1.0.0-rc74

(feat): Add opt-in requirePaths config option for auto-loading user-defined files when the gem is required. When configured (e.g., requirePaths: ["custom_integration", "sentry_integration"]), the gem entrypoint will auto-load each file from lib/<gem>/<path>.rb if it exists. This allows users to add custom code (e.g., Sentry integration) without needing to fernignore generated files. Uses file existence check to avoid silently swallowing real errors.