Fase 16.1 — reusable inline loading indicator. SVG circle with
stroke-dasharray + Tailwind animate-spin (respects motion-reduce).
Sizes: sm=16, md=24, lg=40. Inherits currentColor so it plays nicely
with the Fase 9 theme tokens. Wrapper has role=status + aria-live=polite
and an sr-only m.loading() label (no new Paraglide strings).
vitest.config: resolve.conditions=['browser'] + inline svelte so the
Svelte 5 mount() API resolves to index-client.js instead of the server
entry. Without it the new Spinner.test throws lifecycle_function_unavailable.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
