Add private health tracker (owner-only)

- health schema: vaccinations, body_measurements, workouts, nutrition_daily,
  sleep (generated hours), medications, hair_progress, appointments
- migration with updated_at triggers; grants to personal_app only
- /trackers/health overview with add/edit/delete, owner-gated (404 otherwise),
  noindex + private no-store, hidden from listings for non-owners
- owner-only JSON/CSV import endpoint and scripts/health-import.ts

src/routes/trackers/+page.svelte

@@ -1,6 +1,8 @@
 <script lang="ts">
 	import CatalogGrid from '#lib/components/CatalogGrid.svelte';
-	import { trackers } from '#lib/projects.js';
+	import { visibleTrackers } from '#lib/projects.js';
+
+	let { data } = $props();
 </script>
 
 <div class="mx-auto max-w-6xl px-4 py-12 sm:px-6 sm:py-16">
@@ -8,5 +10,5 @@
 	<p class="mb-10 text-[var(--site-muted)]">
 		Personal data I keep track of: games, money, houses, prices, animals and lists.
 	</p>
-	<CatalogGrid items={trackers} />
+	<CatalogGrid items={visibleTrackers(data.isOwner)} />
 </div>