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.tsx

@@ -54,8 +54,9 @@ export default function AppBarScoreBadge() {
         alignItems: 'center',
         gap: '4px',
       }}
-      aria-label={`Polaris cluster score: ${score}%`}
+      aria-label={`Polaris: ${score}%`}
     >
+      <span>{'\u{1F6E1}\uFE0F'}</span>
       <span>Polaris: {score}%</span>
     </button>
   );