Fix Thai URL decoding in catch-all route

- Added decodeURIComponent to handle URL-encoded Thai characters
- All product and portfolio pages now work correctly
- 64 static pages generated successfully

src/app/[...slug]/page.tsx

@@ -31,7 +31,9 @@ export async function generateStaticParams() {
 type ContentType = 'product' | 'portfolio';
 
 function findContentBySlug(slug: string[]): { type: ContentType; data: typeof productCategories[0] | typeof portfolioProjects[0] } | null {
-  const fullPath = '/' + slug.join('/') + '/';
+  // Decode URL-encoded slug parts
+  const decodedSlug = slug.map(part => decodeURIComponent(part));
+  const fullPath = '/' + decodedSlug.join('/') + '/';
   
   // Check products first
   const product = productCategories.find((p) => p.href === fullPath);