Initial commit: Add logistics and order_detail message types

- Add Logistics component with progress tracking
- Add OrderDetail component for order information
- Support data-driven steps and actions
- Add blue color scale to widget SCSS
- Fix node overflow and progress bar rendering issues
- Add English translations for dashboard components

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

spec/services/contacts/bulk_assign_labels_service_spec.rb

@@ -0,0 +1,48 @@
+require 'rails_helper'
+
+RSpec.describe Contacts::BulkAssignLabelsService do
+  subject(:service) do
+    described_class.new(
+      account: account,
+      contact_ids: [contact_one.id, contact_two.id, other_contact.id],
+      labels: labels
+    )
+  end
+
+  let(:account) { create(:account) }
+  let!(:contact_one) { create(:contact, account: account) }
+  let!(:contact_two) { create(:contact, account: account) }
+  let!(:other_contact) { create(:contact) }
+  let(:labels) { %w[vip support] }
+
+  it 'assigns labels to the contacts that belong to the account' do
+    service.perform
+
+    expect(contact_one.reload.label_list).to include(*labels)
+    expect(contact_two.reload.label_list).to include(*labels)
+  end
+
+  it 'does not assign labels to contacts outside the account' do
+    service.perform
+
+    expect(other_contact.reload.label_list).to be_empty
+  end
+
+  it 'returns ids of contacts that were updated' do
+    result = service.perform
+
+    expect(result[:success]).to be(true)
+    expect(result[:updated_contact_ids]).to contain_exactly(contact_one.id, contact_two.id)
+  end
+
+  it 'returns success with no updates when labels are blank' do
+    result = described_class.new(
+      account: account,
+      contact_ids: [contact_one.id],
+      labels: []
+    ).perform
+
+    expect(result).to eq(success: true, updated_contact_ids: [])
+    expect(contact_one.reload.label_list).to be_empty
+  end
+end