fix: restore badge emoji, fix aria-label, and correct service proxy URL (#19)

* fix: restore badge emoji, fix aria-label, and correct service proxy URL

Three root causes for E2E test failures since March 4:

1. Service proxy URL missing http: protocol prefix — Kubernetes requires
   the format http:service-name:port, not service-name:port. This caused
   all data fetches to fail, making data-dependent components render
   empty states instead of expected content.

2. AppBarScoreBadge aria-label "Polaris cluster score: X%" doesn't match
   the E2E test regex /Polaris: \d+%/. Simplified to "Polaris: X%".

3. Shield emoji was removed from badge in commit 514de78 but E2E tests
   still assert its presence.

Fixes PRI-20

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* style: format polaris.ts to pass prettier check

The service proxy URL fix in 61bf1fe exceeded the line length limit.
Run prettier to split the long line.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: gandalf-the-greybeard[bot] <gandalf-the-greybeard[bot]@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

src/components/AppBarScoreBadge.test.tsx

@@ -131,6 +131,6 @@ describe('AppBarScoreBadge', () => {
     mockUsePolarisDataContext.mockReturnValue({ data, loading: false });
 
     render(<AppBarScoreBadge />);
-    expect(screen.getByLabelText('Polaris cluster score: 100%')).toBeInTheDocument();
+    expect(screen.getByLabelText('Polaris: 100%')).toBeInTheDocument();
   });
 });