- .gitattributes + an explicit allow-list in build-release.ps1 assemble a
  clean release tree (app/, core/, public/, scripts/, db/migrations only) -
  anything not on the allow-list is deleted from the deploy, so a stray
  file added later can't ship to production by accident.
- public/web.config.production.template holds the production appSettings
  (DB path outside the deploy dir, Environment=Production, error logging on).
- deploy-iis.ps1 builds, zips, and scp's a release to the IIS host, then
  runs deploy-iis-remote-apply.ps1 there over ssh to swap in the new files,
  run migrations, and restart the site/app pool - the DB and error log live
  outside the deploy directory so a redeploy never touches them.
- Removed deploy-iis-git.ps1 and migrate_isbusiness_to_households.vbs,
  leftovers from a different template project that didn't apply here.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>