fix: Seaca push uses same lifecycle text as Telegram (0.9.11)

Reuse telegram templates for FCM title/body so agent start/restart
reasons reach mobile without Seaca app changes.

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

backend/tests/test_telegram_templates.py

@@ -3,7 +3,13 @@
 from datetime import datetime, timezone
 
 from app.models import Event, Host
-from app.services.telegram_templates import format_event_telegram_html, format_rdp_login_html, html_escape
+from app.services.telegram_templates import (
+    format_event_mobile_push,
+    format_event_telegram_html,
+    format_rdp_login_html,
+    html_escape,
+    telegram_html_to_plaintext,
+)
 
 
 def test_html_escape_special_chars():
@@ -145,6 +151,61 @@ def test_event_telegram_includes_sac_source_for_sac_daily_report():
     assert "📡 Оповещение: SAC (Security Alert Center)" in text
 
 
+def test_telegram_html_to_plaintext_strips_tags():
+    assert telegram_html_to_plaintext("<b>✅ Агент запущен</b>\n🏢 Хост: WIN01") == (
+        "✅ Агент запущен\n🏢 Хост: WIN01"
+    )
+
+
+def test_format_event_mobile_push_lifecycle_includes_trigger():
+    host = Host(hostname="WIN01", display_name="K6A-DC3", os_family="windows")
+    event = Event(
+        event_id="00000000-0000-4000-8000-000000000509",
+        host_id=1,
+        host=host,
+        occurred_at=datetime(2026, 5, 29, 9, 0, tzinfo=timezone.utc),
+        category="agent",
+        type="agent.lifecycle",
+        severity="info",
+        title="started",
+        summary="Мониторинг запущен",
+        details={"lifecycle": "started", "trigger": "deploy_recycle", "telegram_via": "sac"},
+        payload={"source": {"product": "rdp-login-monitor", "product_version": "1.2.30-SAC"}},
+    )
+    title, body = format_event_mobile_push(event)
+    assert title == "✅ Агент запущен"
+    assert "K6A-DC3" in body
+    assert "1.2.30-SAC" in body
+    assert "обновление скрипта" in body
+    assert "📡 Оповещение: SAC" in body
+
+
+def test_format_event_mobile_push_uses_notification_body():
+    host = Host(hostname="WIN01", display_name="K6A-DC3", os_family="windows")
+    body_text = "✅ Мониторинг логинов ЗАПУЩЕН\n🖥️ Сервер: K6A-DC3 (10.0.0.1)"
+    event = Event(
+        event_id="00000000-0000-4000-8000-000000000510",
+        host_id=1,
+        host=host,
+        occurred_at=datetime(2026, 5, 29, 9, 0, tzinfo=timezone.utc),
+        category="agent",
+        type="agent.lifecycle",
+        severity="info",
+        title="started",
+        summary="Мониторинг запущен",
+        details={
+            "lifecycle": "started",
+            "trigger": "boot",
+            "notification_body": body_text,
+            "telegram_via": "sac",
+        },
+        payload={"source": {"product": "rdp-login-monitor", "product_version": "1.2.31-SAC"}},
+    )
+    title, body = format_event_mobile_push(event)
+    assert title == "✅ Мониторинг логинов ЗАПУЩЕН"
+    assert "K6A-DC3 (10.0.0.1)" in body
+
+
 def test_lifecycle_started_template():
     host = Host(hostname="WIN01", display_name="K6A-DC3", os_family="windows")
     event = Event(