v0.2 Phase 4: wrapper alias layer (src/lib/ui/)

Six thin alias wrappers, same prop APIs as the underlying components.
Lets pages migrate imports from $lib/components/* to $lib/ui/* one
file at a time without touching markup, and gives Phase 5+ a place
to tighten grammar without churning every call site.

  LumotiaCard           → Card.svelte
  LumotiaStatusPill     → StatusPill.svelte
  LumotiaToggle         → Toggle.svelte (forwards bind:checked, bind:loading)
  LumotiaSettingsGroup  → SettingsGroup.svelte (typed Props for svelte-check)
  LumotiaEmptyState     → EmptyState.svelte
  LumotiaPostCaptureCard → PostCaptureCard.svelte

Per the plan, the underlying components in src/lib/components/ are
untouched. They get retired during the per-page migrations in Phase 7
once no consumer remains.

LumotiaSettingsGroup mirrors the underlying Props interface explicitly
because Svelte 5's spread-into-typed-component caught a real missing-
`title` error during svelte-check. The mirrored interface keeps call
sites type-safe when importing via $lib/ui/.

Phase 4 per-phase gate green: npm run check (0/0/4135 files),
npm test (all green), npm run test:e2e (16/16), npm run
guard:no-skeleton (clean).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/lib/ui/LumotiaCard.svelte

@@ -0,0 +1,13 @@
+<script lang="ts">
+  // v0.2 Phase 4 alias wrapper around $lib/components/Card.svelte.
+  // Same prop API; exists so pages can migrate imports progressively
+  // and so Phase 5+ can tighten grammar without churning every call
+  // site. Tone (default | subtle | danger) and elevation (flat | raised)
+  // pass through unchanged.
+  import Card from "$lib/components/Card.svelte";
+  const { children, ...rest } = $props();
+</script>
+
+<Card {...rest}>
+  {#if children}{@render children()}{/if}
+</Card>