fix: dedupe daily report Telegram in dual mode and show host in summary fallback

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

backend/app/services/notify_dispatch.py

@@ -75,11 +75,14 @@ def _dispatch_lifecycle_channels(event: Event, *, db: Session | None, policy) ->
 
 
 def notify_daily_report(event: Event, *, db: Session | None = None) -> None:
-    """Оповещение по суточному отчёту (severity=info, вне порога policy)."""
+    """Оповещение по суточному отчёту (severity=info, вне порога policy).
+
+    При UseSAC=dual агент шлёт TG сам (telegram_via=agent) — SAC не дублирует.
+    """
     policy = get_effective_notification_policy(db)
     if not should_notify_event(event, db):
         return
-    _dispatch_event_channels(event, db=db, policy=policy)
+    _dispatch_lifecycle_channels(event, db=db, policy=policy)
 
 
 def notify_lifecycle(event: Event, *, db: Session | None = None) -> None:

backend/app/services/telegram_templates.py

@@ -405,7 +405,15 @@ def _format_event_body_html(event: Event) -> str:
             return re.sub(r"\n{3,}", "\n\n", text)
         body = _detail(details, "report_body", default=event.summary)
         if body != "-":
-            return html.escape(body)
+            header = (
+                "📊 ЕЖЕДНЕВНЫЙ ОТЧЕТ МОНИТОРИНГА WINDOWS"
+                if event.type == "report.daily.rdp"
+                else "📊 ЕЖЕДНЕВНЫЙ ОТЧЕТ SSH МОНИТОРИНГА"
+            )
+            msg = f"<b>{html.escape(header)}</b>\n"
+            msg += _line("🏢", "Сервер", host_label(event.host))
+            msg += f"\n{html.escape(body)}"
+            return msg
         return format_generic_event_html(event)
     if event.type in ("rdp.login.success", "rdp.login.failed"):
         return format_rdp_login_html(event)