Add Rails 7 app

spec/rails7/Gemfile

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+source 'https://rubygems.org'
+
+gem 'rails', '~> 7.0.2'
+gem 'devise'
+gem 'pry-rails'
+gem 'sqlite3'
+
+group :development do
+  gem 'solargraph'
+end

spec/rails7/Rakefile

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+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require_relative 'config/application'
+
+Rails.application.load_tasks

spec/rails7/app/controllers/application_controller.rb

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+class ApplicationController < ActionController::Base
+end

spec/rails7/config.ru

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+# This file is used by Rack-based servers to start the application.
+
+require_relative 'config/environment'
+
+run Rails.application

spec/rails7/config/application.rb

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+require_relative 'boot'
+require 'rails/all'
+
+Bundler.require(*Rails.groups)
+
+module MyApp
+  class Application < Rails::Application
+    ##
+  end
+end

spec/rails7/config/boot.rb

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+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
+
+require 'bundler/setup' # Set up gems listed in the Gemfile.

spec/rails7/config/database.yml

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+development:
+  adapter: sqlite3
+  pool: 5
+  database: db/dev.sqlite3

spec/rails7/config/environment.rb

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+# Load the Rails application.
+require_relative 'application'
+
+Rails.application.configure do
+  config.eager_load = true
+  config.active_storage.service = :local
+end
+
+# Initialize the Rails application.
+Rails.application.initialize!

spec/rails7/config/storage.yml

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+local:
+  service: Disk
+  root: <%= Rails.root.join("storage") %>