Restructuring calculator data in database and improve api surface

apps/api/src/database/migrations/2026-06-03.ts

@@ -39,7 +39,6 @@ export async function up(db: Kysely<any>): Promise<void> {
         .$call(addDefaultColumns)
         .addColumn("name", "text", (cb) => cb.notNull().defaultTo(""))
         .addColumn("params", "jsonb", (cb) => cb.notNull())
-        .addColumn("is_selected", "boolean", (cb) => cb.notNull().defaultTo(false))
         .addColumn("dataset_id", "bigint", (cb) => cb.notNull())
         .addForeignKeyConstraint(
             "fk_standards_configs_dataset_id",
@@ -50,12 +49,18 @@ export async function up(db: Kysely<any>): Promise<void> {
         )
         .execute();
 
-    // INDEX: ONE_SELECTED_STANDARDS_CONFIG
-    await db.schema.createIndex("idx_one_selected_standards_config")
-        .on("standards_configs")
-        .column("is_selected")
-        .unique()
-        .where("is_selected", "=", true)
+    // TABLE: CALCULATORS
+    await db.schema.createTable("calculators")
+        .$call(addDefaultColumns)
+        .addColumn("name", "text", (cb) => cb.notNull().unique())
+        .addColumn("standards_config_id", "bigint", (cb) => cb.notNull())
+        .addForeignKeyConstraint(
+            "fk_calculators_standards_config_id",
+            ["standards_config_id"],
+            "standards_configs",
+            ["id"],
+            (cb) => cb.onDelete("restrict")
+        )
         .execute();
 }
 
@@ -66,8 +71,8 @@ export async function down(db: Kysely<any>): Promise<void> {
     // INDEX: ONE_ACTIVE_PRODUCT_SYNC
     await db.schema.dropIndex("idx_one_active_product_sync").ifExists().execute();
 
-    // INDEX: ONE_SELECTED_STANDARDS_CONFIG
-    await db.schema.dropIndex("idx_one_selected_standards_config").ifExists().execute();
+    // TABLE: CALCULATORS
+    await db.schema.dropTable("calculators").ifExists().execute()
 
     // TABLE: STANDARDS_CONFIGS
     await db.schema.dropTable("standards_configs").ifExists().execute()