fix: suppress legacy warnings in machine JSON paths

harness/tests/test_qdrant_cli_commands.py

@@ -61,6 +61,18 @@ embeddings:
     return cfg
 
 
+def _legacy_qdrant_runtime_config(tmp_path: Path) -> Path:
+    cfg = _qdrant_runtime_config(tmp_path)
+    text = cfg.read_text()
+    text = text.replace(
+        "dwh:\n  type: postgres_direct\n  connection: {database: analytics, schema: mart, user: reader, password: secret}\n",
+        "database: {database: analytics, schema: mart, user: reader, password: secret}\n",
+    )
+    text = text.replace("roots:\n", "paths:\n")
+    cfg.write_text(text)
+    return cfg
+
+
 def _write_schema_artifacts(tmp_path: Path) -> None:
     (tmp_path / "artifacts" / "mschema").mkdir(parents=True, exist_ok=True)
     (tmp_path / "artifacts" / "mschema" / "physical.yaml").write_text(
@@ -252,3 +264,33 @@ def test_vector_index_schema_human_missing_config_has_original_error(tmp_path):
     assert response.exit_code == 1
     assert response.output
     assert "ERRORE:" in response.output
+
+
+def test_vector_index_schema_json_legacy_config_has_no_stderr_on_success(monkeypatch, tmp_path):
+    cfg = _legacy_qdrant_runtime_config(tmp_path)
+    _write_schema_artifacts(tmp_path)
+    store = _FakeVectorStore()
+    monkeypatch.setattr("tht.adapters.factory.build_vector_store", lambda cfg, require_write: store)
+    monkeypatch.setattr("tht.cli.vector_cmd.make_embedder", lambda _: _FakeEmbedder())
+
+    response = CliRunner().invoke(app, ["vector", "index-schema", "--json", "-c", str(cfg)])
+
+    assert response.exit_code == 0, response.output
+    assert response.stderr == ""
+    assert response.stdout.count("\n") == 1
+    assert json.loads(response.stdout)["status"] == "succeeded"
+
+
+def test_vector_index_schema_json_legacy_config_has_no_stderr_on_failure(tmp_path):
+    cfg = _legacy_qdrant_runtime_config(tmp_path)
+    _write_schema_artifacts(tmp_path)
+    (tmp_path / "artifacts" / "mschema" / "physical.yaml").unlink()
+
+    response = CliRunner().invoke(app, ["vector", "index-schema", "--json", "-c", str(cfg)])
+
+    assert response.exit_code == 1
+    assert response.stderr == ""
+    assert response.stdout.count("\n") == 1
+    assert json.loads(response.stdout) == {
+        "status": "failed", "code": "physical_schema_missing"
+    }