Imports 20,284 US Catholic churches from discovermass.com including mass,
confession, and adoration schedules. Respects robots.txt Crawl-delay: 10.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add discovermassId field to ExistingChurch interface and ChurchCandidate type,
insert a dedicated matching pass in findDuplicateChurch, and update all 15 importer
push blocks plus 16 loadExistingChurches select queries to include the new field.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>