Add portfolio projects to catch-all route

- Updated [...slug] to handle both product categories and portfolio projects
- Added 15 portfolio project pages
- Added PortfolioProject type to types/index.ts
- Build now generates 64 static pages (38 products + 15 portfolio + 3 blog + 8 main)

src/types/index.ts

@@ -64,6 +64,14 @@ export interface PortfolioItem {
   description: string;
 }
 
+export interface PortfolioProject {
+  id: string;
+  name: string;
+  href: string;
+  image: string;
+  description: string;
+}
+
 // Contact Form Types
 export interface ContactFormData {
   name: string;