adds explicit permission to admin to read budgets

app/controllers/admin/budgets_controller.rb

@@ -2,6 +2,8 @@ class Admin::BudgetsController < Admin::BaseController
 
   has_filters %w{open finished}, only: :index
 
+  load_and_authorize_resource
+
   def index
     @budgets = Budget.send(@current_filter).order(created_at: :desc).page(params[:page])
   end

app/models/abilities/administrator.rb

@@ -42,7 +42,7 @@ module Abilities
 
       can [:read, :update, :valuate, :destroy, :summary], SpendingProposal
 
-      can [:create, :update], Budget
+      can [:read, :create, :update], Budget
       can [:hide, :update], Budget::Investment
       can :valuate, Budget::Investment, budget: { valuating: true }
       can :create, Budget::ValuatorAssignment