Arnas Donauskas 3dce1b56cd feat(contacts): prevent duplicate phone numbers on create/import (#212) ... The same phone could become multiple contacts: only the WhatsApp webhook de-duped, while manual create and CSV import inserted raw un-normalized phones, and the DB had no uniqueness. That fragmented conversations, deals, and tags across duplicates. - Migration 022: generated `contacts.phone_normalized` (digits-only), a one-shot `merge_duplicate_contacts()` that collapses existing dupes into the oldest row (re-pointing conversations, deals, notes, tags, custom values, broadcast recipients — no data loss), then a UNIQUE (account_id, phone_normalized) index as the authoritative guarantee for every write path. - Shared `src/lib/contacts/dedupe.ts`: findExistingContact (suffix prefilter + phonesMatch), isExactMatch, isUniqueViolation, dedupeByPhone. The webhook now reuses findExistingContact (and recovers from a unique-violation race instead of dropping the message). - Contact form: on-blur duplicate check — hard-block + "view existing" link on an exact match, soft warning on a trunk-variant near-match; unique-violation backstop on submit. - CSV import: de-dupes within the file and against existing contacts, reports "imported / skipped / failed", treats 23505 as skipped. - Contact type gains account_id (was missing) + phone_normalized. - Unit tests for the dedupe helpers. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>		2026-06-08 15:52:38 +03:00
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migrations	feat(contacts): prevent duplicate phone numbers on create/import (#212)	2026-06-08 15:52:38 +03:00