fix: close task3 qdrant and config quality gaps

harness/tests/qdrant_test_helpers.py

@@ -80,6 +80,8 @@ class FakeQdrantHttp:
             return FakeResponse(200, {"result": {"status": "acknowledged"}})
 
         if method == "POST" and path == "/collections/workspace-semantic/points/query":
+            if self.collection is None:
+                return FakeResponse(404, {"status": "error"})
             if self.malformed_query:
                 return FakeResponse(200, {"result": {"points": "nope"}})
             wanted = _match_points(self.points.values(), json["filter"])
@@ -97,6 +99,8 @@ class FakeQdrantHttp:
             return FakeResponse(200, {"result": {"points": scored[: json["limit"]]}})
 
         if method == "POST" and path == "/collections/workspace-semantic/points/scroll":
+            if self.collection is None:
+                return FakeResponse(404, {"status": "error"})
             if self.malformed_scroll:
                 return FakeResponse(200, {"result": {"points": "bad"}})
             if self.scroll_pages is not None:
@@ -118,6 +122,8 @@ class FakeQdrantHttp:
             return FakeResponse(200, {"result": {"points": wanted, "next_page_offset": None}})
 
         if method == "POST" and path == "/collections/workspace-semantic/points/delete":
+            if self.collection is None:
+                return FakeResponse(404, {"status": "error"})
             doomed = [point["id"] for point in _match_points(self.points.values(), json["filter"])]
             for point_id_value in doomed:
                 self.points.pop(point_id_value, None)
@@ -159,5 +165,3 @@ def _write_record(record_id: str, kind: str, *, metadata=None):
         embedding=[0.1] * 1024,
         content_hash="sha256:" + "a" * 64,
     )
-
-