release: v0.16.0

See CHANGELOG.md for the full v0.16.0 entry.

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: ralksta <ralksta@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Ralf <rohlenbo79@gmail.com>
Co-authored-by: Paul Thies <110185070+ImScheinox@users.noreply.github.com>
Co-authored-by: lancetm714 <108419425+lancetm714@users.noreply.github.com>

lib/__tests__/config-cache.test.ts

@@ -10,6 +10,7 @@ vi.mock('@/lib/env', () => ({
     CACHE_TTL: 300,
     RATE_LIMIT_RPM: 120,
   },
+  normalizeApiUrl: (raw: string) => raw.replace(/\/+$/, ''),
 }));
 
 vi.mock('@/lib/secret', () => ({