Add dataset_id to SQL SELECT statement

- Inserted `dataset.dataset_id` into the SELECT statement
- Ensures the dataset ID is retrieved along with other fields
- Enhances data completeness for downstream processes

src/main/java/edu/harvard/dbmi/avillach/dictionary/dashboard/DashboardRepository.java

@@ -52,6 +52,7 @@ public List<Map<String, String>> getHackyBDCRows() {
         String sql =
             """
                     SELECT
+                        dataset.dataset_id as dataset_id,
                         dataset.abbreviation AS abbreviation,
                         dataset.full_name AS name,
                         CASE