feat(api): ensure StackRunConfig

StackRunConfig is part of our public API, ensure stability of this datatype using a pytest snapshot test.

If the pydantic model changes, it will fail.

Signed-off-by: Charlie Doern <cdoern@redhat.com>

scripts/api-conformance.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+set -euo pipefail
+
+# Simple test runner for API conformance tests
+# Runs pytest with snapshot testing for Pydantic models
+
+# Get the script directory
+THIS_DIR=$(dirname "$0")
+ROOT_DIR="$THIS_DIR/.."
+
+cd "$ROOT_DIR"
+
+# Run pytest with snapshot testing
+echo "=== Running API Conformance Tests ==="
+pytest -s -v tests/ \
+    --snapshot-update \
+    "$@"
+
+echo "✅ API Conformance Tests Complete"

scripts/pydantic-diff.py

@@ -0,0 +1,14 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from llama_stack.core.datatypes import StackRunConfig
+
+
+def test_build_config_v1_schema_is_unchanged(snapshot):
+    """
+    Ensures the V1 schema never changes.
+    """
+    snapshot.assert_match(StackRunConfig.model_json_schema(), "stored_build_config_v1_schema.json")