feat(API): Ingest plain text (#1417)

* Add ingest/text route to ingest plain text

* Add new ingest text test and adapt ingest/file ones

* Include new API in docs

* Remove duplicated logic

tests/server/ingest/test_ingest_routes.py

@@ -3,6 +3,7 @@ from pathlib import Path
 
 from fastapi.testclient import TestClient
 
+from private_gpt.server.ingest.ingest_router import IngestResponse
 from tests.fixtures.ingest_helper import IngestHelper
 
 
@@ -34,3 +35,12 @@ def test_ingest_list_returns_something_after_ingestion(
     assert (
         count_ingest_after == count_ingest_before + 1
     ), "The temp doc should be returned"
+
+
+def test_ingest_plain_text(test_client: TestClient) -> None:
+    response = test_client.post(
+        "/v1/ingest/text", json={"file_name": "file_name", "text": "text"}
+    )
+    assert response.status_code == 200
+    ingest_result = IngestResponse.model_validate(response.json())
+    assert len(ingest_result.data) == 1