feat: adicionar asset laptop cc0 para notebook story

CREDITS.md

@@ -10,6 +10,16 @@
   `Black` surface renders a live CanvasTexture of the portfolio site). CC0 does
   not require attribution; credit given anyway.
 
+## 3D model — “Laptop”
+- Author: **Kenney** (https://kenney.nl)
+- Source: https://poly.pizza/m/GnbwSUiVty
+- License: **CC0 1.0 Universal (Public Domain)**
+- Used in: `app/components/story/NotebookStage3D.tsx`,
+  file at `public/models/laptop-kenney.glb`.
+- Modifications: the downloaded open-laptop geometry was split into
+  `Laptop_Base` and `Laptop_Lid` nodes around the hinge for scroll-driven
+  animation. CC0 does not require attribution; credit given anyway.
+
 ## Project screenshots
 - `public/assets/prints/*.png` are captures taken with headless Chrome from
   production deployments owned by the site author (evandro.dev.br), used as