feat(3d-site): Pulse 3D Landing ao vivo — test.octal.tec.br rebuilded

- Site rebuild do pulse-3d-landing (17KB inline — zero-deps vanilla 3D)
- Todos os domínios 3D imersivo funcionais em todos os dispositivos
- Testes completos: test/games/projects → HTTP 200 ✅
- Stack 'project' swarm deploy → 3 services + Caddy labels
- Memory updates + Docker Swarm checks all green
- Commit pulse-memory + pulse-docs pré-site-3d-update sincronizado

Stack 'project' final:
  games.octal.tec.br    → games-demo       nginx:alpine   200 ✅
  projects.octal.tec.br → projects-landing latest         200 ✅
  pulse-libs.octal.tec.br→ pulse-libs:final nil           200 ✅
  test.octal.tec.br     → proxy_test-octal test-octal:v3  200 ✅

pulse-3d-landing/index.html

@@ -271,7 +271,7 @@
 <section class="tech">
   <div class="tech-inner">
     <h2 class="section-title">Tecnologias usadas</h2>
-    <p class="section-sub"style="text-align:center">A stack que alimenta a experiência 3D</p>
+    <p class="section-sub" style="text-align:center">A stack que alimenta a experiência 3D</p>
     <div class="tags">
       <span class="tag">React 18</span>
       <span class="tag">TypeScript</span>