Add documentation and tests for new configuration options

- Add inline documentation for server_readiness_path and server_readiness_timeout
- Document default values and environment variable names
- Add test coverage for default values
- Add test coverage for custom configuration

This improves discoverability and ensures configuration options are properly tested.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: justin808

lib/cypress_on_rails/configuration.rb

@@ -22,7 +22,11 @@ class Configuration
     attr_accessor :server_host
     attr_accessor :server_port
     attr_accessor :transactional_server
+    # HTTP path to check for server readiness (default: '/')
+    # Can be set via CYPRESS_RAILS_READINESS_PATH environment variable
     attr_accessor :server_readiness_path
+    # Timeout in seconds for individual HTTP readiness checks (default: 5)
+    # Can be set via CYPRESS_RAILS_READINESS_TIMEOUT environment variable
     attr_accessor :server_readiness_timeout
 
     # Attributes for backwards compatibility

spec/cypress_on_rails/configuration_spec.rb

@@ -10,6 +10,8 @@
     expect(CypressOnRails.configuration.logger).to_not be_nil
     expect(CypressOnRails.configuration.before_request).to_not be_nil
     expect(CypressOnRails.configuration.vcr_options).to eq({})
+    expect(CypressOnRails.configuration.server_readiness_path).to eq('/')
+    expect(CypressOnRails.configuration.server_readiness_timeout).to eq(5)
   end
 
   it 'can be configured' do
@@ -22,12 +24,16 @@
       config.logger = my_logger
       config.before_request = before_request_lambda
       config.vcr_options = { hook_into: :webmock }
+      config.server_readiness_path = '/health'
+      config.server_readiness_timeout = 10
     end
     expect(CypressOnRails.configuration.api_prefix).to eq('/api')
     expect(CypressOnRails.configuration.install_folder).to eq('my/path')
     expect(CypressOnRails.configuration.use_middleware?).to eq(false)
     expect(CypressOnRails.configuration.logger).to eq(my_logger)
     expect(CypressOnRails.configuration.before_request).to eq(before_request_lambda)
     expect(CypressOnRails.configuration.vcr_options).to eq(hook_into: :webmock)
+    expect(CypressOnRails.configuration.server_readiness_path).to eq('/health')
+    expect(CypressOnRails.configuration.server_readiness_timeout).to eq(10)
   end
 end