Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/javascript/shared/helpers/specs/CustomErrors.spec.js

@@ -0,0 +1,13 @@
+import { DuplicateContactException } from '../CustomErrors';
+
+describe('DuplicateContactException', () => {
+  it('returns correct exception', () => {
+    const exception = new DuplicateContactException({
+      attributes: ['email'],
+    });
+    expect(exception.message).toEqual('DUPLICATE_CONTACT');
+    expect(exception.data).toEqual({
+      attributes: ['email'],
+    });
+  });
+});