feat: Platform API improvements (#2900)

- Platform APIs to add and update custom attributes to users
- Platform APIs to delete accounts
- Platform APIs to delete users

spec/jobs/delete_object_job_spec.rb

@@ -0,0 +1,20 @@
+require 'rails_helper'
+
+RSpec.describe DeleteObjectJob, type: :job do
+  subject(:job) { described_class.perform_later(account) }
+
+  let(:account) { create(:account) }
+
+  it 'enqueues the job' do
+    expect { job }.to have_enqueued_job(described_class)
+      .with(account)
+      .on_queue('default')
+  end
+
+  context 'when an object is passed to the job' do
+    it 'is deleted' do
+      described_class.perform_now(account)
+      expect { account.reload }.to raise_error(ActiveRecord::RecordNotFound)
+    end
+  end
+end