Resolve conflicts with Justin's PR #1769 before rebase

- lib/generators/react_on_rails/bin/dev: Use Justin's enhanced version with emojis and better Ruby practices
- spec/dummy/bin/dev: Keep full-featured Ruby template instead of simplified bash version
- spec/react_on_rails/binstubs/dev_spec.rb: Preserve comprehensive test coverage vs minimal testing

Author: ihabadham

spec/dummy/bin/dev

@@ -1,70 +1,72 @@
 #!/usr/bin/env ruby
 # frozen_string_literal: true
 
+require "English"
+
 def installed?(process)
   IO.popen "#{process} -v"
 rescue Errno::ENOENT
   false
 end
 
 def generate_packs
-  puts "Generating React on Rails packs..."
+  puts "📦 Generating React on Rails packs..."
   system "bundle exec rake react_on_rails:generate_packs"
-  
-  unless $?.success?
-    puts "Pack generation failed"
-    exit 1
-  end
+
+  return if $CHILD_STATUS.success?
+
+  puts "❌ Pack generation failed"
+  exit 1
 end
 
 def run_production_like
-  puts "Starting production-like development server..."
+  puts "🏭 Starting production-like development server..."
   puts "   - Generating React on Rails packs"
   puts "   - Precompiling assets with production optimizations"
   puts "   - Running Rails server on port 3001"
   puts "   - No HMR (Hot Module Replacement)"
   puts "   - CSS extracted to separate files (no FOUC)"
   puts ""
-  puts "Access at: http://localhost:3001"
+  puts "💡 Access at: http://localhost:3001"
   puts ""
-  
+
   # Generate React on Rails packs first
   generate_packs
-  
+
   # Precompile assets in production mode
-  puts "Precompiling assets..."
+  puts "🔨 Precompiling assets..."
   system "RAILS_ENV=production NODE_ENV=production bundle exec rails assets:precompile"
-  
-  if $?.success?
-    puts "Assets precompiled successfully"
-    puts "Starting Rails server in production mode..."
+
+  if $CHILD_STATUS.success?
+    puts "✅ Assets precompiled successfully"
+    puts "🚀 Starting Rails server in production mode..."
     puts ""
     puts "Press Ctrl+C to stop the server"
     puts "To clean up: rm -rf public/packs && bin/dev"
     puts ""
-    
+
     # Start Rails in production mode
     system "RAILS_ENV=production bundle exec rails server -p 3001"
   else
-    puts "Asset precompilation failed"
+    puts "❌ Asset precompilation failed"
     exit 1
   end
 end
 
 def run_static_development
-  puts "Starting development server with static assets..."
+  puts "⚡ Starting development server with static assets..."
   puts "   - Generating React on Rails packs"
   puts "   - Using shakapacker --watch (no HMR)"
   puts "   - CSS extracted to separate files (no FOUC)"
   puts "   - Development environment (source maps, faster builds)"
   puts "   - Auto-recompiles on file changes"
   puts ""
-  puts "Access at: http://localhost:3000"
+  puts "💡 Access at: http://localhost:3000"
   puts ""
-  
+
   # Generate React on Rails packs first
   generate_packs
-  
+
   if installed? "overmind"
     system "overmind start -f Procfile.dev-static"
   elsif installed? "foreman"
@@ -86,7 +88,7 @@ end
 
 def run_development(process)
   generate_packs
-  
+
   system "#{process} start -f Procfile.dev"
 rescue Errno::ENOENT
   warn <<~MSG
@@ -104,37 +106,37 @@ elsif ARGV[0] == "static"
 elsif ARGV[0] == "help" || ARGV[0] == "--help" || ARGV[0] == "-h"
   puts <<~HELP
     Usage: bin/dev [command]
-    
+
     Commands:
       (none) / hmr        Start development server with HMR (default)
       static              Start development server with static assets (no HMR, no FOUC)
       production-assets   Start with production-optimized assets (no HMR)
       prod                Alias for production-assets
       help                Show this help message
-      
+    #{'  '}
     HMR Development mode (default):
-    - Hot Module Replacement (HMR) enabled
-    - Automatic React on Rails pack generation
-    - Source maps for debugging
-    - May have Flash of Unstyled Content (FOUC)
-    - Fast recompilation
-    - Access at: http://localhost:3000
-    
+    • Hot Module Replacement (HMR) enabled
+    • Automatic React on Rails pack generation
+    • Source maps for debugging
+    • May have Flash of Unstyled Content (FOUC)
+    • Fast recompilation
+    • Access at: http://localhost:3000
+
     Static development mode:
-    - No HMR (static assets with auto-recompilation)
-    - Automatic React on Rails pack generation
-    - CSS extracted to separate files (no FOUC)
-    - Development environment (faster builds than production)
-    - Source maps for debugging
-    - Access at: http://localhost:3000
-    
-    Production-like mode:
-    - Automatic React on Rails pack generation
-    - Optimized, minified bundles
-    - Extracted CSS files (no FOUC)
-    - No HMR (static assets)
-    - Slower recompilation
-    - Access at: http://localhost:3001
+    • No HMR (static assets with auto-recompilation)
+    • Automatic React on Rails pack generation
+    • CSS extracted to separate files (no FOUC)
+    • Development environment (faster builds than production)
+    • Source maps for debugging
+    • Access at: http://localhost:3000
+
+    Production-assets mode:
+    • Automatic React on Rails pack generation
+    • Optimized, minified bundles
+    • Extracted CSS files (no FOUC)
+    • No HMR (static assets)
+    • Slower recompilation
+    • Access at: http://localhost:3001
   HELP
 elsif ARGV[0] == "hmr" || ARGV[0].nil?
   # Default development mode (HMR)