Hotfix: Detect running rails server and explain proper steps

Procfile.dev

@@ -1,3 +1,3 @@
-web: env RUBY_DEBUG_OPEN=true bin/rails server -p ${PORT:-3000}
+web: env RUBY_DEBUG_OPEN=true USING_PROCFILE=true bin/rails server -p ${PORT:-3000}
 worker: bin/rake solid_queue:start
-tailwind: bin/rails tailwindcss:watch
+tailwind: bin/rails tailwindcss:watch

config/initializers/warn_on_rails_server.rb

@@ -0,0 +1,15 @@
+if defined?(Rails::Server)
+  if ENV['RAILS_ENV'] == 'development' && ENV['USING_PROCFILE'] != 'true'
+    puts ""
+    puts "###"
+    puts "### WARNING: You are running 'rails server' outside of the Procfile.  This misses the SolidQueue and Tailwind."
+    puts "###"
+    puts "### Cancel this with Ctrl + c and instead run 'bin/dev'"
+    puts "###"
+    puts "### Full setup instructions are here: https://github.com/allyourbot/hostedgpt#contribute-as-a-developer"
+    puts "### (Or, press Enter to proceed anyway)"
+    puts "###"
+    gets
+  end
+end
+