feat: domain-based branding (humorunits.com / dickloads.com)

- src/lib/brand.ts: Brand config map, getBrand() reads hostname server-side
- src/routes/+layout.server.ts: new, passes brand to layout
- +layout.svelte: site name and footer driven by brand config
- humorunits.com footer: 'invented conversions for ridiculous people'
- dickloads.com footer: placeholder (pending Shannon's pick)

data/units.json

@@ -20,7 +20,7 @@
       "id": "barrel",
       "label": "Barrel",
       "labelPlural": "Barrels",
-      "symbol": "dlbbl",
+      "symbol": "bbl",
       "group": "dickloads",
       "toBase": 19
     },
@@ -28,18 +28,10 @@
       "id": "hogshead",
       "label": "Hogshead",
       "labelPlural": "Hogsheads",
-      "symbol": "dlhhd",
+      "symbol": "hhd",
       "group": "dickloads",
       "toBase": 38
     },
-    {
-      "id": "assload",
-      "label": "Assload",
-      "labelPlural": "Assloads",
-      "symbol": "assl",
-      "group": "dickloads",
-      "toBase": 2
-    },
     {
       "id": "short-ton",
       "label": "Short ton",
@@ -48,14 +40,6 @@
       "group": "dickloads",
       "toBase": 76
     },
-    {
-      "id": "long-ton",
-      "label": "Long ton",
-      "labelPlural": "Long tons",
-      "symbol": "long tn",
-      "group": "dickloads",
-      "toBase": 85.1199999999
-    },
     {
       "id": "fuckton",
       "label": "Fuck ton",
@@ -64,6 +48,14 @@
       "group": "dickloads",
       "toBase": 152
     },
+    {
+      "id": "long-ton",
+      "label": "Long ton",
+      "labelPlural": "Long tons",
+      "symbol": "long tn",
+      "group": "dickloads",
+      "toBase": 85.1199999999
+    },
     {
       "id": "metric-fuckton",
       "label": "Metric fuckton",
@@ -72,6 +64,14 @@
       "group": "dickloads",
       "toBase": 170.2399999998
     },
+    {
+      "id": "assload",
+      "label": "Assload",
+      "labelPlural": "Assloads",
+      "symbol": "assl",
+      "group": "dickloads",
+      "toBase": 2
+    },
     {
       "id": "shitload",
       "label": "Shitload",

src/lib/brand.ts

@@ -0,0 +1,32 @@
+/**
+ * Brand configuration keyed by hostname (www-stripped).
+ * Add new domains here — no other changes needed.
+ */
+export interface Brand {
+  /** Site name shown in nav and page titles. */
+  name: string;
+  /** Footer tagline. */
+  footer: string;
+}
+
+const BRANDS: Record<string, Brand> = {
+  'humorunits.com': {
+    name: 'Humor Units',
+    footer: 'Humor Units — invented conversions for ridiculous people.',
+  },
+  'dickloads.com': {
+    name: 'Dick Loads',
+    footer: 'Dick Loads — serious units for serious people.',
+  },
+};
+
+const DEFAULT_BRAND = BRANDS['humorunits.com'];
+
+export function getBrand(requestUrl: string): Brand {
+  try {
+    const host = new URL(requestUrl).hostname.replace(/^www\./, '');
+    return BRANDS[host] ?? DEFAULT_BRAND;
+  } catch {
+    return DEFAULT_BRAND;
+  }
+}

src/routes/+layout.server.ts

@@ -0,0 +1,6 @@
+import { getBrand } from '$lib/brand';
+import type { LayoutServerLoad } from './$types';
+
+export const load: LayoutServerLoad = ({ request }) => {
+  return { brand: getBrand(request.url) };
+};

src/routes/+layout.svelte

@@ -2,8 +2,10 @@
   import '@picocss/pico/css/pico.min.css';
   import '../app.css';
   import { browser } from '$app/environment';
+  import type { Brand } from '$lib/brand';
 
-  let { children } = $props();
+  let { children, data }: { children: any; data: { brand: Brand } } = $props();
+  let brand = $derived(data.brand);
 
   type Theme = 'light' | 'dark' | 'dan';
   const CYCLE: Theme[] = ['light', 'dark', 'dan'];
@@ -33,7 +35,7 @@
 <header>
   <nav class="container">
     <ul>
-      <li><strong>Humor Units</strong></li>
+      <li><strong>{brand.name}</strong></li>
     </ul>
     <ul>
       <li><a href="/">Converter</a></li>
@@ -57,5 +59,5 @@
 </main>
 
 <footer class="container">
-  <small>Humor Units — invented conversions for invented purposes</small>
+  <small>{brand.footer}</small>
 </footer>