fix(landing): restore homepage view tracking (#6260)

apps/sim/app/(landing)/landing.test.tsx

@@ -0,0 +1,36 @@
+/**
+ * @vitest-environment node
+ */
+import { renderToStaticMarkup } from 'react-dom/server'
+import { describe, expect, it, vi } from 'vitest'
+
+vi.mock('@sim/emcn', () => ({
+  cn: (...values: Array<string | false | null | undefined>) => values.filter(Boolean).join(' '),
+}))
+
+vi.mock('@/app/(landing)/components', () => ({
+  Cta: () => null,
+  Features: () => null,
+  Hero: () => null,
+  HomeStructuredData: () => null,
+  Mothership: () => null,
+  ProductDemo: () => null,
+}))
+
+vi.mock('@/app/(landing)/components/landing-layout', () => ({
+  LANDING_SECTION_RHYTHM: 'gap-test',
+}))
+
+vi.mock('@/app/(landing)/landing-analytics', () => ({
+  LandingAnalytics: () => <span>landing-analytics-marker</span>,
+}))
+
+import Landing from '@/app/(landing)/landing'
+
+describe('Landing', () => {
+  it('mounts the landing page analytics tracker exactly once', () => {
+    const markup = renderToStaticMarkup(<Landing />)
+
+    expect(markup.match(/landing-analytics-marker/g)).toHaveLength(1)
+  })
+})

apps/sim/app/(landing)/landing.tsx

@@ -8,6 +8,7 @@ import {
   ProductDemo,
 } from '@/app/(landing)/components'
 import { LANDING_SECTION_RHYTHM } from '@/app/(landing)/components/landing-layout'
+import { LandingAnalytics } from '@/app/(landing)/landing-analytics'
 
 /**
  * Landing page root - owns the section order and the `<main>` content region.
@@ -26,6 +27,7 @@ import { LANDING_SECTION_RHYTHM } from '@/app/(landing)/components/landing-layou
 export default function Landing() {
   return (
     <main id='main-content' className={cn('flex flex-col', LANDING_SECTION_RHYTHM)}>
+      <LandingAnalytics />
       <HomeStructuredData />
       <Hero />
       <ProductDemo />