fix: mitigar aviso de preload no usado filtrando cabecera Link de CSS

Co-authored-by: aider (openrouter/openai/gpt-5) <aider@aider.chat>

apps/web/src/hooks.server.ts

@@ -78,6 +78,21 @@ export const handle: Handle = async ({ event, resolve }) => {
 			response.headers.set('X-Frame-Options', 'DENY');
 			response.headers.set('Referrer-Policy', 'no-referrer');
 			response.headers.set('X-Content-Type-Options', 'nosniff');
+
+			// Mitigar aviso de “preload no usado” en CSS:
+			// Filtrar del header Link los preloads con as=style (dejamos modulepreload para JS).
+			const link = response.headers.get('Link') || response.headers.get('link');
+			if (link) {
+				const filtered = link
+					.split(',')
+					.map((s) => s.trim())
+					.filter((seg) => !/;\s*as=style\b/i.test(seg));
+				if (filtered.length > 0) {
+					response.headers.set('Link', filtered.join(', '));
+				} else {
+					response.headers.delete('Link');
+				}
+			}
 		}
 	} catch {
 		// Ignorar si la implementación de Response no permite set()