fix: keep imported follow-ups out of current work

They stayed on the board when a non-prior deal was attached, even though the person was prior.

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

apps/api/src/billing/billing.service.ts

@@ -287,17 +287,24 @@ export class BillingService {
             )
           )
           OR (
-            a."dealId" IS NULL
-            AND a."createdAt" < ${cutoff}
+            a."createdAt" < ${cutoff}
             AND (
               EXISTS (
                 SELECT 1 FROM "Person" AS p
-                WHERE p."id" = a."personId" AND p."importSource" = 'didar'
+                WHERE p."id" = a."personId"
+                  AND (
+                    p."importSource" = 'didar'
+                    OR p."previousImportSource" = 'didar'
+                  )
               )
               OR EXISTS (
                 SELECT 1 FROM "Company" AS c
                 WHERE c."id" = a."companyId" AND c."importSource" = 'didar'
               )
+              OR EXISTS (
+                SELECT 1 FROM "Deal" AS d2
+                WHERE d2."id" = a."dealId" AND d2."importSource" = 'didar'
+              )
             )
           )
         )