implement /setup and /admin

config/routes.rb

@@ -12,6 +12,23 @@ Rails.application.routes.draw do
   # Defines the root path route ("/")
   root "entries#index"
 
+  # Setup route (only accessible when .installed file doesn't exist)
+  get "setup", to: "setup#show"
+  post "setup", to: "setup#create"
+
+  # Authentication routes (placeholder for future implementation)
+  # get "login", to: "sessions#new", as: :login
+  # post "login", to: "sessions#create"
+  # delete "logout", to: "sessions#destroy", as: :logout
+
+  # Admin namespace
+  namespace :admin do
+    root "dashboard#index"
+    get "dashboard", to: "dashboard#index"
+    resources :users, only: [ :index, :edit, :update, :destroy ]
+    resources :invitations, only: [ :index, :new, :create, :destroy ]
+  end
+
   resources :entries do
     collection do
       get :download