBeGreaterThan(0);
+    expect(screen.getAllByText('Not yet inspected').length).toBeGreaterThan(0);
+    expect(screen.queryByText(/No inspection outcome in our dataset/)).toBeNull();
+  });
+
   it('renders the three regimes without inventing an overall grade for report cards', () => {
     render(<CompareOfsted schools={schools} data={data} />);