feat(conversion): Google-first login, truthful dashboard, SSR marketplace, template seeding

- login: OAuth/email on top, phone collapsed behind 'Sign in with phone
  instead' (prod providers: google on, email off, sms on — a developer
  should never see a phone field as the front door)
- dashboard: plan card wired to GET /v1/billing/status; calls card shows
  '—' + pointer to per-server metrics (no user-facing usage endpoint
  exists; previous card showed invented '0 of 100,000 / Hobby')
- templates: server-rendered grid (revalidate 300) via fetchPublicTemplates,
  client browser hydrates with initial data; inviting empty state with
  labeled starter ideas instead of 'No templates yet'
- servers/new: removed upgrade nag from first analyze wait
- scripts/seed-templates.mjs: idempotent dry-run-by-default seeder driving
  the real preview->create->live->publish flow for 6 first-party templates

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SXUwmPVRTD8AKQtio6gCN5

apps/web/app/(dashboard)/dashboard/page.tsx

@@ -17,12 +17,17 @@ interface ServerRow {
 
 export default function Overview() {
   const [servers, setServers] = useState<ServerRow[] | null>(null);
+  const [plan, setPlan] = useState<string | null>(null);
   const [err, setErr] = useState<string | null>(null);
 
   useEffect(() => {
     apiFetch<{ servers: ServerRow[] }>('/v1/servers')
       .then((r) => setServers(r.servers))
       .catch((e) => setErr((e as Error).message));
+    // Real plan from billing status — never render a hardcoded tier.
+    apiFetch<{ plan: string }>('/v1/billing/status')
+      .then((r) => setPlan(r.plan))
+      .catch(() => setPlan(null));
   }, []);
 
   if (err?.includes('401')) {
@@ -46,8 +51,16 @@ export default function Overview() {
 
       <div className="mt-6 grid gap-3 md:grid-cols-3">
         <Card label="Servers" value={total.toString()} sub={`${live} live`} />
-        <Card label="Calls this period" value="0" sub="of 100,000" />
-        <Card label="Plan" value="Hobby" sub="Upgrade in Settings" />
+        <Card
+          label="Calls this period"
+          value="—"
+          sub="Per-server metrics live on each server page"
+        />
+        <Card
+          label="Plan"
+          value={plan ? plan.charAt(0).toUpperCase() + plan.slice(1) : '—'}
+          sub="Manage in Settings → Billing"
+        />
       </div>
 
       <div className="mt-10">