fix: logRolesBatch always updates roles, only preserves newer last_seen

server/db.js

@@ -833,10 +833,16 @@ export async function logRolesBatch(users) {
       .in('username', uniqueChatUsers.map(u => u.username));
     
     const existingMap = new Map((existingUsers || []).map(u => [u.username, new Date(u.last_seen).getTime()]));
-    const toUpsert = uniqueChatUsers.filter(u => {
+    
+    // Always update roles (is_mod/is_sub/is_vip), but only advance last_seen if newer
+    const toUpsert = uniqueChatUsers.map(u => {
        const oldTime = existingMap.get(u.username) || 0;
        const newTime = new Date(u.last_seen).getTime();
-       return newTime > oldTime;
+       return {
+         ...u,
+         // Keep last_seen as the newer of the two
+         last_seen: newTime > oldTime ? u.last_seen : (existingUsers || []).find(e => e.username === u.username)?.last_seen || u.last_seen
+       };
     });
 
     if (toUpsert.length > 0) {