Fixes the legacy milestone API in the dashboard to include `acceptanceCriteria` in milestone types, ensuring consistent data shape when milestone data is served through the legacy API endpoint. Fusion-Task-Id: FN-4589
Fixes the legacy milestone API in the dashboard to include `acceptanceCriteria` in milestone types, ensuring consistent data shape when milestone data is served through the legacy API endpoint. Fusion-Task-Id: FN-4589