fix: hide redundant RDP workstation line when it matches server host

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

backend/app/services/telegram_templates.py

@@ -82,6 +82,31 @@ def host_label(host: Host | None, *, fallback: str = "unknown") -> str:
     return html_escape(host.hostname)
 
 
+def _host_display_name_base(display_name: str | None) -> str:
+    if not display_name or not display_name.strip():
+        return ""
+    return display_name.strip().split("(", 1)[0].strip()
+
+
+def _rdp_workstation_is_redundant(workstation: str, host: Host | None) -> bool:
+    """Скрыть Workstation Name, если пусто/«-» или совпадает с hostname/display_name сервера."""
+    ws = (workstation or "").strip()
+    if not ws or ws in ("-", "N/A", "?"):
+        return True
+    if host is None:
+        return False
+    ws_key = ws.casefold()
+    if host.hostname and ws_key == host.hostname.strip().casefold():
+        return True
+    dn = (host.display_name or "").strip()
+    if dn and ws_key == dn.casefold():
+        return True
+    base = _host_display_name_base(host.display_name)
+    if base and ws_key == base.casefold():
+        return True
+    return False
+
+
 def format_time(dt: datetime | None) -> str:
     if dt is None:
         return "-"
@@ -175,14 +200,16 @@ def format_rdp_login_html(event: Event) -> str:
 
     user = html_escape(_detail(details, "user", "username"))
     ip = html_escape(_detail(details, "ip_address", "source_ip", "ip"))
-    workstation = html_escape(_detail(details, "workstation_name", "computer_name"))
+    workstation_raw = _detail(details, "workstation_name", "computer_name")
+    workstation = html_escape(workstation_raw)
     process = html_escape(_detail(details, "process_name", "process", default=""))
     logon = logon_type_label(details.get("logon_type"))
 
     msg = f"<b>{header}</b>\n"
     msg += _line("👤", "Пользователь", user)
     msg += _line("🏢", "Сервер", host_label(event.host))
-    msg += _line("🖥️", "Рабочая станция", workstation)
+    if not _rdp_workstation_is_redundant(workstation_raw, event.host):
+        msg += _line("🖥️", "Рабочая станция", workstation)
     msg += _line("🌐", "IP адрес", ip)
     if process and process != "-":
         msg += _line("⚙️", "Процесс", process)