prices: fold groceries and CS skins into one price tracker (/trackers/prices) with tabs

- tab registry in #lib/price-trackers (add a tab = route + entry + icon)
- groceries -> /trackers/prices/groceries (owner-only), CS prices -> /trackers/prices/cs (public)
- old /trackers/groceries/* and /projects/cs-prices/* redirect (301 GET, 308 POST) with query
- nav: one prices entry replaces groceries and skins; cyan price-tag icon

src/routes/sitemap.xml/+server.ts

@@ -32,6 +32,7 @@ const staticPaths = [
 	'/trackers/books',
 	'/trackers/ai',
 	'/trackers/radio',
+	'/trackers/prices/cs',
 	'/trackers/spotting',
 	'/trackers/cars',
 	'/trackers/cars/brands',

src/routes/trackers/prices/+layout.svelte

@@ -0,0 +1,14 @@
+<script lang="ts">
+	// One price tracker, a tab per thing (#lib/price-trackers). Each tab keeps its own page,
+	// loader and data; this only adds the tab bar. Private tabs are only listed for me.
+	import { page } from '$app/state';
+	import Tag from 'lucide-svelte/icons/tag';
+	import SpottingSwitcher from '#lib/components/SpottingSwitcher.svelte';
+	import { visiblePriceTabs } from '#lib/price-trackers.js';
+
+	let { children } = $props();
+	const tabs = $derived(visiblePriceTabs(Boolean(page.data.isOwner)));
+</script>
+
+<SpottingSwitcher items={tabs} home="/trackers/prices" label="prices" homeIcon={Tag} />
+{@render children()}

src/routes/trackers/prices/+page.server.ts

@@ -0,0 +1,9 @@
+import { redirect } from '@sveltejs/kit';
+import { isOwner } from '#lib/server/owner.js';
+import { defaultPriceTab } from '#lib/price-trackers.js';
+import type { PageServerLoad } from './$types';
+
+// /trackers/prices has no page of its own: open the first tab this visitor can see.
+export const load: PageServerLoad = (event) => {
+	redirect(307, defaultPriceTab(isOwner(event)).href);
+};

src/routes/trackers/prices/cs/+page.svelte

@@ -28,7 +28,7 @@
 		// eslint-disable-next-line svelte/prefer-svelte-reactivity -- local, non-reactive query builder
 		const params = new URLSearchParams({ q: browseQuery, kind: browseKind, sort: browseSort });
 		params.set('offset', String(offset));
-		const response = await fetch(`/projects/cs-prices/api/skins?${params}`, { signal });
+		const response = await fetch(`/trackers/prices/cs/api/skins?${params}`, { signal });
 		if (!response.ok) throw new Error(`Search failed (${response.status})`);
 		return (await response.json()).skins as Hit[];
 	}
@@ -203,7 +203,7 @@
 			searchError = '';
 			try {
 				const response = await fetch(
-					`/projects/cs-prices/api/search?dimension=${encodeURIComponent(d)}&q=${encodeURIComponent(q)}`,
+					`/trackers/prices/cs/api/search?dimension=${encodeURIComponent(d)}&q=${encodeURIComponent(q)}`,
 					{ signal: controller.signal }
 				);
 				if (!response.ok) throw new Error(`Search failed (${response.status})`);
@@ -225,7 +225,7 @@
 		searchError = '';
 		try {
 			const response = await fetch(
-				`/projects/cs-prices/api/search?dimension=${encodeURIComponent(dimension)}&q=${encodeURIComponent(query)}&limit=1000`
+				`/trackers/prices/cs/api/search?dimension=${encodeURIComponent(dimension)}&q=${encodeURIComponent(query)}&limit=1000`
 			);
 			if (!response.ok) throw new Error(`Search failed (${response.status})`);
 			const found = (await response.json()).results as Result[];
@@ -262,7 +262,7 @@
 			loading = true;
 			error = '';
 			try {
-				const response = await fetch('/projects/cs-prices/api/series', {
+				const response = await fetch('/trackers/prices/cs/api/series', {
 					method: 'POST',
 					headers: { 'Content-Type': 'application/json' },
 					signal: controller.signal,
@@ -357,7 +357,7 @@
 			{#each hits as hit (hit.slug)}
 				<a
 					class="hit"
-					href={`/projects/cs-prices/${hit.slug}`}
+					href={`/trackers/prices/cs/${hit.slug}`}
 					style:--rarity={hit.rarity_color ?? 'transparent'}
 				>
 					{#if hit.image}<img

src/routes/trackers/prices/cs/[slug]/+page.svelte

@@ -164,7 +164,7 @@
 </svelte:head>
 
 <div class="cs-item">
-	<a class="back" href="/projects/cs-prices">← CS prices</a>
+	<a class="back" href="/trackers/prices/cs">← CS prices</a>
 	<header class="head">
 		{#if image}<img src={image} alt="" width="160" height="120" loading="eager" />{/if}
 		<div class="title">

src/routes/trackers/prices/groceries/+page.svelte

@@ -254,7 +254,7 @@
 	// ---- merge / move picker ------------------------------------------------------------------
 	async function findGroups(q: string): Promise<Hit[]> {
 		if (!q.trim()) return [];
-		const res = await fetch(`/trackers/groceries/search?q=${encodeURIComponent(q.trim())}`);
+		const res = await fetch(`/trackers/prices/groceries/search?q=${encodeURIComponent(q.trim())}`);
 		return res.ok ? ((await res.json()) as Hit[]) : [];
 	}
 	function openPicker(p: NonNullable<typeof picker>) {
@@ -487,7 +487,7 @@
 				<dd>{fmtNum(data.stats.promos)}</dd>
 			</div>
 		</dl>
-		<a href="/trackers/groceries/stats" class="stats-link">
+		<a href="/trackers/prices/groceries/stats" class="stats-link">
 			<ChartColumn size={16} aria-hidden="true" class="text-violet-500" /> stats
 		</a>
 	</header>
@@ -621,7 +621,7 @@
 				· page {data.page} of {fmtNum(pages)}{/if}</span
 		>
 		{#if data.filters.q || data.filters.category || data.filters.store || data.filters.favorites || data.filters.promo || data.filters.multi}
-			<a href="/trackers/groceries" class="clear" data-sveltekit-reset="false"
+			<a href="/trackers/prices/groceries" class="clear" data-sveltekit-reset="false"
 				><X size={12} />Clear</a
 			>
 		{/if}

src/routes/trackers/prices/groceries/stats/+page.svelte

@@ -588,7 +588,7 @@
 <div class="wrap mx-auto max-w-6xl px-4 pt-10 pb-28 sm:px-6 sm:pt-14">
 	<header class="mb-5 flex flex-wrap items-end justify-between gap-3">
 		<div>
-			<a href="/trackers/groceries" class="back"><ArrowLeft size={14} /> groceries</a>
+			<a href="/trackers/prices/groceries" class="back"><ArrowLeft size={14} /> groceries</a>
 			<h1 class="text-4xl font-semibold tracking-tight sm:text-5xl">groceries stats</h1>
 			<p class="mt-2 flex flex-wrap items-center gap-1.5 text-sm text-[var(--site-muted)]">
 				<Lock size={14} aria-hidden="true" />