update

backend/tests/test_sync.py

@@ -90,3 +90,18 @@ def test_seit_cursor_liefert_nur_neues(client):
     sync(client, events=[{"id": "e2", "updated": "2026-09-19T10:00:00.000Z", "title": "b"}])
     r = sync(client, since=1)
     assert [e["id"] for e in r["events"]] == ["e2"]
+
+
+def test_dateien_nur_auf_anfrage(client):
+    sync(client, files=[{"id": "-home-x/s1.jsonl", "updated": "2026-09-22T10:00:00.000Z", "content": "zeile"}])
+    # Handy und Extension fragen ohne files: nichts davon in der Antwort
+    r = sync(client, events=[], todos=[], notes=[], folders=[])
+    assert "files" not in r and r["events"] == []
+    assert "files" not in sync(client)
+    # Nur Dateien angefragt: nur Dateien zurück, Stand zählt trotzdem
+    r = sync(client, files=[])
+    assert [f["id"] for f in r["files"]] == ["-home-x/s1.jsonl"] and "events" not in r
+    assert r["cursor"] == 1
+    # Tombstone gewinnt mit neuerem updated
+    r = sync(client, files=[{"id": "-home-x/s1.jsonl", "updated": "2026-09-22T11:00:00.000Z", "deleted": True}])
+    assert r["files"][-1]["deleted"] is True