更新前端看板

backend/_check_sessions.py

@@ -0,0 +1,10 @@
+from app.db.platform_store import get_platform_store
+
+store = get_platform_store()
+with store.connect() as conn:
+    rows = conn.execute(
+        "SELECT id, user_id, login_at, logout_at, duration_seconds FROM sessions ORDER BY login_at DESC LIMIT 10"
+    ).fetchall()
+    print(f"sessions count: {len(rows)}")
+    for r in rows:
+        print(f"  user={r['user_id'][:25]}... login={r['login_at']} logout={r['logout_at']} dur={r['duration_seconds']}")