feat: Add 3D Landing Page template to hub

- Added new '3D Landing Page Template' using Next.js, React Three Fiber, Framer Motion, and Tailwind CSS
- Template includes modern 3D landing page with Webflow-like aesthetics
- Uses AI_RULES_3D.md guidelines for development rules
- Points to 3d-nextjs-template GitHub repository (to be created)

Author: SFARPak

src/shared/templates.ts

@@ -57,4 +57,14 @@ export const localTemplatesData: Template[] = [
     requiresNeon: true,
     isFrontend: false, // This is a fullstack template, goes to backend folder
   },
+  {
+    id: "3d-nextjs",
+    title: "3D Landing Page Template",
+    description: "Modern 3D landing page using Next.js, React Three Fiber, Framer Motion, and Tailwind CSS.",
+    imageUrl:
+      "https://github.com/user-attachments/assets/96258e4f-abce-4910-a62a-a9dff77965f2",
+    githubUrl: "https://github.com/SFARPak/3d-nextjs-template",
+    isOfficial: true,
+    isFrontend: true,
+  },
 ];