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/tiktok/token_service_spec.rb

@@ -0,0 +1,57 @@
+require 'rails_helper'
+
+RSpec.describe Tiktok::TokenService do
+  let(:channel) do
+    create(
+      :channel_tiktok,
+      access_token: 'old-access-token',
+      refresh_token: 'old-refresh-token',
+      expires_at: 1.minute.ago,
+      refresh_token_expires_at: 1.day.from_now
+    )
+  end
+
+  describe '#access_token' do
+    it 'returns current token when it is still valid' do
+      channel.update!(expires_at: 10.minutes.from_now)
+      allow(Tiktok::AuthClient).to receive(:renew_short_term_access_token)
+
+      token = described_class.new(channel: channel).access_token
+
+      expect(token).to eq('old-access-token')
+      expect(Tiktok::AuthClient).not_to have_received(:renew_short_term_access_token)
+    end
+
+    it 'refreshes access token when expired and refresh token is valid' do
+      lock_manager = instance_double(Redis::LockManager, lock: true, unlock: true)
+      allow(Redis::LockManager).to receive(:new).and_return(lock_manager)
+
+      allow(Tiktok::AuthClient).to receive(:renew_short_term_access_token).and_return(
+        {
+          access_token: 'new-access-token',
+          refresh_token: 'new-refresh-token',
+          expires_at: 1.day.from_now,
+          refresh_token_expires_at: 30.days.from_now
+        }.with_indifferent_access
+      )
+
+      token = described_class.new(channel: channel).access_token
+
+      expect(token).to eq('new-access-token')
+      expect(channel.reload.access_token).to eq('new-access-token')
+      expect(channel.refresh_token).to eq('new-refresh-token')
+    end
+
+    it 'prompts reauthorization when both access and refresh tokens are expired' do
+      channel.update!(expires_at: 1.day.ago, refresh_token_expires_at: 1.minute.ago)
+
+      allow(channel).to receive(:reauthorization_required?).and_return(false)
+      allow(channel).to receive(:prompt_reauthorization!)
+
+      token = described_class.new(channel: channel).access_token
+
+      expect(token).to eq('old-access-token')
+      expect(channel).to have_received(:prompt_reauthorization!)
+    end
+  end
+end