Support modern Qdrant search API

tests/test_search.py

@@ -178,6 +178,40 @@ class TestSearchDocs:
                 assert "title" in result
                 assert "chunk_index" in result
 
+    def test_uses_modern_qdrant_query_points_api(self):
+        """New qdrant-client versions expose query_points instead of search."""
+        from unittest.mock import patch
+        from backend.app.search import search_docs
+
+        point = type("ScoredPoint", (), {
+            "score": 0.91,
+            "payload": {
+                "id": "modern-result",
+                "library_id": "documentation",
+                "path": "docs/index.md",
+                "title": "Index",
+                "chunk_index": 0,
+            },
+        })()
+
+        class Response:
+            points = [point]
+
+        class ModernClient:
+            def query_points(self, **kwargs):
+                assert kwargs["query"] == [0.1, 0.2]
+                assert kwargs["limit"] == 3
+                return Response()
+
+        with (
+            patch("backend.app.search.embed_text", return_value=[0.1, 0.2]),
+            patch("backend.app.search.get_client", return_value=ModernClient()),
+        ):
+            results = search_docs("world generation", limit=3)
+
+        assert len(results) == 1
+        assert results[0]["id"] == "modern-result"
+
 
 class TestGetLibraryDocs:
     """Tests for get_library_docs() - document retrieval."""