로그인 유지와 마지막 접속 기록 개선

api/src/routes/auth.js

@@ -108,10 +108,16 @@ export function createAuthRouter(db) {
     });
 
     router.get('/me', requireAuth, (req, res) => {
+        db.prepare('UPDATE users SET last_login_at = ? WHERE id = ? AND is_active = 1').run(
+            nowIso(),
+            req.user.id,
+        );
+
         const user = db.prepare(`
             SELECT id, email, username, avatar_url AS avatarUrl, role,
                    default_deck_public AS defaultDeckPublic,
                    skip_deck_public_prompt AS skipDeckPublicPrompt,
+                   last_login_at AS lastLoginAt,
                    created_at AS createdAt, updated_at AS updatedAt
             FROM users WHERE id = ? AND is_active = 1
         `).get(req.user.id);