Saved deduplication rule templates

Save and reuse dedup rule configurations as named templates — "Conservative match" (email + last name), "Aggressive match" (fuzzy name + phone OR address), "Major gift dedup" (your custom rules). Switch templates depending on the import or cleanup task. Share templates across team members so everyone uses the same standards. Replaces the "what rules did we use last time?" guesswork with version-controlled, reusable configurations.