Add recovery Excel export and automatic account detection

koc-portal/app/page.tsx

@@ -171,7 +171,6 @@ export default function Home() {
   const [toast, setToast] = useState("");
   const [claimantName, setClaimantName] = useState("");
   const [quantity, setQuantity] = useState(1);
-  const [accountNickname, setAccountNickname] = useState("");
   const [publishUrl, setPublishUrl] = useState("");
   const [screenshot, setScreenshot] = useState<File | null>(null);
   const [creatorScreenshot, setCreatorScreenshot] = useState<File | null>(null);
@@ -269,7 +268,6 @@ export default function Home() {
   useEffect(() => {
     if (!selected) return;
     const timer = window.setTimeout(() => {
-      setAccountNickname(selected.account_nickname ?? "");
       setPublishUrl(selected.publish_url ?? "");
       setScreenshot(null);
       setCreatorScreenshot(null);
@@ -634,7 +632,6 @@ export default function Home() {
           claimToken,
           delegationToken,
           distributionId: selected.id,
-          accountNickname,
           publishUrl,
         }),
       });
@@ -840,15 +837,6 @@ export default function Home() {
               <span>1 : 1</span>
               <p>以下信息只会绑定到当前笔记，不按顺序批量匹配。</p>
             </div>
-            <label>
-              <span>发布账号昵称</span>
-              <input
-                value={accountNickname}
-                onChange={(event) => setAccountNickname(event.target.value)}
-                placeholder="例如：小满的轻生活"
-                required
-              />
-            </label>
             <label>
               <span>发布链接</span>
               <input
@@ -860,7 +848,7 @@ export default function Home() {
                 required
               />
               <small className="field-hint">
-                系统会自动提取分享文案中的小红书链接
+                系统会自动提取链接，并识别发布账号
               </small>
             </label>
             <label>