feat: host display_name в ingest, поиск хостов, UI и docs

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

backend/tests/test_ingest.py

@@ -70,6 +70,36 @@ def test_ingest_rdp_lifecycle_201(client, auth_headers):
     assert r.json()["event_id"] == event_id
 
 
+def test_ingest_host_display_name_updated(client, auth_headers, db_session):
+    from sqlalchemy import select
+
+    from app.models import Host
+
+    event_id = str(uuid.uuid4())
+    payload = {
+        **VALID_EVENT,
+        "event_id": event_id,
+        "host": {
+            "hostname": "short-name",
+            "display_name": "UNMS Kalina",
+            "os_family": "linux",
+        },
+    }
+    assert client.post("/api/v1/events", json=payload, headers=auth_headers).status_code == 201
+    host = db_session.scalar(select(Host).where(Host.hostname == "short-name"))
+    assert host is not None
+    assert host.display_name == "UNMS Kalina"
+
+    payload2 = {
+        **payload,
+        "event_id": str(uuid.uuid4()),
+        "host": {"hostname": "short-name", "display_name": "Kalina UNMS", "os_family": "linux"},
+    }
+    assert client.post("/api/v1/events", json=payload2, headers=auth_headers).status_code == 201
+    db_session.refresh(host)
+    assert host.display_name == "Kalina UNMS"
+
+
 def test_ingest_invalid_payload_422(client, auth_headers):
     r = client.post(
         "/api/v1/events",