fix(search): show applied type and faith by label, in any case

The results list's chip printed the school type group's key ("post16")
rather than its label. A URL value that no option spelled the same way
(an old link's raw GIAS type, or a key in another case) left the select
reading "Any school type" while the list stayed filtered, and choosing
"Any" changed nothing. Values now match options ignoring case, as the
API does, and an unlisted one is shown as an option of its own.

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

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

@@ -112,3 +112,27 @@ describe('Faith', () => {
     expect(within(openSheet()).queryByRole('combobox', { name: 'Faith' })).not.toBeInTheDocument();
   });
 });
+
+describe('a URL value the options do not spell the same way', () => {
+  const row = () => screen.getByRole('group', { name: 'Filters' });
+
+  it('shows an old raw-label type in the select, and lets "Any" clear it', () => {
+    params = new URLSearchParams('search=school&school_type=Community+school');
+    render(<FilterBar filters={filters} />);
+    const type = within(row()).getByRole('combobox', { name: 'School type' });
+    expect(type).toHaveValue('Community school');
+    expect(within(type).getByRole('option', { name: 'Community school' })).toBeInTheDocument();
+    fireEvent.change(type, { target: { value: '' } });
+    expect(pushedParams().get('school_type')).toBeNull();
+  });
+
+  it('matches a key in another case, in the select and the chip', () => {
+    params = new URLSearchParams('postcode=SW196AR&radius=1&school_type=Special&faith=Roman_Catholic');
+    render(<FilterBar filters={filters} />);
+    expect(within(row()).getByRole('combobox', { name: 'School type' })).toHaveValue('special');
+    expect(screen.getByRole('button', { name: 'Remove filter: Special school (SEND)' })).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'Remove filter: Roman Catholic' })).toBeInTheDocument();
+    expect(screen.getByRole('combobox', { name: 'Faith' })).toHaveValue('roman_catholic');
+  });
+});
+

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

@@ -166,3 +166,14 @@ describe('the folded search', () => {
     expect(screen.queryByRole('button', { name: /Edit search/ })).not.toBeInTheDocument();
   });
 });
+
+describe('the results list filter chips', () => {
+  it('name a school type group by its label, not its key', () => {
+    params = new URLSearchParams('search=southmead&school_type=council');
+    const { container } = render(<HomeView initialSchools={results()} filters={filters} />);
+    const chips = container.querySelector('[class*="activeFilters"]')!;
+    expect(chips).toHaveTextContent('State school: council-run');
+    expect(chips).not.toHaveTextContent(/\bcouncil\b(?!-run)/);
+  });
+});
+