Add frozen_string_literal comments to fix RuboCop lint CI

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: justin808

config/application.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_relative "boot"
 
 require "rails/all"

config/environment.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Load the Rails application.
 require_relative "application"
 

config/environments/development.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_support/core_ext/integer/time"
 
 Rails.application.configure do

config/environments/test.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # The test environment is used exclusively to run your application's
 # test suite. You never need to work with it otherwise. Remember that
 # your test database is "scratch space" for the test suite and is wiped

config/initializers/assets.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Version of your assets, change this if you want to expire all your assets.

config/initializers/content_security_policy.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Define an application-wide content security policy.

config/initializers/cors.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Avoid CORS issues when API is called from the frontend app.

config/initializers/inflections.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Add new inflection rules using the following format. Inflections

config/puma.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This configuration file will be evaluated by Puma. The top-level methods that
 # are invoked here are part of Puma's configuration DSL. For more information
 # about methods provided by the DSL, see https://puma.io/puma/Puma/DSL.html.