fix: parse Disc qwinsta rows so RDG flap auto-logoff works (0.5.14)

Empty SESSIONNAME broke session matching; auto-disconnect failed with 'No matching Windows session'.

backend/app/services/rdp_flap_auto_disconnect.py

@@ -155,13 +155,23 @@ def _disconnect_on_workstation(
             login_event_id=login_event.id if login_event else None,
         )
 
-    matched = _sessions_for_user(parse_qwinsta_sessions(qwinsta.stdout, filter_user=user), user)
+    parsed = parse_qwinsta_sessions(qwinsta.stdout, filter_user=user)
+    matched = _sessions_for_user(parsed, user)
     if not matched and qwinsta.stdout.strip():
-        matched = _sessions_for_user(parse_qwinsta_sessions(qwinsta.stdout), user)
+        parsed = parse_qwinsta_sessions(qwinsta.stdout)
+        matched = _sessions_for_user(parsed, user)
     if not matched:
+        snippet = " ".join(qwinsta.stdout.split())[:240]
+        parsed_note = f", parsed={len(parsed)} session(s)" if parsed else ""
+        message = (
+            f"No matching Windows session for user {user} on {workstation.hostname}"
+            f"{parsed_note}"
+        )
+        if snippet:
+            message = f"{message}; qwinsta: {snippet}"
         return AutoDisconnectResult(
             ok=False,
-            message="No matching Windows session for user",
+            message=message,
             trigger_event_id=trigger_event.id,
             workstation_host_id=workstation.id,
             login_event_id=login_event.id if login_event else None,
@@ -224,11 +234,13 @@ def _auto_disconnect_rdg_flap(db: Session, event: Event) -> AutoDisconnectResult
     try:
         workstation = resolve_client_workstation(db, rdg_success)
     except ClientWorkstationNotFoundError as exc:
-        return AutoDisconnectResult(
+        result = AutoDisconnectResult(
             ok=False,
             message=str(exc),
             trigger_event_id=event.id,
         )
+        _mark_auto_disconnect(event, result=result)
+        return result
 
     rdg_end = event if event.type in RDG_END_TYPES else db.get(Event, _stored_flap_pair_id(event) or -1)
     login_event = find_workstation_login_for_rdg_end(db, rdg_end) if rdg_end is not None else None