```ruby
require 'redis'
require 'sinatra'
require 'sinatra/reloader'

get '/' do
  redirect '/overview'
end

get '/overview' do
  erb :index
end

get '/details' do
  erb :details
end

get '/queues' do
  erb :queues
end

get '/workers' do
  erb :workers
end

get '/failed' do
  erb :failed
end

get '/scheduled' do
  erb :scheduled
end

get '/redis-data' do
  redis = Redis.new

  (1..redis.mget('data')[0].to_i).to_a.sample.to_s
end
```

Add routes for ajax and remove unneeded routes.
user
```ruby
$LOAD_PATH.unshift(File.dirname('lib/workerholic.rb'))
require 'redis'
require 'sinatra'
require 'sinatra/reloader'
require 'json'
require_relative '../lib/workerholic'

get '/' do
  redirect '/overview'
end

get '/overview' do
  erb :index
end

get '/details' do
  completed_jobs = Workerholic::StatsAPI.job_statistics( {category: 'completed_jobs', count_only: true} )
  failed_jobs = Workerholic::StatsAPI.job_statistics( {category: 'failed_jobs', count_only: true} )

  @job_stats = {}
  @completed_total = 0
  @failed_total = 0

  completed_jobs.each do |job|
    @job_stats[job[0]] = { completed: job[1] }
    @completed_total += job[1]
  end

  failed_jobs.each do |job|
    @job_stats[job[0]].merge( { failed: job[1] })
    @failed_total += job[1]
  end

  erb :details
end

get '/queues' do
  @queues = Workerholic::StatsAPI.queued_jobs
  @total = 0
  @queues.each do |queue|
    @total += queue[1]
  end

  erb :queues
end

# get '/workers' do
#   erb :workers
# end
#
# get '/failed' do
#   erb :failed
# end
#
# get '/scheduled' do
#   erb :scheduled
# end

get '/overview-data' do
  JSON.generate({
    completed_jobs: Workerholic::StatsAPI.job_statistics( {category: 'completed_jobs', count_only: true} ),
    failed_jobs: Workerholic::StatsAPI.job_statistics( {category: 'failed_jobs', count_only: true} ),
    queued_jobs: Workerholic::StatsAPI.queued_jobs,
    workers_count: Workerholic.workers_count
  })
end

get '/detail-data' do
  JSON.generate({
    completed_jobs: Workerholic::StatsAPI.job_statistics( {category: 'completed_jobs', count_only: true} ),
    failed_jobs: Workerholic::StatsAPI.job_statistics( {category: 'failed_jobs', count_only: true} )
  })
end

get '/queue-data' do
  JSON.generate({
    queued_jobs: Workerholic::StatsAPI.queued_jobs
  })
end
```
assistant