fix: remove PDF HEAD check that was filtering out valid docs (WB returns 301 for HEAD)

app/api/documents/route.js

@@ -43,25 +43,8 @@ export async function GET() {
 
                 if (annotatablePages.length === 0) return null;
 
-                // Validate PDF URL is reachable
                 const pdfUrl = link.direct_pdf_url;
-                if (pdfUrl) {
-                    try {
-                        const pdfCheck = await fetch(pdfUrl, {
-                            method: 'HEAD',
-                            signal: AbortSignal.timeout(5000),
-                        });
-                        if (!pdfCheck.ok) {
-                            console.log(`Skipping doc_${link.index}: PDF returned ${pdfCheck.status}`);
-                            return null;
-                        }
-                    } catch (e) {
-                        console.log(`Skipping doc_${link.index}: PDF unreachable (${e.message})`);
-                        return null;
-                    }
-                } else {
-                    return null; // no PDF URL at all
-                }
+                if (!pdfUrl) return null; // no PDF URL at all
 
                 return {
                     index: link.index,