Scope Gemfile.local gem to development group only

[Copilot]

The README installation snippets were missing a group scope, meaning the plugin would be loaded in all environments including production.

Both Gemfile.local variants (git and local path) are now wrapped in group :development:

group :development do
  gem "openproject-dev_tools", path: "/path/to/openproject-dev_tools"
end

Original prompt

Initialize the repository with a the basic infrastructure (most importantly engine.rb) for an OpenProject plugin, as well as a README explaining how to add the plugin to OpenProject via a Gemfile.local file. You can take https://github.com/opf/openproject-proto_plugin as inspiration.

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