fix: window.open durch <a target=_blank> ersetzt (PWA-kompatibel)

frontend/src/tools/paywallkiller.jsx

@@ -34,10 +34,6 @@ export default function PaywallKiller() {
     setErrMsg('');
   }
 
-  function handleOpenArchive() {
-    window.open(archiveUrl, '_blank');
-  }
-
   async function handlePdf() {
     const urlToUse = snapshotUrl.trim() || archiveUrl;
     if (!urlToUse) return;
@@ -136,10 +132,13 @@ export default function PaywallKiller() {
               Kopiere dann die URL aus der Adressleiste (sieht aus wie{' '}
               <span style={{ color: 'rgba(255,255,255,0.5)' }}>archive.ph/AbCdE</span>) und füge sie unten ein.
             </div>
-            <button onClick={handleOpenArchive}
-              style={{ ...S.btn(C.accent), width: '100%', fontSize: 13, marginBottom: 12 }}>
+            <a
+              href={archiveUrl}
+              target="_blank"
+              rel="noreferrer"
+              style={{ ...S.btn(C.accent), display: 'block', textAlign: 'center', textDecoration: 'none', width: '100%', boxSizing: 'border-box', fontSize: 13, marginBottom: 12 }}>
               🌐 archive.ph öffnen
-            </button>
+            </a>
 
             {/* Snapshot-URL Eingabe */}
             <div style={{ ...S.head, marginBottom: 6, fontSize: 10 }}>SNAPSHOT-URL AUS ADRESSLEISTE (optional)</div>
@@ -192,10 +191,10 @@ export default function PaywallKiller() {
             <div>
               <div style={{ color: C.error, fontFamily: 'monospace', fontSize: 12, marginBottom: errMsg.includes('CAPTCHA') ? 8 : 0 }}>{errMsg}</div>
               {errMsg.includes('CAPTCHA') && (
-                <button onClick={handleOpenArchive}
-                  style={{ ...S.btn(C.accent), fontSize: 11 }}>
+                <a href={archiveUrl} target="_blank" rel="noreferrer"
+                  style={{ ...S.btn(C.accent), display: 'inline-block', textDecoration: 'none', fontSize: 11 }}>
                   🌐 archive.ph nochmal öffnen
-                </button>
+                </a>
               )}
             </div>
           </div>