ESLint Config Braintree

Shared ESLint configuration for Braintree JavaScript projects. Current stable version is 7.0.1, requiring ESLint ^9.0.0 (flat config only, legacy .eslintrc support removed). It ships with TypeScript type declarations and provides presets for client (browserify), server (Node), and ES6 environments, as well as a JSDoc configuration. Unlike generic shareable configs (e.g., eslint-config-airbnb), it is opinionated for Braintree's internal standards and relies on plugins (e.g., @typescript-eslint/eslint-plugin, eslint-plugin-prettier) that must be installed separately. Release cadence is low; primarily updated for major ESLint versions.