v1.1.0

Added

• server.js — opt-in server mode entry point via require('hint-errors/server').
  Identical pipeline to index.js but omits process.exit(1) so long-running
  servers survive uncaught errors in individual request handlers without taking
  down the entire process
• exports field in package.json exposing both . and ./server as valid
  import paths so Node resolves hint-errors/server correctly
• Console warning on server mode activation so silent error survival doesn't
  go unnoticed during development