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/lib/templates-server.ts

@@ -58,6 +58,44 @@ export async function fetchTemplate(slug: string): Promise<TemplateDetail | null
   }
 }
 
+export interface TemplateSummary {
+  id: string;
+  slug: string;
+  title: string;
+  shortDescription: string;
+  category: string;
+  status: 'draft' | 'public' | 'hidden' | 'takedown';
+  verified: boolean;
+  forkCount: number;
+  activeDeployments: number;
+  ownerName: string | null;
+  ownerOrgName: string | null;
+  sourceServerId: string | null;
+  createdAt: string;
+}
+
+/**
+ * Full public template list for server-rendering the marketplace grid so
+ * crawlers see the templates in the initial HTML. Best-effort: returns empty
+ * lists on error so the page still renders (the client component refetches
+ * on filter changes anyway).
+ */
+export async function fetchPublicTemplates(): Promise<{
+  templates: TemplateSummary[];
+  categories: string[];
+}> {
+  try {
+    const res = await fetch(`${API_BASE}/v1/templates?sort=trending`, {
+      next: { revalidate: 300 },
+    });
+    if (!res.ok) return { templates: [], categories: [] };
+    const data = (await res.json()) as { templates?: TemplateSummary[]; categories?: string[] };
+    return { templates: data.templates ?? [], categories: data.categories ?? [] };
+  } catch {
+    return { templates: [], categories: [] };
+  }
+}
+
 /** Slugs of public templates, for the sitemap. Best-effort: returns [] on error. */
 export async function fetchPublicTemplateSlugs(): Promise<string[]> {
   try {