Merge branch 'per-subdomain-contact-pages' (task 09)

# Conflicts:
#	src/routes/contact.tsx

src/routes/nessa/contact.tsx

@@ -0,0 +1,21 @@
+import { ContactForm } from "~/components/ContactForm";
+
+/**
+ * Nessa contact page (`nessa.freno.me/contact`).
+ *
+ * Thin wrapper over the shared `<ContactForm>` (task 09). Site awareness —
+ * subject prefix `[Nessa]`, recipient label, heading, and PageHead metadata —
+ * is derived from `useSite()` inside the component via
+ * `CONTACT_CONTEXT.nessa`, so this route needs no explicit props.
+ *
+ * vercel.json rewrites `nessa.freno.me/*` → the internal `/nessa/*` route
+ * prefix; the browser URL stays `nessa.freno.me/contact` so the canonical and
+ * Turnstile origin resolve correctly.
+ *
+ * Acceptance: `nessa.localhost:3000/contact` renders the contact form with
+ * Nessa branding; submissions email `michael@freno.me` with subject
+ * `[Nessa] Contact Request`.
+ */
+export default function NessaContactPage() {
+  return <ContactForm />;
+}