add mount_lookbook configuration option

config/routes.rb

@@ -38,6 +38,8 @@
       get "/appearance", to: "private#appearance"
     end
 
-    mount Lookbook::Engine, at: "/lookbook" if defined?(Lookbook)
+    if Avo.configuration.mount_lookbook
+      mount Lookbook::Engine, at: "/lookbook" if defined?(Lookbook)
+    end
   end
 end

lib/avo/configuration.rb

@@ -64,6 +64,7 @@ class Configuration
     attr_writer :body_classes
     attr_accessor :sidebar_toggle_visible
     attr_accessor :tailwindcss_integration_enabled
+    attr_accessor :mount_lookbook
 
     unless defined?(CONTAINER_WIDTH_DEFAULTS)
       CONTAINER_WIDTH_DEFAULTS = {
@@ -201,6 +202,7 @@ def initialize
       @sidebar_toggle_visible = true
       @body_classes = []
       @tailwindcss_integration_enabled = true
+      @mount_lookbook = false
     end
 
     unless defined?(RESOURCE_ROW_CONTROLS_CONFIG_DEFAULTS)

lib/avo/engine.rb

@@ -91,7 +91,9 @@ class Engine < ::Rails::Engine
       # Add the mount_avo method to Rails
       # rubocop:disable Style/ArgumentsForwarding
       ActionDispatch::Routing::Mapper.include(Module.new {
-        def mount_avo(at: Avo.configuration.root_path, **options, &block)
+        def mount_avo(at: Avo.configuration.root_path, mount_lookbook: false, **options, &block)
+          Avo.configuration.mount_lookbook = mount_lookbook
+
           mount Avo::Engine, at:, **options
 
           scope at do

spec/components/avo/index/table_row_component_spec.rb

@@ -1,7 +1,7 @@
 require "rails_helper"
 
 # Component-layer integration coverage. The full merge contract is exercised
-# in `spec/lib/avo/table_row_options_spec.rb`; this file covers the parts that
+# in `spec/features/avo/lib/table_row_options_spec.rb`; this file covers the parts that
 # only the component owns: `view` derivation and the wiring of the merger
 # call.
 RSpec.describe Avo::Index::TableRowComponent, type: :component do

spec/dummy/config/routes.rb

@@ -10,7 +10,7 @@
   resources :posts
 
   authenticate :user, ->(user) { user.is_admin? } do
-    mount_avo do
+    mount_avo mount_lookbook: true do
       scope :resources do
         get "courses/cities", to: "courses#cities"
         get "users/get_users", to: "users#get_users"

spec/features/avo/lib/mount_avo_spec.rb

@@ -0,0 +1,42 @@
+require "rails_helper"
+
+RSpec.describe "mount_avo" do
+  around do |example|
+    original = Avo.configuration.mount_lookbook
+    example.run
+  ensure
+    Avo.configuration.mount_lookbook = original
+  end
+
+  def draw_mount_avo(**options)
+    routes = ActionDispatch::Routing::RouteSet.new
+    routes.draw { mount_avo(**options) }
+    routes
+  end
+
+  it "defaults mount_lookbook to false" do
+    draw_mount_avo
+
+    expect(Avo.configuration.mount_lookbook).to be false
+  end
+
+  it "sets mount_lookbook when mount_lookbook: true is passed" do
+    draw_mount_avo mount_lookbook: true
+
+    expect(Avo.configuration.mount_lookbook).to be true
+  end
+
+  it "sets mount_lookbook to false when mount_lookbook: false is passed" do
+    Avo.configuration.mount_lookbook = true
+
+    draw_mount_avo mount_lookbook: false
+
+    expect(Avo.configuration.mount_lookbook).to be false
+  end
+end
+
+RSpec.describe Avo::Configuration, "#mount_lookbook" do
+  it "defaults to false" do
+    expect(described_class.new.mount_lookbook).to be false
+  end
+end