feat: close workstation login on RDG 303 disconnect (0.4.6)

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/services/host_sessions.py

@@ -7,6 +7,8 @@ import re
 from dataclasses import dataclass
 from datetime import datetime, timezone
 
+from sqlalchemy.orm import Session
+
 from app.models import Event, Host
 from app.services.event_actor_user import extract_event_actor_user
 from app.services.linux_admin_settings import LinuxAdminConfig
@@ -81,12 +83,23 @@ def _event_login_user(event: Event) -> str:
     return str(_details_dict(event).get("user") or "").strip()
 
 
-def event_session_terminated(event: Event) -> bool:
+def event_session_terminated(event: Event, db: Session | None = None) -> bool:
+    from app.services.rdg_workstation_session import (
+        event_closed_by_rdg,
+        resolve_workstation_login_closed,
+    )
+
     details = _details_dict(event)
     if details.get("session_terminated") is True:
         return True
     at = details.get(SESSION_TERMINATED_AT_KEY)
-    return at is not None and str(at).strip() != ""
+    if at is not None and str(at).strip() != "":
+        return True
+    if event_closed_by_rdg(event):
+        return True
+    if db is not None and event.type == "rdp.login.success":
+        return resolve_workstation_login_closed(db, event)
+    return False
 
 
 def mark_event_session_terminated(event: Event, *, by_username: str | None = None) -> None: