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>

app/services/auto_assignment/assignment_service.rb

@@ -0,0 +1,90 @@
+class AutoAssignment::AssignmentService
+  pattr_initialize [:inbox!]
+
+  def perform_bulk_assignment(limit: 100)
+    return 0 unless inbox.auto_assignment_v2_enabled?
+
+    assigned_count = 0
+
+    unassigned_conversations(limit).each do |conversation|
+      assigned_count += 1 if perform_for_conversation(conversation)
+    end
+
+    assigned_count
+  end
+
+  private
+
+  def perform_for_conversation(conversation)
+    return false unless assignable?(conversation)
+
+    agent = find_available_agent
+    return false unless agent
+
+    assign_conversation(conversation, agent)
+  end
+
+  def assignable?(conversation)
+    conversation.status == 'open' &&
+      conversation.assignee_id.nil?
+  end
+
+  def unassigned_conversations(limit)
+    scope = inbox.conversations.unassigned.open
+
+    scope = if assignment_config['conversation_priority'].to_s == 'longest_waiting'
+              scope.reorder(last_activity_at: :asc, created_at: :asc)
+            else
+              scope.reorder(created_at: :asc)
+            end
+
+    scope.limit(limit)
+  end
+
+  def find_available_agent
+    agents = filter_agents_by_rate_limit(inbox.available_agents)
+    return nil if agents.empty?
+
+    round_robin_selector.select_agent(agents)
+  end
+
+  def filter_agents_by_rate_limit(agents)
+    agents.select do |agent_member|
+      rate_limiter = build_rate_limiter(agent_member.user)
+      rate_limiter.within_limit?
+    end
+  end
+
+  def assign_conversation(conversation, agent)
+    conversation.update!(assignee: agent)
+
+    rate_limiter = build_rate_limiter(agent)
+    rate_limiter.track_assignment(conversation)
+
+    dispatch_assignment_event(conversation, agent)
+    true
+  end
+
+  def dispatch_assignment_event(conversation, agent)
+    Rails.configuration.dispatcher.dispatch(
+      Events::Types::ASSIGNEE_CHANGED,
+      Time.zone.now,
+      conversation: conversation,
+      user: agent
+    )
+  end
+
+  def build_rate_limiter(agent)
+    AutoAssignment::RateLimiter.new(inbox: inbox, agent: agent)
+  end
+
+  def round_robin_selector
+    @round_robin_selector ||= AutoAssignment::RoundRobinSelector.new(inbox: inbox)
+  end
+
+  def assignment_config
+    @assignment_config ||= inbox.auto_assignment_config || {}
+  end
+end
+
+AutoAssignment::AssignmentService.prepend_mod_with('AutoAssignment::AssignmentService')