fix(compare): Ofsted rows show the grade still in force and the latest visit

'Inspected' is the school's latest visit, so Washwood Heath reads 21 May 2025 rather than '3 Mar 2020 · 4+ years ago' (audit M1). The Result row names the inspection a grade came from, or says 'No overall grade'; 'Grade carried forward' and 'transitional framework' go.

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

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

@@ -33,18 +33,26 @@ function ofsted(partial: Partial<OfstedInspection>): OfstedInspection {
   };
 }
 
-const schools = [school(1, 'Graded School'), school(2, 'Carried School'), school(3, 'Card School')];
+const schools = [school(1, 'Graded School'), school(2, 'Confirmed School'), school(3, 'Card School')];
 
 const data: Record<string, ComparisonData> = {
   '1': {
     school_info: schools[0],
     yearly_data: [],
-    ofsted: ofsted({ overall_effectiveness: 1, grade_source: 'graded' }),
+    ofsted: ofsted({
+      overall_effectiveness: 1,
+      current_grade: { grade: 1, date: '2021-10-07', basis: 'graded' },
+      latest_visit: { date: '2021-10-07', kind: 'graded', outcome: null },
+    }),
   },
   '2': {
     school_info: schools[1],
     yearly_data: [],
-    ofsted: ofsted({ overall_effectiveness: 2, grade_source: 'ungraded_carried_forward' }),
+    ofsted: ofsted({
+      overall_effectiveness: 2,
+      current_grade: { grade: 2, date: '2023-03-14', basis: 'confirmed' },
+      latest_visit: { date: '2023-03-14', kind: 'ungraded', outcome: 'School remains Good' },
+    }),
   },
   '3': {
     school_info: schools[2],
@@ -65,9 +73,9 @@ describe('CompareOfsted', () => {
     render(<CompareOfsted schools={schools} data={data} />);
 
     expect(screen.getByText('Outstanding')).toBeInTheDocument();
-    // Carried-forward grade is shown but marked as such
+    // A grade confirmed at an ungraded visit says so, with that visit's date
     expect(screen.getByText('Good')).toBeInTheDocument();
-    expect(screen.getByText(/carried forward/i)).toBeInTheDocument();
+    expect(screen.getByText('Confirmed at an ungraded inspection, 14 March 2023')).toBeInTheDocument();
     // Report card: label present, no overall-grade badge for that school
     expect(screen.getByText('Report card')).toBeInTheDocument();
     expect(screen.getByText(/no overall grade/i)).toBeInTheDocument();
@@ -104,7 +112,7 @@ describe('CompareOfsted', () => {
         yearly_data: [],
         ofsted: ofsted({
           overall_effectiveness: 2,
-          grade_source: 'graded',
+          current_grade: { grade: 2, date: '2021-10-07', basis: 'graded' },
           quality_of_education: 1,
           early_years_provision: 9,
           sixth_form_provision: 2,
@@ -167,4 +175,26 @@ describe('CompareOfsted', () => {
     expect(screen.getAllByText('Graded').length).toBe(4);
     expect(screen.getAllByText('Card').length).toBe(4);
   });
+
+  it('dates "Inspected" by the latest visit, not the graded inspection (Washwood Heath)', () => {
+    const s1 = school(7, 'Washwood Heath Academy');
+    render(<CompareOfsted schools={[s1]} data={{ '7': { school_info: s1, yearly_data: [], ofsted: ofsted({
+      inspection_date: '2020-03-03', overall_effectiveness: 2, quality_of_education: 2,
+      current_grade: { grade: 2, date: '2020-03-03', basis: 'graded' },
+      latest_visit: { date: '2025-05-21', kind: 'ungraded', outcome: 'Standards maintained' },
+    }) } }} />);
+    expect(screen.getByText(/21 May 2025/)).toBeInTheDocument();
+    expect(screen.queryByText('4+ years ago')).not.toBeInTheDocument();
+    expect(screen.getByText('Graded inspection, 3 March 2020')).toBeInTheDocument();
+  });
+
+  it('shows no overall grade after a no-grade inspection (Rabbsfarm)', () => {
+    const s1 = school(8, 'Rabbsfarm Primary School');
+    render(<CompareOfsted schools={[s1]} data={{ '8': { school_info: s1, yearly_data: [], ofsted: ofsted({
+      inspection_date: '2025-06-17', quality_of_education: 3,
+      current_grade: null, latest_visit: { date: '2025-06-17', kind: 'graded', outcome: null },
+    }) } }} />);
+    expect(screen.getAllByText('No overall grade').length).toBeGreaterThan(0);
+    expect(screen.queryByText('Good')).not.toBeInTheDocument();
+  });
 });