Add entity address/contact tables and CRUD for entity resources

src/store/customergroup/resolveCustomerGroupAccess.js

@@ -0,0 +1,22 @@
+import { GET_BY_COMPANY_AND_ID } from '../../sql/customergroup.js';
+import request from '../request.js';
+
+/** Ensure customergroup belongs to company. Throws Customer group not found. */
+export default function resolveCustomerGroupAccess(pool) {
+  return async (companyId, customergroupId, tx) => {
+    if (!Number.isFinite(customergroupId)) {
+      throw new Error('Customer group not found');
+    }
+
+    const result = await request(pool, tx)
+      .input('id', customergroupId)
+      .input('companyId', companyId)
+      .query(GET_BY_COMPANY_AND_ID);
+
+    const row = result.recordset[0];
+    if (!row) {
+      throw new Error('Customer group not found');
+    }
+    return row;
+  };
+}