```ruby
require "aozorasearch/version"
require "aozorasearch/groonga_database"
require "aozorasearch/groonga_searcher"
require "aozorasearch/loader"
require "aozorasearch/book"

module Aozorasearch
end
```

Add missing require for web/app.rb
user
```ruby
require "aozorasearch/version"
require "aozorasearch/groonga_database"
require "aozorasearch/groonga_searcher"
require "aozorasearch/loader"
require "aozorasearch/book"
require "aozorasearch/command"

module Aozorasearch
end
```
assistant