添加退出登录按钮

server.js

@@ -195,6 +195,16 @@ const createValkeySession = async (res, credentials) => {
     return sessionId;
 };
 
+const destroyValkeySession = async (req, res) => {
+    const cookies = parseCookieHeader(req.headers.cookie || '');
+    const sessionId = cookies[SESSION_COOKIE_NAME];
+    if (sessionId && valkeyEnabled && valkeyClient) {
+        await valkeyClient.del(getSessionStorageKey(sessionId));
+        console.log(`[auth] session cleared sessionId=${sessionId}`);
+    }
+    clearSessionCookie(res);
+};
+
 const loadValkeySession = async (req) => {
     if (!valkeyEnabled || !valkeyClient) {
         return null;
@@ -602,7 +612,7 @@ app.get('/api/buckets', async (req, res) => {
             await createValkeySession(res, auth);
         }
         console.log(`[s3] list buckets complete count=${buckets.length}`);
-        res.json({ buckets });
+        res.json({ buckets, username: auth.username || '' });
     } catch (error) {
         if (auth?.source === 'session') {
             clearSessionCookie(res);
@@ -612,6 +622,16 @@ app.get('/api/buckets', async (req, res) => {
     }
 });
 
+app.post('/api/logout', async (req, res) => {
+    try {
+        await destroyValkeySession(req, res);
+        res.json({ ok: true });
+    } catch (error) {
+        console.error('[auth] logout failed:', error);
+        res.status(500).json({ error: 'Failed to logout', detail: error.message });
+    }
+});
+
 // Endpoint to list videos in the bucket
 app.get('/api/videos', async (req, res) => {
     try {