Keep previous import source and code when a person is re-imported from another source

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/prisma/migrations/20261005180000_person_previous_source/migration.sql

@@ -0,0 +1,14 @@
+ALTER TABLE "Person" ADD COLUMN IF NOT EXISTS "previousImportSource" TEXT;
+ALTER TABLE "Person" ADD COLUMN IF NOT EXISTS "previousSourceRef" TEXT;
+
+CREATE INDEX IF NOT EXISTS "Person_organizationId_previousSourceRef_idx" ON "Person"("organizationId", "previousSourceRef");
+
+-- اشخاصی که قبلاً از دیدار آمده‌اند و بعد با ته‌حساب بازنویسی شده‌اند: کد دیدار را به‌عنوان کد قبلی بازیابی کن
+UPDATE "Person"
+SET "previousImportSource" = 'didar',
+    "previousSourceRef" = TRIM("customFields"->>'didarId')
+WHERE "importSource" = 'tahesab'
+  AND "previousSourceRef" IS NULL
+  AND "customFields" IS NOT NULL
+  AND jsonb_typeof("customFields") = 'object'
+  AND COALESCE(TRIM("customFields"->>'didarId'), '') <> '';