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- TenderMatch: one row per (tenderId, savedSearchId) pair, single nullable notifiedAt as the matched-vs-notified eligibility gate (D-06) - TenderNotificationPref: per-user digest interval (daily/weekly/off, D-01/D-03) - TenderSavedSearch.instantAlert: per-profile instant alert flag, default off (D-04) - Migration 20260722100000_add_tender_notifications applied to local dev DB (docker exec psql), recorded in _prisma_migrations, prisma generate run Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>